News and Updates

Nov 2025

Publications

Katz, E. F., Arata, C. M., Pfannerstill, E. Y., Weber, R. J., Ng, D., Milazzo, M. J., Byrne, H., Wang, H., Guenther, A. B., Rey-Sanchez, C., Apte, J., Baldocchi, D. D., and Goldstein, A. H.: Biogenic and anthropogenic contributions to urban terpenoid fluxes, Atmos. Chem. Phys., 25, 15281–15299, https://doi.org/10.5194/acp-25-15281-2025, 2025. 

Staff

I have some good news for the Biomet team. Our pubs made the Clarivates 2025 list of Highly Cited scientists.  These are papers in the upper 1% of citations by broad topics. It is based on a 10 year moving window. So many of you played important tikes helping craft impactful papers that are well regarded by peers

https://clarivate.com/highly-cited-researchers/?

I am really happy to see a growing number of alumni join the list, too. I see Josh Fisher, Youngryel Ryu and Rodrigo Vargas. If i missed anyone let me know

With regards to Ameriflux and Fluxnet and our collaborators, I see Trevor Keenan, Andrew Richardson, Jingfeng Xiao and Markus Reichstein are listed

Oct 2025

Meetings

The Bioklimatologie Dept hosted a symposium in the honor of DDB while he was in residence. Peers, friends, former mentees, co authors and colleagues from across the German speaking biometeorology world attended. Baldocchi gave a presentation on How a Global Network of CO2 and H2O Flux Measurements has Contributed to our Understanding of Global Change Biology 

D. Baldocchi visited the Max Planck Institute of Biogeochemistry, in Jena, Germany and participated in a symposium. He also gave a presentation on drought and fluxes. There was a nice surprise as Riccardo Valentini flew in from Italy to attend the mini workshop. We thank Nick Lee and Markus Reichstein for organizing the event.

D. Baldocchi gave presentation on the Demise of Prandtl’s K theory to the Goettingen Academy of Sciences and Humanities.  This presentation was part of obligation of the Gauss Professorship he held while in residence.

Kyle Delwiche attended the Ameriflux Annual meeting in Arizona.

Publications

Khand, K., Senay, Gabriel B.,Friedrichs, MacKenzie, Yi, Koong, Fisher, Joshua B.,Wang, Lixin, Suvočarev, Kosana,Ahmadi, Arman,Chu, Housen,Good, Stephen,Mallick, Kanishka,Missik, Justine,Nelson, Jacob A.,Reed, David E., Wang, Tianxin,Xiao, Xiangmin (2025). "A novel approach to increase accuracy in remotely sensed evapotranspiration through basin water balance and flux tower constraints." Journal of Hydrology 662: 133824. https://doi.org/10.1016/j.jhydrol.2025.133824

Submissions

"Climate change has increased global evaporative demand except in South Asia" (reference number: COMMSENV-25-3409B) by Karimzadeh, ,Ahmadi, Fisher and Baldocchi has been accepted for publication. 

Sept 2025

Staff News

Arman Ahmadi ended his two tenure as a postdoc in the Biomet lab. We are super grateful for all the ideas and hard work Arman brought to the lab. He worked on our eddy flux measurements at several of the Delta sites and he brought his skills in machine learning to improve our interpretation of flux data.

Daphne Szutu has transferred over to the Oikawa lab at Cal State East Bay. Together our groups are still operating the mesonetwork of Delta field sites. However, Patty Oikawa and Kyle Delwiche will assume leadership of the sites. Daphne will continue to reside in 205 Hilgard with Joe Verfaillie

Meetings

Carlos Wang attended the Chapman Conference on the Energy Balance Closure Problem and gave a presentations and led discussions

Continued Break Out Group Discussions and Recommendations: Insights from Other Methods

T Wang, L Wanner, M Mauder

Chapman Conference on the Energy Balance Closure Problem

2025

A multiscale footprint-based approach to tackle the energy balance closure

H Chu, T Wang

Chapman Conference on the Energy Balance Closure Problem

2025

From Closure to Confidence: Using In Situ ET for Satellite Model Skill Assessment

JM Volk, BCC de Andrade, Y Kim, T Wang, S Sueki, JL Huntington, ...

Chapman Conference on the Energy Balance Closure Problem

2025

OpenET: Supporting Sustainable Water Management with Satellite-based Evapotranspiration Data

FS Melton, AJ Purdy, JM Volk, MK Friedrichs, W Carrara, SG Larsen, ...

Chapman Conference on the Energy Balance Closure Problem

2025

Reading the Poker Face of the notorious energy imbalance

T Wang, JG Alfieri, K Mallick, AA Ortiz, M Anderson, JB Fisher, M Girotto, ...

Chapman Conference on the Energy Balance Closure Problem

Dennis Baldocchi started a two month sabbatical at the Georg August University in Goettingen Germany as a Carl Friederich Gauss Professor of the Goettingen Academy of Sciences and Humanities in Lower Saxony. 

https://www.uni-goettingen.de/en/3240.html?id=7907

 He is working out of the Bioklimatologie lab of Prof Alex Knohl at Georg August University, Goettingen, https://www.uni-goettingen.de/de/67076.html

August 2025

Staff

Daphne Szutu returned to the lab after parental leave. Welcome back

Visitors

Youngryel Ryu continued his visit at the Biomet Lab

July 2025

Education-Outreach

ddb gave a lecture on Water 101 to the Beahrs Environmental Leardship Program on campus.

https://beahrselp.berkeley.edu/

DDBs OpEd piece in the Pt Reyes Light on 'We must defend Science and Environmental Data' was published

https://www.ptreyeslight.com/opinion/we-must-defend-science-and-environmental-data/

Meetings

Kyle Delwiche co convened and attended the Fluxnet workshop in Brisbane Australia. She gave a poster on Data-model fusion product for producing annual wetland gas flux estimates with limited duration eddy covariance measurement campaigns, authors: Delwiche, Kyle; Oikawa, Patty; Keenan, Trevor ; Baldocchi, Dennis.

Publications

Kyle Delwiche, Jaclyn Hatala Matthes, Ariane Arias-Ortiz, Sara H. Knox, Patty Oikawa, Cove Sturtevant, Joseph Verfaillie, Daphne Szutu, Trevor F. Keenan, Dennis Baldocchi (2025). "Dynamic methane emissions in a restored wetland: Decadal insights into uncertain climate outcomes and critical science needs." Agricultural and Forest Meteorology 373: 110735. https://doi.org/10.1016/j.agrformet.2025.110735

Rey-Sanchez, C., et al. (2025). "Explaining hot spots of methane flux in a restored wetland: the role of water level, soil disturbance, and methanotrophy." Environmental Research Letters 20(7): 074064.DOI 10.1088/1748-9326/ade45b

Submissions

2025WR041365, Towards affordable wetland evapotranspiration monitoring using the variance-Bowen ratio method: insights from three contrasting wetlands in the Sacramento-San Joaquin River Delta, Tiaxin Wang, Gabriel Senay, Joe Verfaillie, Daphne Szutu, MacKenzie Friedrichs, Jack Eggleston, Dennis Baldocchi

Visitors

Youngryel Ryu from Seoul National University is in residence for about 3 weeks, on his mini sabbatical. Youngryel is a biometlab alumnus and we are excited to work with him during these cool foggy summer days of no sky July and Foggust

We hosted the leadership team from the Meter Group, including Gaylon Campbell, a pioneer in environmental biophysics, his son Dr Colin Cmpbell and Dr Doug Cobos.  We discussed their application of the variance Bowen ratio method we developed was fun and interesting to talk with industry.

https://environmentalbiophysics.org/about-us/

Jiangong Liu from Hong Kong University of Science & Technology (HKUST), Guangzhou gave a lab presentation on his new paper in Nature Plants on feedbacks and causality of evaporation, soil moisture and vpd.

Liu, J., Wang, Q., Zhan, W. et al. When and where soil dryness matters to ecosystem photosynthesis. Nat. Plants 11, 1390–1400 (2025). https://doi.org/10.1038/s41477-025-02024-7

 June

Meetings

UC Wetlands Lab Fee meeting was held in Santa Cruz. Robert gave a talk on Periodic Methane Emissions from Dutch Slough Tidal Marsh.  DDB attended virtually.

Publications 

Ahmadi, A.,  Kanishka Mallick, Koong Yi, Dennis Baldocchi (2025). "Interpretable Machine Learning Reveals the Crucial Role of Water Availability in Regulating Thermal Optimality of Terrestrial Ecosystems.Journal of Geophysical Research: Machine Learning and Computation 2(2): e2024JH000445.  https://doi.org/10.1029/2024JH000445

 Staff News 

ddb has retired from active duty as a faculty member and associate dean.  He will continue to work with the team as a Professor in the Graduate School

Submissions 

egusphere-2025-2682  Title: Biogenic and anthropogenic contributions to urban terpenoid fluxes. Author(s): Erin F. Katz, Caleb M. Arata, Eva Y. Pfannerstill, Robert J. Weber, Darian Ng, Michael J. Milazzo, Haley Byrne, Hui Wang, Alex B. Guenther, Camilo Rey-Sanchez, Joshua Apte, Dennis D. Baldocchi, and Allen H. Goldstein

Visitors 

Joy Rutledge a recent graduate from Spellman College arrived and will work with Carlos Wang this summer as part of a Berkeley HBCU exchange program in food and environmental sviences. Welcome Joy

May

Education-Outreach 

Robert Shortt and ddb gave talks during the 100 hour Marathon on climate and weather https://wclivestream.com/ 

Robert spoke on our Delta greenhouse gas flux research. @ 6:06:55

Ddb gave a public talk on the breathing of the biosphere.  @ 2:27:00

Meetings 

ddb and Carlos Wang attended the 36th conference on Agricultural and Forest Meteorology in

Denver

AGFOREST Scaling Fluxes from Leaf to Canopy in Broadleaf Forests Using Canveg2: Model Evaluation and Analysis of Drought-Heat Stress ResponseMartin Beland, Laval University, Quebec, QC, Canada; and G. B. Bonan, H. kobayashi, and D. D. Baldocchi

We thank Kyaw Tha Paw U,  Larry Hipps and Carlos Wang for organizing a session on Meeting the Challenges of Agricultural and Forest Meteorology and Biometeorology: Past, Present, and Future.  They invited a cross section of Biomet lab alumni and current members to talk on 9.1 From Plant Ecophysiology to Planetary Boundary Layer Studies: An Academic Journey in Dennis Baldocchi’s Biomet Lab (Invited Presentation)Camilo Rey-Sanchez, North Carolina State University

9.2 Inspiring Future Generations, from First Principles Martin Beland, Laval University, Quebec, QC, Canada

 9. 3 Estimating and Upscaling the Baldocchi Flux Using Natural Neural Network Tianxin Wang, Berkeley

9.4 From Wetlands to Woodlands: Adventures in Scaling Ecosystem-Atmosphere Fluxes across Terrestrial-Aquatic Interfaces Jaclyn Hatala Matthes, Harvard University, Acton, MA; and J. W. Munger, N. Hegwood, S. A. Jurado, and J. Gewirtzman

9.5 Water, Water, Everywhere  Elke Eichelmann, Univ. College Dublin, Dublin 4, Ireland

Carlos and ddb served on the Panel Discussion on Challenges and Opportunities in Agricultural and Forest Meteorology and Biometeorology I was also pleased to see Cove Sturtevant and Youngryel Ryu attend the meeting. We had a wonderful set of lunches and dinners with the group through the meeting. Thanks all. Been a pleasure and honor to mentor you all and it is great to hear your lives are going well, both personally and professionally. At the end of the day this is our key obligation, to educate, train and inspire the next generation of scientists, engineers and experts

Staff News 

Kuno Kasak gave an exit seminar on his work in the Biometlab this past 10 months as a Fulbright Fellow. He brought tons of energy, field work, ideas and paper drafts in this short time. Efforts included extensive sampling of soils and chamber fluxes over soiils and azolla, a new study, bootlegged at Tonzi on methane uptake, or emission, from trees, soils and the ecosystem.  He and his family hosted a nice party with Estonia food this past Saturday.  He will be missed but we will continue to collaborate.. Thanks Kuno

Submissions 

We got some good news on reviews of submitted papers. Our paper, led by Arman Ahmadi "Interpretable Machine Learning Reveals the Crucial Role of Water Availability in Regulating Thermal Optimality of Terrestrial Ecosystems" [Paper #2024JH000445RR] to Journal of Geophysical Research - Machine Learning and Computation. will be published after minor revisions

A paper we are working with Ngoc Nguyen, Widespread underestimation of rain-induced carbon losses across global drylands" (NGS-2024-10-02772A), will also be published after minor revisions

And a paper by Camillo Rey Sanchez on Explaining Hot Spots of Methane Flux in a Restored Wetland: The Role of Water Level, Soil Disturbance, and Methanotrophy." was reviewed by ERL and needs a few more revisions

April

Education-Outreach 

ddb lectured on the Land Grant Universities and Agricultural Experiment Stations to ESPM 201a  The Biomet Lab led another field trip of 5th grade science students from Knightsen and Old River elementary schools to our Dutch Slough Ameriflux site. Thanks to scientists from DWR, Molly Ferrill, Tyler Anthony, USGS, Karen Thorne and her interns,  UCDavis Jason Riggio, and our team of Robert, Kyle and Joe for helping, plus Kuno from Estonia   i encourage all environmental scientists to adopt a local school and do at least one day of out reach per year. Field trips are an experience so many students are missing out today. They learned how peat was formed, how we measure Co2 and methane fluxes, about the Delta, California rivers, salinity gradients in the SF bay estuary, the abundance of birds...plus otter poop. Knightsen has a special place in my heart. It is in east Contra Costa county and doesnt get the attention from faculty like Oakland and Berkeley schools. It is where i learned to swim and where i attended 4H meetings as a kid. The kids are so curious and attentive. Plus a wonderful spring day with a nice Delta breeze

The Fluxnet project was profiled in the College Breakthrough magazine https://nature.berkeley.edu/breakthroughs/sp25/world-climate-data

Meetings 

Robert Shortt gave the Berkeley Atmospheric Science Center seminar as part of his require for an exit presentation for his PhD. Vy nice over view of the carbon dioxide and methane fluxes measured over our Delta network

ddb gave the ESPM Distinguished Faculty Spotlight lecture on Biometeorology@Berkeley 

https://berkeley.app.box.com/s/cuc29sup8y221zm9qtsy8ow2gc9jslhd

Staff News 

ddb learned he is a 2024 Highly Ranked Scholar by ScholarGPS, ranked lifetime in the following subfields; thanks to the Biometlab team for working together to publish regularly and produce high quality and novel papers that are well received by our peers

Highly Ranked Scholar - Lifetime #2,028 Overall (All Fields), #441 Life Sciences, #5 Environmental Sciences, #3 Biosphere, #3 Global change, #4 Forest

Submissions 

Climate change has increased global evaporative demand, except in South Asia, PNAS Saeed Karimzadeh, Arman Ahmadi, Dennis Baldocchi, Joshua B. Fisher The Roads Traveled to Reach a Greenhouse Gas Flux Network, Dennis Baldocchi, Perspectives of Earth and Space Scientists, https://agupubs.onlinelibrary.wiley.com/journal/26376989

March

Meetings 

ddb attended the workshop on Missing Links in Drought Research: Linking Plant Physiology, Soil Hydrology and Climate across Scales, Ascona, Switzerland and give a keynote presentation on How Ecosystem CO2 and H2O Fluxes Respond to Drought: Lessons Learned from a Semi- Arid, Oak Savanna in California https://www.zhydro.ch/monteverita2025/

Publications 

Jiang, P.,  Kidger, P.,  Bandai, T.,  Baldocchi, D.,  Liu, H.,  Xiao, Y., et al. (2025).  JAX-CanVeg: A differentiable land surface model. Water Resources Research,  61, e2024WR038116. https://doi.org/10.1029/2024WR038116

Visitors 

Silvia Caldararu from Trinity University Dublin gave a lab seminar on her research on ecosysteresponse to phenology, drought and temperature with models and experiments 

February

Meetings

ddb attended CARB Public Workshop: Natural and Working Lands Carbon Inventory Methods

Kuno Kasak will attend the LICOR Connect 2025 meeting in Tucson, AZ. He will give apresentation on Methane flux dynamics in California oak savanna

 Submissions

A global network of flux measurements revolutionizes terrestri, al carbon and water cycleresearch Nature Reviews Earth & Environment, Jingfeng Xiao, D BaldocchiK. Ichii,  Fe Lei, D Papale

 JAX-CanVeg: A Differentiable Land Surface Model" [Paper #2024WR038116R] by Peishi Jian, Patrick Kidger, Toshiyuki Bandai, Dennis Baldocchi, Heping Liu, Yi Xiao, Qianyu Zhang,

Carlos Tianxin Wang, Carl Steefel, Xingyuan Chen has been accepted for publication by Water Resources Research THE ROLE OF HYDROPHYSICAL FACTORS AND SEDIMENT CARBON-NITROGEN COMPOUNDS IN GREENHOUSE GAS EMISSIONS FROM RESTORED CALIFORNIA WETLANDS. Kuno Kasak, PhD Arman Ahmadi, PhD Daphne Szutu Robert Shortt Tianxin Wang, PhD Kyle Delwiche, PhD Eduardo Gamez Ariane Arias Ortiz, PhD Koong Yi, PhD Isaac Okiti Patty Oikawa, PhD Joseph Verfaillie Dennis Baldocchi, PhD. Water Research, submitted

January

Meetings 

ddb attended the AMS annual meeting in New Orleans. He gave an invited talk on Beyond Carbon Fluxes: Extracting Meteorological, Eco-Hydrological, Soil and Plant Information from the Ameriflux/FLUXNET Databases and received the Verner E Suomi Technology Medal

 https://ams.confex.com/ams/105ANNUAL/meetingapp.cgi/Paper/454012

 Publications 

Wang, T., Mallick, Kanishka, Verfaille, Joseph, Szutu, Daphne, Baldocchi, Dennis et al. (2025). "Water scarcity in semi-arid California compromises perennial alfalfa’s high yield and carbon sinking potentials." Agricultural Water Management 308: 109284. https://doi.org/10.1016/j.agwat.2024.109284

 Staff News

D. Baldocchi received the Suomi Technology Medal at the 2025 annual meeting of the American Meteorological Society. list of winners https://www.ametsoc.org/index.cfm/ams/about-ams/ams-awards-honors/2025-award-and-honors-recipients/ Honors presentation on youtube, with ddb at minute 37.. https://youtu.be/odUXyvRF5Vw

December

Meeting

The Biometlab and alumni were well representated at AGU. Among current members RobShortt, Carlos Wang, Arman Ahmadi,  Kyle Delwiche and Koong Yi gave posters and presentations.  DDB was honored to receive an Ambassador Award and got to celebrate with a wonderful contingent of lab members, alumni and collaborators, and spouse, Nicole

November

Education-Outreach 

ddb gave a lecture on How Can We Share Water in California While Sustaining Food, Forests

and Watersheds in a Changing Climate? to the UCANR Leadership Academy

Carlos Wang gave a Pub Science talk on advection and energy fluxes at Ocean View Brew Pub.

Thanks Carlos

Meetings edit | delete

there will be a number of talks and posters at AGU. Here is the list released

Abstract ID#: 1690172

Abstract Title: Quantifying Urban Natural Gas Emissions Using Eddy Covariance Flux

Measurements in Berkeley, California

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1690172

Abstract ID#: 1710030

Abstract Title: An Automated Soil Core Incubation System to Measure Greenhouse Gas Fluxes

from Wetland Soils Subjected to Simulated Tidal Fluctuations

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1710030

Abstract ID#: 1537838

Abstract Title: Examining the Energy Imbalance of Eddy-Covariance Measurements in a Tidal

Wetland

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1537838

Abstract ID#: 1596108

Abstract Title: Three dimensional simulations confirm significant contribution of stem heat

storage in the energy budget of deciduous forests

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1596108

Abstract ID#: 1538913

Abstract Title: Understanding the Role of Water Availability in Regulating Thermal Optimality

and Ecosystem Productivity Using Interpretable Machine Learning

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1538913

Abstract ID#: 1638822

Abstract Title: Variability in Methane Flux and Its Driving Mechanisms in Wetland Ecosystems

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1638822

Abstract ID#: 1757584

Abstract Title: Periodicity in Methane Emissions from a Restored Freshwater Wetland

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1757584

Abstract ID#: 1597580

Abstract Title: Measuring wetland evapotranspiration with variance-Bowen ratio technique

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1597580

Abstract ID#: 1632659

Abstract Title: Trends in Carbon and Water Fluxes Across AmeriFlux: Insights from Eddy

Covariance Measurements

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1632659

Abstract ID#: 1696986

Abstract Title: Data-model fusion product for producing annual wetland gas flux estimates with

limited duration eddy covariance measurement campaigns

Abstract Viewer Link: https://agu.confex.com/agu/agu24/meetingapp.cgi/Paper/1696986

Staff News edit | delete

ddb is a Clarivates Highly Cited Researcher for 2024.  Other alumni listed include Josh Fisher

and Youngryel Ryu.

Submissions edit | delete

Dynamic Methane Emissions in Restored Wetlands: Decadal Insights into Uncertain Climate

Outcomes and Critical Science Needs Delwiche, Kyle; Matthes, Jackie; Arias-Ortiz, Ariane;

Knox, Sara H.; Oikawa, Patty; Sturtevant, Cove; Verfaillie, Joseph; Szutu, Daphne; Keenan,

Trevor F.; Baldocchi, Dennis. AgForest Meteorology

October

Education-Outreach edit | delete

The Biometlab was quoted in article on California nut farms have seen staggering losses due to

smoke from megafires

https://www.sfchronicle.com/climate/article/farm-crop-fire-smoke-19805037.php

Our team provide solar radiation data from our California network that was ued by this team

from UC Davis

We are mentoring Gelary Cardenas. She is an ES major working on her senior thesis. She is

interested in using remote sensing to study the dynamics of our wetland sites that are tidal and

non tidal, fresh and saline. She is looking at our met and flux data in doing this work. We are

discussing questions, data etc. She is making good progress

ddb gave a presentation on How Well Do Restored Wetlands in the Delta Serve as a Natural

Climate Solution? to the Interagency Ecological Program Climate Change Project Work

Team https://iep.ca.gov/

Spoke on climate change and ecosystems to a meeting of the Chileno Valley Newt

Brigade https://www.chilenovalleynewtbrigade.org/

Richard Sutor, a high school student at Oceanside High in Pacifica, interview ddb on climate

change and rapid decarbonization. It is for his senior term paper. He was very prepared and

asked excellent and probing questions. His goal is to go to either Montana or Washington State

and study forestry.  

In my role as associate dean, we hosted the USDA Undersecretary for Research, Education, and

Economics and Chief Scientist to tour our facilitiels

https://nature.berkeley.edu/news/2024/10/usda-undersecretary-jacobs-young-tours-oxford-

facility

Meetings edit | delete

Several Biomet lab members (Robert Shortt, Kuno Kasak, Kyle Delwiche, Joe and Daphne?)

attended the workshop on processing methane fluxes, organized by alumna, Sara Knox.

https://ameriflux.lbl.gov/event/flux-workshop-on-october-21-to-23-2024-data-processing-to-

facilitate-the-inclusion-of-new-sites-into-fluxnet-ch4-v2-0-and-the-fluxnet-2025-data-release/

The Biomet lab is submitting a large body of data that will go into producing the Methane

Fluxnet 2.0 dataset

Publications edit | delete

Yi, K. Gabriel Senay, Joshua Fisher, Lixin, Wang, Housen, Chu,Kosana Suvomarev, Georgianne

Moore,Kimberly A. Novick,  Mallory L. Barnes,  Trevor F. Keenan,  Kanishka

Mallick,  Xiangzhong Luo, Justine E. C. Missik,  Kyle B. Delwiche,  Jacob A. Nelson,  Stephen

P. Good,  Xiangming Xiao,  Steven A. Kannenberg, Arman Ahmadi,  Tianxin Wang,  Gil

Bohrer,  Marcy E. Litvak,  David E. Reed,  A. Christopher Oishi,  Margaret S. Torn,  Dennis

Baldocchi 2024,Challenges and Future Directions in Quantifying Terrestrial Evapotranspiration,

Water Resour. Res., 60(10), e2024WR037622, doi:https://doi.org/10.1029/2024WR037622.

Jones SF, Arias-Ortiz A, Baldocchi D, et al. When and where can coastal wetland restoration

increase carbon sequestration as a natural climate solution? Cambridge Prisms: Coastal Futures.

2024;2:e13. doi:10.1017/cft.2024.14

Staff News edit | delete

The Goettingen Academy of Science, in Lower Saxony, has granted ddb with a Gauss

Professorship for 2 months in 2025. He will work with Alex Knohl's Bioclimatology group and

give lectures and seminars.

Visitors edit | delete

Dr. Dien Wu from CalTech and CSU visited to discuss evaporation and water use by orchards

across the Central Valley. Our research interests overlap and she has novel data on orchard water

use from the Wonderful Co

Kaighan McColl from Harvard stopped by to chat before his BASC seminar. nice conversation

on controls on evaporation

https://eps.harvard.edu/people/kaighin-mccoll 

Sara Knox and Debora Roberti stopped by to visit after attending Sara's Methane workshop in

Berkeley

Lauren Lowman from Wake Forest stoped by to talk about ecohydrology

September

Education-Outreach edit | delete

ddb participated on a Career Pathways Panel discussion for the Early Career Day preceeding the

the annual Ameriflux meeting in Berkeley.

ddb served on the PhD Orals defense committee of Chitra Chopra, UC Davis, Atmospheric

Sciences Dept Land, Air, Water Resources

Halasya Lakshmipurna Malladi is starting to work in the lab as an intern. She is taking

Biometeorology and has a background in statistics and data science. She has been joining our lab

meetings, too

Meetings edit | delete

Many members of the Biomet Lab attended the annual Ameriflux meeting in Berkeley (Joe,

Daphne, Carlos, Robert, Kyle, Arman, Koong, Kuno). And we were well represented with

alumni (Cove, Jackie, Lianhong, Housen, Patty).

Presentations were given by Kyle on Fluxnet, Carlos on advection, Arman on temperature

optima of photosnythesis and ddb on Ameriflux, the sum is more than the parts. Koong led

sessions on remote sensing.

All lots of fun and we learned a lot

Publications edit | delete

Arias-Ortiz, A., Wolfe, J., Bridgham, S. D., Knox, S., McNicol, G., Needelman, B.

A., Shahan, J., Stuart-Haëntjens, E. J., Windham-Myers, L., Oikawa, P. Y., Baldocchi, D.

D., Caplan, J. S., Capooci, M., Czapla, K. M., Derby, R. K., Diefenderfer, H.

L., Forbrich, I., Groseclose, G., Keller, J. K., … Holmquist, J. R. (2024). Methane fluxes in tidal

marshes of the conterminous United States. Global Change Biology, 30,

e17462. https://doi.org/10.1111/gcb.17462

Research edit | delete

Kuno Kasak has been leading a number of field studies with our chamber systems. He is working

with Joe on measuring methane fluxes from tree boles at Tonzi and at the wetlands he is

sampling with Robert hot spots in the wetlands associated with azolla. It seems to hinder O2

transfer, plant material dies and is consumed to produce CH4

The batteries to our flux system at Dutch Slough were stolen. Luckily it was discovered within

24 hours and Joe bought and installed new batteries

 Joe and Daphne have increased the height of the East End tower as the tules are tall

They also removed and replaced rusted tower scaffolding at Mayberry to make this site safe.

thanks gang

Staff News edit | delete

ddb is a recipient of the AGU Ambassador Award. We are looking forward to sharing a meal and

celebrate with many from the Biomet lab this December in DC.

We held the Biometlab Picnic bbq at Dillon Beach. Great attendance and fun with the next

generation, too

Visitors edit | delete

Irene Monteil has returned to Spain. We thank her for all the hard work she did sampling soils

and assessing changes in soil carbon at a set of our wetlands sites.  

August

Education-Outreach edit | delete

ddb lectured on Water to the Beahrs Environmental Leadership Program class here in

Berkeley

https://youtu.be/LvH-acPMBEg?feature=shared

Hannah Adler visited the biomet lab and collaborated on wetland field sampling campaign.

Hannah is an undergraduate at Harvard and is working with Jackie Mathes on a senior thesis

Meetings edit | delete

ddb and Kyle Delwiche attended a workshop on Understanding the drivers and magnitudes of

CH 4 source-sink transitions in climate sensitive ecosystems in Orono, ME virtually.  ddb gave a

talk on Trials and Tribulations Measuring Methane Fluxes with Eddy Covariance over Non-Tidal

and Tidal Restored Wetlands in the San Francisco Bay-Delta Estuary

Publications edit | delete

 Wang, Tianxin, Joseph Alfieri, Kanishka Mallick, Ariane Arias-Ortiz, Martha Anderson,

Joshua B. Fisher, Manuela Girotto, Daphne Szutu, Joseph Verfaillie, and Dennis

Baldocchi. "How advection affects the surface energy balance and its closure at an

irrigated alfalfa field." Agricultural and Forest Meteorology 357 (2024):

110196. doi: https://doi.org/10.1016/j.agrformet.2024.110196

Research edit | delete

Delta

Kuno Kasak led a field sampling campaign at Eden Landing, Mayberry and Dutch Slough. Soil

cores and fluxes of CO2, methane and N2O were sampled.  It was nice chance to run our new

chamber system through the paces.

 we thank the team of at least 10 people from the Paytan, Oiakawa, Rhew, Banfield, Matthes and

Biometlabs for helping

We learned a lot, like how azolla patches in open water are methane sources

 Tonzi

Kuno and Joe also did an exploratory study on methane uptake by boles and soils at Tonzi.

 Mostly small uptake

Staff News edit | delete

Kuno Kasak from Tartuu University in Estonia returns to the BiometLab for a year as a

Fulbright. We welcome Kuno and look forward to more collaborations on sampling and

understanding methane and CO2 fluxes from tidal and non tidal restored wetlands in the Delta

Carlos Wang will be returning to the Biometlab as a CESU/USGS Postdoctoral Fellow. He

secured funding from USGS to study evaporation from wetlands, across the Delta and US.

Visitors edit | delete

Morteza Sadeghi and Ali Mokhtari from DWR and Technical University of Munchen attended

the Biometlab meeting and presented their work on evaporation and soil moisture.

July

Education-Outreach edit | delete

Daphne and ddb hosted 6 STEM students from Antioch High to the Dutch Slough wetland site.

 These studentsare part of a program by BioTech Partners, who is working with local schools to

give students experience in science and technology.  This group has summer internships with

Contra Costa Water District. 

Several days later 3 students from this group came to campus to visit the biomet Lab. We

showed them sensors, calibration instruments, remote sensing images and did demos on soil

respiration and methane production of dry and wet soils. They learned about the connections of

soils, microbes, plants, air, wind and sunlight. The set of skills needed to do this work and the

fun and multifaceted aspects of discovery working in this space

Meetings edit | delete

ddb and Koong Yi atteneded the Remote Sensing and Fluxes Upscaling for Real-world Impact

hosted by Ameriflux at LBL.  Koong was one of the organizers.

As directore of the CA CESU, ddb attended the national CESU meeting.  Ben Becker, our local

National Park Service partner, also attended.

Publications edit | delete

Bai, Y., K. Mallick, T. Hu, S. Zhang, S. Yang, and A. Ahmadi (2024), Integrating machine

learning with thermal-driven analytical energy balance model improved terrestrial

evapotranspiration estimation through enhanced surface conductance, Remote Sensing of

Environment, 311, 114308, doi:https://doi.org/10.1016/j.rse.2024.114308.

Mallick, K., Verfaillie, Joseph, Wang, Tianxin, Ortiz, Ariane Arias, Szutu, Daphne, Yi,

Koong, Kang, Yanghui, Shortt, Robert, Hu, Tian, Sulis, Mauro, Szantoi, Zoltan, Boulet,

Gilles, Fisher, Joshua B.,Baldocchi, Dennis (2024), Net fluxes of broadband shortwave and

photosynthetically active radiation complement NDVI and near infrared reflectance of vegetation

to explain gross photosynthesis variability across ecosystems and climate, Remote Sensing of

Environment, 307, 114123, doi:https://doi.org/10.1016/j.rse.2024.114123.

Submissions edit | delete

"Methane Fluxes in Tidal Marshes of the Contiguous United States by Arias Ortiz et al was

accepted by Global Change Biology

When and where can coastal wetland restoration increase carbon sequestration as a natural

climate solution? by Jones et al accepted by Cambridge Coastal Futures

 "Water Availability as a Key Regulator of Thermal Optimality in Terrestrial Ecosystems:

Evidence from Flux Measurements and Machine Learning" by Ahmadi, Arman; Mallick,

Kaniska; Yi, Koong; Baldocchi, Dennis,  has been successfully submitted for publication in

Global Change Biology.

Visitors edit | delete

Happy to host Martin Beland for another 2 weeks. He is making tons of progress advancing

CANVEG as an interfaced with canopy work here and implementation of multilayer concepts

into the CLM land surface model at NCAR

We hosted Prof. Youngryel Ryu from Seoul National University for a day. Ryu is a former

student and is in town to deliver a keynote lecture at the LBL Ameriflux Scaling workshop

June

Education-Outreach edit | delete

Ddb was interviewed by ABC7 news on how-climate-is-impacting-californias-wildfire-

season-solution

https://abc7news.com/post/how-climate-is-impacting-californias-wildfire-season-

solution/14967186/

Meetings edit | delete

DDB gave a presentation on Towards Quantifying the Effects of Climate Change and Sea Level

Rise on Carbon Accretion of Tidal and Non-Tidal Wetlands Exposed to a Range of Salinity

along the San Francisco Bay Estuary and Delta for the Delta Research Awards Seminar Series.

Thanks to the BiometLab team for the production of close to 100 site years of data for this

presentation to Delta managers and stakesholders

 The Youtube presentation will be posted on https://www.youtube.com/@DeltaCouncil

DDB participated on the Science Advisory Board of the Karlsruhe Institute of Technology Earth

and Environment program

Meetings edit | delete

Daphne, Robert, visitor Irene, and ddb attended the uc lab fees wetland project meeting at uc

Santa Cruz.  Saturday was a wonderful field trip to Ano Nuevo Natral reserve to see elephant

seals,pelicans and talk science

Publications edit | delete

Yi, K., K. A. Novick, Q. Zhang, L. Wang, T. Hwang, X. Yang, K. Mallick, M. Béland, G. B.

Senay, and D. D. Baldocchi (2024), Responses of Marginal and Intrinsic Water-Use Efficiency

to Changing Aridity Using FLUXNET Observations, Journal of Geophysical Research:

Biogeosciences, 129(6), e2023JG007875, doi:https://doi.org/10.1029/2023JG007875.

Research edit | delete

Our visitor, Irene Alorda Montiel, led a team (Armand, Daphne and Joe, to resample soil carbon

profiles at Hill Slough, several years after restoration. It will be interesting to see the change over

time with the influx of new sediments, organic matter etc

Visitors edit | delete

Irene Alorda Montiel from Ariane Arias Ortiz lab in Barcelona will be a summer visitor in the

Biomet lab. She will help us improve our sampling of soil carbon at the tidal wetland sites.

Welcome

https://mers.uab.cat/?member=irene-alorda-montiel

May

Meetings edit | delete

DDB attended the UC ANR Academic Regional Meeting 3, in Stockton, May 31. Got to meet a

number of CE specialists and county agents working on water, orchards, rice.

Robert Shortt and Kyle Delwiche attended the State of the Bay Estuary conference in Oakland.

Robert presented a poster on Subsidence and Sea Level Rise: Impacts of Land Use on Levee

Stability

Staff News edit | delete

Tianxin Carlos Wang graduated with a PhD. Congratulations

Visitors edit | delete

Sebastian Wolf from ETH Zurich, a former postdoc, dropped by for lunch on his annual visit to

service sites at Sagehen forest. Always great to see him

April

Education-Outreach edit | delete

On April 23 we hosted 100 4th graders from Los Medanos Elementary school in Pittsburg to

the Dutch Slough field site. We say a dead beaver, osprey, great blue heron etc. Thanks to Tyler

Anthony from CARB, Molly Ferril and Kate Bandy from DWR, the bat expert from UC Davis.

as well as Daphne, Kyle and Robert from the Biomet lab. It was lots of fun, great group of kids.

It was a beautiful day, the students were engaged and curious. 

We hosted our 3rd annual field trip to Dutch Slough with Knightsen and Old River Elementary

schools.  It was a cold and rainy day. We thank our partners for helping mentor the students.

Dylan Chapple from the Delta Council, Molly Ferrill from DWR, Tyler Anthony from CARB,

Robert Shortt and Daphne Szutu from the Biomet lab and a fish/wildlife expert from Davis..

Despite the rain and cold, the kids were very flexible and seemed to enjoy the experience, as well

as attending parents

Meetings edit | delete

BASC seminar Tianxin Carlos Wang/Baldocchi Group Don't be a drag, just be a queen: the reign

of surface energy balance under advection at an irrigated alfalfa site

Publications edit | delete

Mallick, K., Verfaillie, Joseph, Wang, Tianxin, Ortiz, Ariane Arias, Szutu, Daphne, Yi,

Koong, Kang, Yanghui, Shortt, Robert, Hu, Tian, Sulis, Mauro, Szantoi, Zoltan, Boulet,

Gilles, Fisher, Joshua B. Baldocchi, Dennis(2024). "Net fluxes of broadband shortwave and

photosynthetically active radiation complement NDVI and near infrared reflectance of vegetation

to explain gross photosynthesis variability across ecosystems and climate." Remote Sensing of

Environment 307: 114123.

Staff News edit | delete

Tianxin 'Carlos' Wang submitted his dissertation, Bending fluxes in an alfalfa field: a study of

energy, water, and carbon dynamics'  to campus today and is now Dr. Wang.  Congratulations

Submissions edit | delete

Water scarcity in semi-arid California compromises perennial alfalfa’s high yield and carbon

sinking potentials. Journal of Hydrology,  Tianxin Wang, Kanishka Mallick, Joe Verfaille,

Daphne Szutu, Dennis Baldocchi.

When and where can coastal wetland restoration increase carbon sequestration as a natural

climate solution? Authors (Order TBD): Scott F. Jones, Ariane Arias-Ortiz, Dennis Baldocchi,

Meagan Eagle, Daniel A. Friess, Catrina Gore, Greg Noe 7 , Stefanie Nolte, Patty Oikawa, Adina

Paytan, Jacqueline L. Raw, Brian J. Roberts, Kerrylee Rogers, Charles Schutte, Camille Stagg,

Karen M. Thorne, Eric Ward, Lisamarie Windham-Myers, Erik S. Yando Coastal Futures

Visitors edit | delete

Prof. Josep Penuelas from Barcelona returns to visit the Biometlab this week, continuing our

multi-year series of visits.

Been informed we will have the pleasure of hosting Kuno Kasak as a Fulbright scholar, from

Estonia, for a year starting this August.  Fantastic timing.

March

Education-Outreach edit | delete

Our work with Susanna Tringe was profiled on ABC Bay Area News 7 on a story Study Links

Sea Level Rise to Methane Release

https://archive.org/details/KGO_20240302_010000_ABC7_News_500PM/start/960/end/102

0

The Wetland team of Patty Oikawa, Robert Shortt, Adina Paytan, Barbara Haya, Chris Gough

and Dennis Baldocchi met with a team from Google, including Randy Spock the Carbon Credits

and Removals Lead at Google to discuss Coastal Wetland Restoration for Climate Mitigation

We met with the 5th grade science teachers from Knightsen Elementary to plan the upcoming

field trip to Dutch Slough on April 4.  This will be the third year of hosting this group.

We also had a planning meeting with teachers from Los Medanos Elementary in Pittsburg. they

plan to bring about 100 students to the Dutch Slough site in late April

Publications edit | delete

Novick, K. A., Keenan, TF, Anderegg, WRL, Normile, CP, Runkle, BRK, Oldfield, EE,

Shrestha,G, Baldocchi, DD, Evans, ME, Randerson, JT, Sanderman, J. Torn, MS, Trugman, AT,

Williams, CA (2024). "We need a solid scientific basis for nature-based climate solutions in the

United States." Proceedings of the National Academy of Sciences 121(14):

e2318505121. https://doi.org/10.1073/pnas.2318505121

Staff News edit | delete

We  have 2 undergraduates starting to work in the Biomet lab

Izzie Kaye Wamsteker is working with Daphne and is learning about the PepprMnt model for

calculating methane fluxes in the wetland. During spring break Izzie joined us on a field trip to

the delta

Gelary Cardenas will start working on measuring greenhouse gas fluxes with our chamber

system as part of her Environmental Science Senior thesis.

Submissions edit | delete

Mallick et al. RSE-D-23-01335R1

Title: Net Fluxes of Broadband Shortwave and Photosynthetically Active Radiation Complement

NDVI and Near Infrared Reflectance of Vegetation to explain Gross Photosynthesis Variability

Across Ecosystems and Climate.Remote Sensing of Environment. accepted

Visitors edit | delete

Ivan Janssens from Univ of Antwerp is on short term visit to Berkeley with Margaret Torn. We

got together to discuss fluxes and flux networks. Ivan was on the early team of EuroFlux in the

Ceulemans group and mentored my former postdoc Jorge Curiel Yuste.

we also hosted Ivan and his spouse Inge on a tour of our delta field sites. Nice to share ideas on

wetlands

Brian Bailey of UC Davis gave a great seminar on his Helios model system that computes

turbulence, radiative transfer and mass and energy exchange over 3D canopies. This lecture is

the Future of Biometeorology

February

Education-Outreach edit | delete

Joe has set up the Arable meteorological sensors at Bouldin corn for the public to provide

weather data for duck hunters 

https://biometlab.cnr.berkeley.edu/dailydata.php?screen=arable&sid=BC 

We plan to install another Arable at Dutch Slough for educational purposes for students at

Knightsen Elementary and for colleagues working at Dutch Slough from Davis, DWR, USGS,

etc

ddb gave a public lecture on Fog Sunday Feb 25, 2 pm at the Tomales Historical Society

You thought you knew fog? There’s so much more to this phenomenon in nature, myth, and

mystery. FOG. Clarifying the cloudy, fuzzy, misty, murky, soupy thing we live with

https://www.tomaleshistory.com/events/2024/2/25/fog-lecture-2024

Publications edit | delete

Baldocchi, D., K. Novick, T. Keenan, and M. Torn (2024), AmeriFlux: Its Impact on our

understanding of the ‘breathing of the biosphere’, after 25 years, Agricultural and Forest

Meteorology, 348, 109929, doi:https://doi.org/10.1016/j.agrformet.2024.109929.

Baldocchi, D. D., and A. Arias Ortiz (2024), Alternating Conditional Expectations: Introducing

a Non-Parametric Statistical Method to Interpret Long-Term Greenhouse Gas Flux

Measurements Over Semi-Arid and Wetland Ecosystems, Journal of Geophysical Research:

Biogeosciences, 129(3), e2023JG007818, doi:https://doi.org/10.1029/2023JG007818.

Research edit | delete

Troy Magney and his team from UC Davis installed the T SWIFT system to measure SIF at

Tonzi Ranch.  Great to get this new way of sensing the canopy. Plus Sophie Ruehr of the Keenan

lab installed a thermal camera at the site.

We are also adding more point dendrometers from a sensor in Czech Republic

Submissions edit | delete

The Ameriflux review was accepted by Agricultural and Forest Meteorology

The Alternating Conditional Expectations paper was accepted by Journal of Geophysical

Research, Biogeosciences

Visitors edit | delete

Cove Sturtevant from NEON came to visit. Gave a lab seminar on the power of ANN to extract

information on controls of fluxes and to extract response functions.

Cove is former postdoc and wrote much of our matlab processing code. great to see  him again

and learn.

Nico Bambach from UC Davis gave the biometlab seminar presentation. Nico is expert on

evaporation measurements and modeling from almonds and showed us the many comparisons

they are making and how almond evaporation is varying over the year. It uses up to 10 mm/d

during the growing season.

January

Other edit | delete

ddb was an external reviewer of UCLA's Institute of the Environment and Sustainability, a

similar unit at our partner campus.  Also met lots of people and students.  Very interesting

exercise to do.  One learns more about the nuts and bolts of how a University Unit functions and

a chance to think about where we in the environmental sciences should be going.

Publications edit | delete

Hartman, W. H., C. P. B. d. Mesquita, S. M. Theroux, C. Morgan-Lang, D. D. Baldocchi, and S.

G. Tringe Multiple microbial guilds mediate soil methane cycling along a wetland salinity

gradient, mSystems, 0(0), e00936-00923, doi:10.1128/msystems.00936-23.

Volk, J. M., ...Tianxin Wang.. et al. (2024), Assessing the accuracy of OpenET satellite-based

evapotranspiration data to support water resource and land management applications, Nature

Water, doi:10.1038/s44221-023-00181-7.

Baldocchi, D., and K. Mallick (2024), Towards sharing water better with near real-time maps on

evaporative water use by crops and natural vegetation, Nature Water, doi:10.1038/s44221-023-

00183-5.

Visitors edit | delete

Martin Beland has returned for an extended stay in the Biomet Lab. Welcome back Martin

Iryna Dronova gave a presentation on remote sensing of the delta and our field sites. Wonderful

survey of products and trends in clusters at our sites. Lots of ideas for future collaboration among

our groups

Einara Zahn, from Princeton, gave a Biomet lab seminar on flux partitioning, large eddy

simulation and Monin Obukov Similarity theory.  All state of art models and measurements.

Check out her recent papers.

https://cee.princeton.edu/people/einara-zahn-0

December

Education-Outreach

Gave an interview on climate change and solutions to two high school students from Long Beach Polytechnic High School. They asked very pertinent questions. Told me rhey were 9th graders

Meetings 

AGU

B54A-06Carbon Biogeochemical Cycling in Tidal Wetlands: Exploring Lateral Carbon Exchange and Sequestration Potential Ariane Arias Ortiz, Daphne J. Szutu, Joseph G Verfaillie, Tianxin Wang, Robert Shortt ,Adina Paytan  and Dennis D Baldocchi

 GC51L-0762Dynamic Methane Emission Responses to Wetland Restoration Kyle B Delwiche, University of California Berkeley, Berkeley, CA, United States, Maoya Bassiouni, SLU Swedish University of Agricultural Sciences Uppsala, Uppsala, Sweden, Dennis D Baldocchi, University of California, Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, United States and Trevor F Keenan, L

 A13M-2350Evaluating Urban VOC Emission Sources Using Eddy Covariance Flux Measurements in Berkeley, California Erin Katz , Caleb Arata 1 , Eva Y. Pfannerstill 2 , Robin J Weber 3 , Daphne J. Szutu 1 , Joseph G Verfaillie 4 , Dennis D Baldocchi 5  and Allen H Goldstein 1 , (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California, Berkeley, Berkeley, United States, (3)University of California, Berkeley, United States, (4)University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States, (5)University of California, Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, United States

 B41D-03Leveraging ground lidar to measure forest canopy structure, and model its effects on canopy reflectance Martin Beland, Laval University, Quebec City, QC, Canada, Hideki Kobayashi, JAMSTEC Japan Agency for Marine-Earth Science and Technology, RIGC, Kanagawa, Japan and Dennis D Baldocchi,

B42B-02Detection and Attribution of Dryland Respiration Pulses in Eddy Covariance Measurements Ngoc Bao Nguyen 1 , Mirco Migliavacca 2 , Julia K. Green 3 , Maoya Bassiouni 1 , Laureano Gherardi 1 Dennis D Baldocchi 1 , Trevor F Keenan 1,4 , Dario Papale 5  and Alessandro Cescatti 6 , (1)

 B43H-2657Quantifying the variation between site-specific soil water retention curves and the importance of soil water potential for predicting ecosystem flux Daniel Patrick Beverly 1 , Alex Crookshanks 1 , Sebastien Biraud 2 , Dennis D Baldocchi 3 , Gil Bohrer 4 , Steven Kannenberg 5 , Marcy E Litvak 6 , Russell Scott 7 , Jeffrey D Wood 8 , Christopher J Still 9 , Beverly Elizabeth Law 10 , Chad V Hanson 10 , Linnia R Hawkins 11 , Richard P Phillips 12  and Kimberly A Novick

 B44C-05Don't be a drag, just be a queen: the reign of surface energy balance under advection Tianxin Wang 1 , Joe Alfieri 2 , Kaniska Mallick Sr. 3 , Ariane Arias Ortiz 4 , Martha Anderson 5 , Joshua B. Fisher 6 , Manuela Girotto 7 , Daphne J. Szutu 8 , Joseph G Verfaillie 7  and Dennis D Baldocchi 9

IN41C-0599Data attribution: Use cases and challenges from the AmeriFlux perspective You-Wei Cheah 1 , Danielle S Christianson 1 , Gilberto Pastorello 2 , Housen Chu 1 , Fianna O'Brien 2 ,Sy Toan Ngo 1 , Stephen Chan 2 , Sigrid Dengel 1 , André Santos 1 , Christin Buechner 1 , Dario Papale 3,Dennis D Baldocchi 4 , Sebastien Biraud 2 , Deb Agarwal 1  and Margaret S Torn 2 ,

 B34C-07Summer aridity decouples growth from carbon assimilation in temperate oaks Mukund Palat Rao 1 , Arturo Pacheco-Solana 2 , Johanna Jensen 3 , Rong Li 4 , Kevin Lee Griffin 5 , Neil Pederson 6 , M. Luke McCormack 7 , Joseph G Verfaillie 8 , Xi Yang 9 , Dennis D Baldocchi 10 , Laia Andreu-Hayles 11 , Bar Oryan 12 , Jeremy Hise 13 , Troy Nixon 14 , Milagros Rodriguez-Caton 15 , Alexander J Turner 16 , Jan Eitel 17 , Atefeh Hosseini 18 , Zoe Pierrat 19 , Josep Penuelas 1  and Troy Magney 20 , (1)

B44C-07: Pixel-Wise Footprint Analysis of GPP Using High-Resolution NDVI/NIRv Data Robert Shortt, University of California Berkeley (First Author, Presenting Author), Joe Verfaillie, Ariane Arias Ortiz, Kyle Delwiche, Dennis Baldocchi

Publications 

Jessica L. Richardson, Ankur R. Desai, Jonathan Thom, Kim Lindgren, Hjalmar Laudon, Matthias Peichl, Mats Nilsson, Audrey Campeau, Järvi Järveoja, Peter Hawman, Deepak R. Mishra, Dontrece Smith, Brenda D’Acunha, Sara H. Knox, Darian Ng, Mark S. Johnson, Joshua Blackstock, Sparkle L. Malone, Steve F. Oberbauer, Matteo Detto, Kimberly P. Wickland, Inke Forbrich, Nathaniel Weston, Jacqueline K. Y. Hung, Colin Edgar, Eugenie S. Euskirchen, Syndonia Bret-Harte, Jason Dobkowski, George Kling, Evan S. Kane, Pascal Badiou, Matthew Bogard, Gil Bohrer, Thomas O’Halloran, Jonny Ritson, Ariane Arias-Ortiz, Dennis Baldocchi, Patty Oikawa, Julie Shahan & Maiyah Matsumura 2023: On the Relationship Between Aquatic CO2 Concentration and Ecosystem Fluxes in Some of the World’s Key Wetland Types. Wetlands, 44, 1.  https://doi.org/10.1007/s13157-023-01751-x

Nice collaboration with 5 Biometters as co authors

 Research 

Former Postdocs, Kuno Kasak and Ariane Arias-Ortiz, are in town and are leading field soil sampling surveys at the Delta sites to get new infomoration on links between soil chemistry,methane and N2O emissions and the genomics of the soils

Visitors 

Dr Yun Yang from Mississippi State visited and discussed her work on remote sensing of evaporation.

Prof. Paul Moorcroft from Harvard is stopping by pre AGU.

Kuno Kasak is in town from Tartuu, Estonia

Ariane Arias Ortiz in in town from Barcelona

Welcome all

November

Education-Outreach 

Lectured on the Physics and Ecology of mining CO2 from the atmosphere by plants to Andy van Looke Agronomy 180 class at Iowa State https://catalog.iastate.edu/search/?P=AGRON%20180

Robert Shortt,Daphne Szutu and ddb visited a science class at Antioch High School and gave a lecture on the Delta and our work there.  The program is sponsored by https://www.biotechpartners.org/

ddb gave a presentation on the Delta and our wetland carbon flux measurements to the Rossmoor Rotary club

Meetings 

Robert Shortt is attending the https://conference.cerf.science/ in Portland. He will give a talk on Evaluating indices at various spatial scales: An exploration of canopy phenology using flux footprints

 ddb gave a presentation at the Legislative Delta Tour. Organized by the Delta Stewardship Council, Delta Watermaster, Delta Conservancy and Delta Protection Commission November 15, 2023

Publications 

Bansal, S., Creed, I.F., Tangen, B.A., Bridgham, S.D., Desai, A.R., Krauss, K.W., Neubauer, S.C., Noe, G.B., Rosenberry, D.O., Trettin, C., Wickland, K.P., Allen, S.T., Arias-Ortiz, A., Armitage, A.R., Baldocchi, D., Banerjee, K., Bastviken, D., Berg, P., Bogard, M., Chow, A.T., Conner, W.H., Craft, C., Creamer, C., DelSontro, T., Duberstein, J.A., Eagle, M., Fennessy, M.S., Finkelstein, S.A., Göckede, M., Grunwald, S., Halabisky, M., Herbert, E., Jahangir, M.M.R., Johnson, O.F., Jones, M.C., Kelleway, J.J., Knox, S., Kroeger, K.D., Kuehn, K.A., Lobb, D., Loder, A.L., Ma, S., Maher, D.T., McNicol, G., Meier, J., Middleton, B.A., Mills, C., Mistry, P., Mitra, A., Mobilian, C., Nahlik, A.M., Newman, S., O’Connell, J.L., Oikawa, P., Post van der Burg, M., Schutte, C.A., Song, C., Stagg, C.L., Turner, J., Vargas, R., Waldrop, M.P., Wallin, M.B., Wang, Z.A., Ward, E.J., Willard, D.A., Yarwood, S., and Zhu, X. 2023. Practical guide to measuring wetland carbon pools and fluxes. Wetlands 43:105 https://doi.org/10.1007/s13157-023-01722-2 

Staff News 

Ddb is among Clarivarates highly cited scientists in 2023. More important is that two of our alumni, Youngryel Ryu and Josh Fisher, joined this list too.. congratulations.  Great to see Biometlab members producing highly impactful papers, which are among the top 1% of their field for the year published going back a decade

Submissions  

Submitted a Nature Water News and Views article on 'Towards Sharing Water Better, With Near-Real Time Maps on Evaporative Water Use by Crops and Natural Vegetation with Kanishka Mallick.  It was for a review of a pending paper on the OpenET project 

Submitted AmeriFlux: Its Impact on our Understanding of the ‘Breathing of the Biosphere’, circa 2023; has been received by Agricultural and Forest Meteorology. AGRFORMET-D-23-01759. With Kim Novick, Trevor Keenan and Margaret Torn. It is an invited review for the 60th anniversary of AgForMet

Arias Ortiz et al Methane Fluxes in Tidal Marshes of the Contiguous United States: A Synthesis of Fluxes and Analysis of Predictor Variables. Global Change Biology GCB 23-2857

Multiple microbial guilds mediate soil methane cycling along a wetland salinity gradient" by Wyatt Hartman, Clifton Bueno de Mesquita, Susanna Theroux, Connor Morgan-Lang, Dennis Baldocchi, and Susannah Tringe [Paper #mSystems00936-23R2] Accepted!!!!

Visitors 

Jo Owens a graduate student from the Centre for Applied Climate Sciences, University of Southern Queensland, Australia. She is involved with the Australian TERN program and OZflux. We took her on a tour to Tonzi and Vaira ranches and she gave a lab seminar on her work in the savanna of Australia.

Einara Zahn from Princeton stopped to visit.  She is a recent Phd Eli Bou-Zeid environmental fluid mechanics lab http://efm.princeton.edu/ She focuses on LES, ET flux partitioning, variance method etc.  She is based in Palo Alto https://engineering.princeton.edu/princeton-engineer/einara-zahn

October

Meetings  

The Ameriflux annual meeting is being held at Harvard Forest. Robert Shortt is in attendance and Daphne and ddb are joining virtually.  Great to see many alumni at the meeting and giving presentations or leading sessions (Jackie Hatala Mathes, Sara Knox, Patty Oikawa, Rodrigo Vargas, Housen Chu, Alex Valach).

Robert Shortt gave a poster presentation on Pixel-Wise Footprint Analysis of GPP Using High-Resolution NDVI/NIRv Data Robert Shortt [1], Dennis Baldocchi [1], Joseph Verfaille [1]

After the meeting he went to Columbia and gave this presentation at the Pierre Gentine lab

 Carlos Wang is attended the Ecostress meeting in Ventura and gave a presentation on Chasing closure, advection schemes: want that Bad Romance in the atmospheric

Robert and ddb attended the Delta Science Independent Science board meeting in Sacramento.

Ddb served on the biogeochemical process panel discuss group and gave a 10 minute presentation on our greenhouse gas work with regards to stopping and reversing subsidence.

Publications 

Ruehr, S., M. Girotto, J. G. Verfaillie, D. Baldocchi, A. Cabon, and T. F. Keenan (2023), Ecosystem groundwater use enhances carbon assimilation and tree growth in a semi-arid Oak Savanna, Agricultural and Forest Meteorology, 342, 109725, doi:https://doi.org/10.1016/j.agrformet.2023.109725.

Staff News 

Arman Ahmadi joined the Biomet lab as a new postdoc.Arman just received his PhD from UC Davis, specializing in water use of crops based on CIMIS data. He is expert in machine learning and will bring new skills and insights to the lab. Welcome Unfortunately, Atefeh Hosseini is taking a permanent job at Campbell. So she will not be joining the lab as expected

Visitors 

Gordon Bonan from NCAR was in town and stopped to visit. Had a lively conversation on clumping, philosophy of modeling land atmosphere interactions and writing textbooks. Got him to sign my 2 copies of Bonan books

September

Education-Outreach 

Our Dutch Slough work was covered in a recent article in the San Jose Mercury News https://www.mercurynews.com/2023/09/06/restored-delta-tidal-marsh-fights-climate-change-and-attracts-wildlife-native-species/ and this article even got a mention in the NY Times https://www.nytimes.com/2023/09/15/us/california-love-letters.html?searchResultPosition=1

Publications 

Chu, Housen, Danielle S. Christianson, You-Wei Cheah, Gilberto Pastorello, Fianna O’Brien, Joshua Geden, Sy-Toan Ngo, Rachel Hollowgrass, Karla Leibowitz, Norman F. Beekwilder, Megha Sandesh, Sigrid Dengel, Stephen W. Chan, André Santos, Kyle Delwiche, Koong Yi, Christin Buechner, Dennis Baldocchi, Dario Papale, Trevor F. Keenan, Sébastien C. Biraud, Deborah A. Agarwal, and Margaret S. Torn. 2023. 'AmeriFlux BASE data pipeline to support network growth and data sharing', Scientific Data, 10: 614. https://doi.org/10.1038/s41597-023-02531-2

Submissions 

Alternating Conditional Expectations: A Non-Parametric Statistical Method to Interpret Long-term Greenhouse Gas Flux Measurements over Natural Ecosystems. Dennis Baldocchi and Ariane Arias Ortiz, JGR Biogeoscience 

How advection affects the surface energy balance and plays a role in its closure at an irrigated alfalfa field Tianxin Wang, Joseph Alfieri, Kanishka Mallick, Ariane Arias Ortiz, Martha Anderson, Joshua Fisher, Manuela Girotto, Daphne Szutu, Joseph Verfaillie, and Dennis Baldocchi. Agricultural and Forest Meteorology

Visitors

Jiangong Liu, from Columbia, gave a lab seminar on circadian rhythms in plants and how it affects CO2 fluxes. He introduced us to Shapley functions as a non parametric method to quantify isolated response functions of multivariate responses.

Jordi Vila from Wageningen stopped by to visit on his way to a workshop at UC Davis. Always fun to talk science and exchange ideas

Alex Knohl had his last day of his sabbatical in the Biomet lab. He returns to Goettingen and back to the real world.  Having Alex in the lab for nearly 3 months was inspirational to the students and postdocs; working on oil palm, deciduous forests, CO2, H2O and O2 fluxes.  We all learned a lot from Alex during his visit and look forward to future collaborations.

August

Education-Outreach 

Our research and outreach with the Dutch Slough and Knightsen school was profiled by the Delta Council https://deltacouncil.ca.gov/blogs/extending-the-impact-of-research-beyond-the-science-itself

Publications 

Klinek, Lily, Jessie Au, Christopher Y. S. Wong, Troy S. Magney, and Dennis Baldocchi. 2023. A soil-air temperature model to determine the start of season phenology of deciduous forests Agricultural and Forest Meteorology, 341: 109638. https://doi.org/10.1016/j.agrformet.2023.109638

Research 

Robert organize the second acquisition of LIDAR data from across our delta wetland site. This is the green season The new LICOR CO2/CH4 soil gas exchange system arrived and the team made some initial measurements at our field sites.

NKIRA has set up their novel H2O sensor at our alfalfa site. We will compare its performance with our LICOR open path NDIR.  This project is supported by a SBIR NKIRA has from DOE https://www.sbir.gov/sbirsearch/detail/2282969

fyi

The analyzers use tunable diode laser absorption spectroscopy to make real-time, first-principles measurements of both parameters with no memory effects. The prototype, which measured 30 x 17 x 20 cm, weighed 2.2 kg, and used < 10 Watts, provided a precision of better than ±15 ppm and ±0.24 K (1?, 100 Hz) for gas concentration and temperature respectively with excellent linearity. 

Submissions 

Coupling between lateral and vertical CO 2 exchange in some of the world’s key wetland types. Turner, J., Desai, A.R., Thom, J., Lindgren, K., Laudon, H., Peichl, M., Nilsson, M., Campeau, A., Järveoja, J., Hawman, P., Mishra, D.R., Smith, D., D’Acunha, B., Knox, S.H. , Ng, D. Johnson, M.S., Blackstock, J., Malone, S. L., Oberbauer, S.F., Detto,M., Wickland, K.P., Forbrich, I., Weston, N., Hung, J.K.Y., Edgar, C., Euskirchen, E.S., Bret-Harte, S., Dobkowski, J.,  Kling, G., Kane, E.S., Badiou, P., Bogard, M., Bohrer, G., O’Halloran, T. 19 , Ritson, J., Arias-Ortiz, A., Baldocchi, D. , Oikawa, P., Shahan, J. Wetlands 

AmeriFlux BASE data pipeline to support network growth and data sharing. Scientific Data. Housen Chu, Danielle S. Christianson, You-Wei Cheah, Gilberto Pastorello, Fianna O’Brien, Joshua Geden, Sy-Toan Ngo, Rachel Hollowgrass, Karla Leibowitz, Norman F. Beekwilder, Megha Sandesh, Sigrid Dengel, Stephen W. Chan, André Santos, Kyle Delwiche, Koong Yi, Christin Buechner 1 , Dennis Baldocchi, Dario Papale, Trevor F. Keenan, Sébastien C. Biraud, Deborah A. Agarwal, and Margaret S. Torn

Visitors

Alex Knohl from Goettingen Univ gave a wonderful seminar to the lab on his work on carbon, N2O, CH4 and energy fluxes over oil palm plantations in Indonesia.  Also made connections to social and land use issues.  Check out his work. Lots of first rate pubs 

Jose Fuentes, from Penn State, will be resident in the Biomet and DOdorico Labs for this semester, while he is a Miller Fellow

Jiangong Liu, from Columbia and Pierre Gentine lab, is in residence. Jiangong was a former visiting student from Hong Kong, working on methane exchange of mangrove. He is now using machine learning methods to student fluxnet data

July

Education-Outreach 

Posted Berkeley Blog on Reflections on the Weather Mayhem of the Summer of 2023

https://blogs.berkeley.edu/2023/07/28/reflections-on-the-weather-mayhem-of-the-summer-of-

2023-we-told-you-so-now-what/

Gave lecture on Pninciples and Fundamentals of Water for the Bearhs Environmental Leadership

Program, on campus. About 30 students, early to mid career environmental managers and

practiioners were in attendance from all over the world

Meetings edit | delete

ddb attended zoom meeting on Oak Woodland Conservation Workgroup Meeting

Fluxnet Meeting Brno, Czech Republic

Robert Shortt and Kyle Delwiche attended and gave either talks or posters

Opportunities for Pixel-Wise Footprint Analysis Using High-Resolution Drone Data

Robert Shortt (E)

Information flows to elucidate methane flux dynamics in restored wetlands. Delwiche, Kyle

(kdelwiche@berkeley.edu); Bassiouni, Maoya; Baldocchi, Dennis; Keenan, Trevor University of

California, Berkeley, USA)

Kanisk Mallick attended the IGARSS meeting in Pasadena and gave a presentation

MO1.R6.2: Putting Biology with Physics in Thermal Remote Sensing of Terrestrial

Evaporation and Implications for the Future LST Missions

Kanishka Mallick, Tian Hu, Mauro Sulis, Patrik Hitzelberger, Christian Bossung, Luxembourg

Institute of Science and Technology, Luxembourg; Dennis Baldocchi, Tianxin Wang, Joseph

Verfaillie, Daphne Szutu, University of California, Berkeley, United States; Gilles Boulet, Jean-

Louis Roujean, CESBIO, France; Albert Olioso, INRAE, France; Philippe Gamet, CNES,

France; Chiara Corbari, Marco Mancini, POLIMI, Italy; Hector Nieto, ICA, Spain; Nishan

Bhattarai, University of Oklahoma, United States; Zoltan Szantoi, European Space Agency,

Italy; Bimal Bhattacharya, Space Applications Centre, India; Glynn Hulley, Madeleine

Pascolini-Campbell, Kerry Cawse-Nicholson, Simon Hook, NASA, JPL, United States

ddb attended, virtually, the national meeting of directors for the Cooperative Ecosystems Study

Unit, held in West Virgina.

ddb participated in the meeting on New Horizons in Environmental Mechanics, a Festschrift

in Honour of John Finnigan, held in Boulder, CO at NCAR. He gave a presentation on Land

Atmosphere Interactions

ddb particiapated in the ANR Program Council Meeting at the Southcoast research and extension

center, Irvine, CA

Kaniska Mallick gave an Ameriflux Webinar on Link between flux and optical measurements

Submissions edit | delete

Lily Klinek, Jessie Au, Christopher YS Wong, Troy S Magney, Dennis Baldocchi A soil-air

temperature model to determine the start of season phenology of deciduous forests. Agricultural

Forest Meteorology, revised

Sheel Banshel et al. Practical Guide to Measuring Wetland Carbon Pools and Fluxes Wetlands,

Accepted

June

Education-Outreach edit | delete

D. Baldocchi met with legistaltive aids of Congresswomen Matsui, from Sacramento, Alia

Hidayat and Adam Mc Bride, to provide scientific background about natural climate solutions,

wetlands, methods of assessment etc.

Carlos Wang is mentoring Destinee Whitaker, an environmental science major, from Spelman

College as part of the summer Research research program for Historically Black College and

University Research Experience for Undergraduates

https://e3s-center.berkeley.edu/education-diversity/education/undergraduate/hbcu-reu-summer-

research-experience-hbcu-undergraduates/

ddb attended the Colorado Flux Course at Nederland/Niowt Ridge, CO and lectured on the

principles of eddy covariance.

Robert, Daphne and Kyle are giving a presentation to Cal EPA in San Francisco about our

wetland Delta work for greenhouse gas mitigation

Meetings edit | delete

Ddb attended Harvard Continental Climate Workshop June 15-16, 2023 and gave a presentation

on Measuring and interpreting eddy covariance flux measurements on field to landscape scales

Publications edit | delete

Tianxin Carlos Wang is a coauthor on

Volk, J. M., J. L. Huntington, F. Melton, B. Minor, T. Wang, S. Anapalli, R. G. Anderson, S.

Evett, A. French, R. Jasoni, N. Bambach, W. P. Kustas, J. Alfieri, J. Prueger, L. Hipps, L.

McKee, S. J. Castro, M. M. Alsina, A. J. McElrone, M. Reba, B. Runkle, M. Saber, C. Sanchez,

E. Tajfar, R. Allen, and M. Anderson. 2023. 'Post-processed data and graphical tools for a

CONUS-wide eddy flux evapotranspiration dataset', Data in Brief, 48: 109274.

Submissions edit | delete

Kaniska Mallick, Ph.D, Joseph Verfaillie, Tianxin Wang, Ariane Arias Ortiz, Daphne

Szutu, Robert Shortt, Tian Hu, Mauro Sulis, Zoltan Szantoi, Gilles Boulet, Joshua Fisher,

Dennis Baldocchi. 2023 Enigma of Photosynthetically Active Radiation in Assessing

Vegetation Index, Near- infrared Reflectance, and Productivity Variability Across Ecosystems

and Climatic Gradients Remote Sensing of the Environment

Housen Chu, Danielle S. Christianson, You-Wei Cheah, Gilberto Pastorello, Fianna O’Brien,

Joshua Geden, Sy-Toan Ngo, Rachel Hollowgrass, Karla Leibowitz, Norman F. Beekwilder,

Megha Sandesh, Sigrid Dengel, Stephen W. Chan, André Santos, Kyle Delwiche, Koong Yi,

Christin Buechner, Dennis Baldocchi, Dario Papale, Trevor F. Keenan, Sébastien C. Biraud ,

Deborah A. Agarwal, and Margaret S. Torn,AmeriFlux BASE data pipeline to support network

growth and data sharing. Scientific Data

Visitors edit | delete

Sebastian Wolf, from ETH Zurich, is stopping by for his annual visit as he goes up to Sagehen

field site in the Sierra and services his site

Alexander Knohl from Georg August Universitat Goettingen has arrived and will spend his

summer sabbatical in the biomet lab.

May

Education-Outreach edit | delete

The Biomet Lab is featured in the Rausser College of Natural Resources Spring Breakthroughs

Magazine in its story on the Future of Water

https://nature.berkeley.edu/breakthroughs/sp23/future-of-water

Meetings edit | delete

Carlos Tianxin Wang is attending the Ameriican Meteorological Society 35th Agricultural and

Forest Meteorology meeting in St Paul, MN

https://ams.confex.com/ams/35AF14F6BG/cfp.cgi

 Robert Shortt and ddb attended Coastal Wetlands Restoration project annual meeting at UC

Santa Cruz that is funded by uc lab fees wetland project

 https://wetlands.ucsc.edu/people.html

Kyle Delwiche and DDB participated on the web meeting by SFEI on Activating science and

management communities for blue carbon solutions

Kaniska Mallick attended the International Workship on High Resolution Thermal Earth

Observation 2023 meeting in Rome and gave an oral presentation. Consort of Conductances: The

Missing Biophysical Link in Thermal Remote Sensing of Terrestrial Evaporation and Inclusion

for the Future LST Missions

Author: Mallick, Kaniska; Baldocchi, Dennis; Hu, Tian; Wang, Tianxin; Verfaillie, Joseph;

Szutu, Daphne; Boulet, Gilles; Olioso, Albert; Gamet, Phillippe; Roujean, Jean-Louis; Sulis,

Mauro; Hitzelberger, Patrik; Bossung, Christian; Corbari, Chiara; Mancini, Marco; Nieto,

Hector; Bhattarai, Nishan; Szantoi...

D Baldocchi participated in a International Land Atmosphere Benchmarking Meeting over zoon

Visitors edit | delete

Nice surprise to see Prof. Youngryel Ryu drop by to visit. He was in the City for a remote

sensing workshop

April

Education-Outreach edit | delete

The Biomet lab(Daphne, Kyle, Robert and Dennis) hosted over 60 5th grade science students

from Knightsen and Old River Elementary schools for a Delta Wetland field trip.  We discussed

about soil and peat, carbon cycle, plants, animals, birds and insects, the geography of the delta

and had sensors to measure salinty across the estuary. All lots of fun.  Tara Duggan from the

Chronicle also joined us and may feature a story on the students and wetlands

 field trip and Dutch Slough was featured in the SF Chronicle

Why the Bay Area is home to one of the most effective carbon sinks in the world

https://www.sfchronicle.com/climate/article/dutch-slough-wetland-carbon-17883469.php

we were also featured on KGO Abc news

https://abc7news.com/dutch-slough-contra-costa-county-bay-area-tidal-marsh-battle-

against-climate-change-co2-emissions/13151340/

And a 5 minute interview on KCBS

https://omny.fm/shows/kcbsam-on-demand/a-carbon-sink-in-the-east-bay-moves-

california-tow 

ddb gave presentation about our Hill Slough wetland and flux tower to the Suisun Marsh Spring

Landowner Workshop and SRCD 60th Anniversary during a field trip to Hill Slough and Rush

Ranch (4/20)

Robert and Dennis hosted Andrew Oliphants SF State bioclimatology class (20 students) at the

Dutch Slough field site where we showed them the flux instruments and discussed the geography

of the delta and the wetland restoration (4/22)

Robert represented the lab and gave a presentation of our work at a field trip by senior

environmental managers of the state at Ducth slough..Delta Plan Interagency Implementation

Committee

Publications edit | delete

Anthony, Tyler L., Daphne J. Szutu, Joseph G. Verfaillie, Dennis D. Baldocchi, and Whendee

L. Silver. 2023. 'Carbon-sink potential of continuous alfalfa agriculture lowered by short-term

nitrous oxide emission events', Nature Communications, 14: 1926. 

Staff News edit | delete

 Badicchi is an Environmental Sciences Leader Award for 2023 by Research.com. He is ranked

13th worldwide and 7th in the US

March

Education-Outreach edit | delete

Joe Verfaillie led a show and tell of Berkeley Cragmont 1st and 2nd graders about

meteorological/weather instruments.

Meetings edit | delete

Ddb gave a Masterclaass lecture on Scaling Metabolic Gas Fluxes from Leaf to Globe: A Quest

Towards Estimating Carbon Dioxide and Water Vapor Fluxes Everywhere, All the Time at

Wageningen University.  He also received a Doctor Honoris Causa degree.  The event is on

YouTube https://youtu.be/t7U0S-YtkrE

ddb gave Earth and Planetary Science, EPS colloquium seminar at Harvard on Talk

Title:  Lessons Learned about the Breathing of the Biosphere, from a Californian Network of

Greenhouse Gas Flux Measurement Towers

Publications edit | delete

Wang, Tianxin, Joseph Verfaillie, Daphne Szutu, and Dennis Baldocchi. 2023. 'Handily

measuring sensible and latent heat exchanges at a bargain: A test of the variance-Bowen ratio

approach', Agricultural and Forest Meteorology, 333:

109399.https://doi.org/10.1016/j.agrformet.2023.109399

Yang, Xi, Dennis Baldocchi, and Hualei Yang. 2023. 'Jianwu (Jim) Tang (1970–2023)', Nature

Ecology & Evolution. https://doi.org/10.1038/s41559-023-02032-w

Research edit | delete

Collecting a new set of high resolution lidar and 4 band digital images of our wetland sites.  The

drone is being implemented by ETrac and flies at about 90 m.  Told we are getting 150 hits per

meter square.  This set is over the wind blown, dead tules just at the start of the growing season.

Next set will be summer

February

Education-Outreach edit | delete

Christine Martin, an environmental economic major, working in our lab gave a presentation on

California Climate Indicators, Natural Climate Solutions and links to the Biometlab

Koong Yi organized the Ameriflux Webinar on Year of Remote Sensing.  Carlos Wang gave a

presentation on Google Earth Engine for the Ameriflux Webinar on Remote Sensing

 Kyle, Robert, Daphne and ddb met with the science teachers (Melissa, Joshua and Lois) from

Knightsen and Old River Elementary Schools to plan a field trip in April to Dutch Slough to look

at peat, plants, water and wildlife.

Dennis Baldocchi, with special guest star, Josep Penuelas, spoke to the Berkeley Planty Social

Club on Think like a Tree:Get out in Nature and Touch, Smell and Observe.  It was a fun

experience with a group of bright and energetic plant students

Meetings edit | delete

Robert Shortt ,Kyle Delwiche and DDB attended the Delta Restoration Forum meeting

Visitors edit | delete

Josep Penuelas from CSIC in Barcelona joins the Biometlab for another week visit and

discussions on science, life and the future. First chance to visit since Covid.  He gave a

fascinating lab seminar on his work on whether the C cycle is saturating in a warmer world, with

more CO2, N deposition, land use change, etc, etc

January

Education-Outreach edit | delete

Posted a Berkeley Blog On Sharing Water Better in California

https://blogs.berkeley.edu/2023/01/25/can-we-take-steps-towards-sharing-water-better-in-

california/

Was invited to join Kaiyu Guan's lab meeting at the University of Illinois and discuss results on

evaporation and photosynthesis from Ameriflux and products with remote sensing models, like

BESS and with NIRv

Publications edit | delete

Ueyama, Masahito, Sara H. Knox, Kyle B. Delwiche, Sheel Bansal, William J. Riley, Dennis

Baldocchi, Takashi Hirano, Gavin McNicol, Karina Schafer, Lisamarie Windham-Myers,

Benjamin Poulter, Robert B. Jackson, Kuang-Yu Chang, Jiquen Chen, Housen Chu, Ankur R.

Desai, Sébastien Gogo, Hiroki Iwata, Minseok Kang, Ivan Mammarella, Matthias Peichl, Oliver

Sonnentag, Eeva-Stiina Tuittila, Youngryel Ryu, Eugénie S. Euskirchen, Mathias Göckede,

Adrien Jacotot, Mats B. Nilsson, and Torsten Sachs. 2023. 'Modeled production, oxidation and

transport processes of wetland methane emissions in temperate, boreal, and Arctic regions',

Global Change Biology, DOI: 10.1111/gcb.16594

Volk, John M., Justin Huntington, Forrest S. Melton, Richard Allen, Martha C. Anderson, Joshua

B. Fisher, Ayse Kilic, Gabriel Senay, Gregory Halverson, Kyle Knipper, Blake Minor,

Christopher Pearson, Tianxin Wang, Yun Yang, Steven Evett, Andrew N. French, Richard

Jasoni, and William Kustas. 2023. 'Development of a benchmark Eddy flux evapotranspiration

dataset for evaluation of satellite-driven evapotranspiration models over the CONUS',

Agricultural and Forest Meteorology, 331:

109307. https://doi.org/10.1016/j.agrformet.2023.109307

Research edit | delete

Starting a collaboration with Mark Stacey's Fluid Lab in Civil Engineering and Henry

Lindekugel, a Master's student, to evaluate and analyze velocity and volumetric flows of water in

and out of Dutch Slough with our acoustic doppler profile system.

Staff News edit | delete

Kyle Delwiche will be working in the biomet lab part time on the wetland project. Kyle is also

working on the Fluxnet project in Trevor Keenan's lab and has led the methane synthesis project.

Submissions edit | delete

Sophie Ruehr, Manuela Girotto, Joseph G. Verfaillie, Dennis Baldocchi, Trevor F. Keenan.

Ecosystem groundwater use enhances carbon fixation 2 and tree growth in a semi-arid oak

savanna  Agricultural Forest Meteorology. special issue Amerflux after 25 years

Lily Klinek1, Jessie Au, Christopher YS Wong, Troy S Magney, Dennis Baldocchi. Analyzing

the start of season phenology of North American deciduous forests with carbon flux and digital

camera time series. Agricultural Forest Meteorology. special issue Amerflux after 25 years

Visitors edit | delete

Former postdoc, Martin Beland, from Laval University, http://digitalforestlab.ulaval.ca/, in

Canada, will be in residence for 3 months during his sabbatical. Welcome Martin!

Martin gave a very insightful presentation on foliage clumping and its impact on canopy

photosynthesis to the Biomet lab