Ellyn Enderlin, PhD

Please go to https://sites.google.com/boisestate.edu/cryogarswebsite/home for the latest updates on the activities of the Cryosphere Geophysics And Remote Sensing (CryoGARS) Group at Boise State University.

Ellyn M. Enderlin

Associate Professor

Department of Geosciences

Boise State University

Office: 3167 Environmental Research Building

Email: ellynenderlin@boisestate.edu

https://www.boisestate.edu/earth/people/ellyn-enderlin/

NEW GROUP WEBSITE (AS OF FALL 2023)!!! I post important news to this site every so often, but check out https://sites.google.com/boisestate.edu/cryogarswebsite/home for all the latest from the full CryoGARS Group!

About me: Co-lead of Boise State University's Cryosphere Geophysics and Remote Sensing (CryoGARS) Group

My research aims to advance our understanding of the varying sensitivity of glaciers to climate change so that society is able to prepare for, and hopefully mitigate/minimize, the impacts of glacier loss on the Earth system. Recent and ongoing research projects focus on combining remotely-sensed and in situ observations to develop a better understanding of controls on the flow of marine-terminating glaciers (i.e., glacier dynamics) as well as seasonal snow in mountain regions and on glaciers. I am particularly interested in glacier-ocean interactions, namely submarine melting and iceberg calving, and how changes in these interactions influence the rate of glacier mass loss. My group has conducted a number of projects focused on ice-ocean interactions, including remote sensing projects focused on mapping glacier terminus position change and iceberg melting, as well as numerical modeling of marine-terminating glaciers. My group is part of the larger Cryosphere Geophysics And Remote Sensing (CryoGARS) group in the Department of Geosciences at Boise State University and I collaborate with a number of faculty at Boise State and the University of Idaho. Please contact me if you're interested in joining my group!

I am passionate about getting undergraduate students involved in research so that they leave college with the ability to conduct research and convey their research to the public. I am particularly interested in providing research opportunities to women and other under-represented populations in STEM fields since my undergraduate research experiences are what got me interested in glacier research. In line with my interests in mentoring to promote early-career scientists, I am currently the chair of the Boise State University Department of Geosciences' Graduate Program Committee. If you are a prospective student interested in learning more about my department's graduate programs or a current student with questions you don't want to ask your advisor or that your advisor cannot answer, do not hesitate to reach out to me. I am always happy to talk to students!

I also enjoy giving presentations on glaciers and climate change to middle and high school students (see Outreach tab). If you're a teacher looking for a guest speaker, please contact me!

Group News

Fall 2025 & Spring 2026

I have been on sabbatical this academic year and my group's primary focus has been on wrapping-up projects focused on controls of glaciers surging using in situ and remotely-sensed observations from Sít' Kusá in southeast Alaska and snow mapping across western North America using satellite optical images and lidar. We are also using remote sensing data to study iceberg melting in Greenland's glacier fjords and surging glaciers in High Mountain Asia. Thanks to a collaborative project with NASA and the Geologic Survey of Denmark and Greenland (GEUS), we're also working on creating automated maps of the terrestrial margins of the Greenland ice sheet.

Some highlights are included below but I'm also excited to announce that I am expanding on my group's previous work on automated glacier terminus mapping to integrate optical and Synthetic Aperture Radar (SAR) images thanks to my NASA PECASE award. My group will also be starting expanded work on assessing Alaskan glacier speed seasonality in relation to surface melt through a new NASA Cryospheric Sciences award.

Publications:

K C et al. 2025: Seasonality in terminus ablation rates for the Glaciers in Greenland (Kalaallit Nunaat) (https://doi.org/10.5194/tc-19-3089-2025)
Zikan et al. 2026: Improved workflow for customized ICESat-2 ATL06 elevations captures seasonal mountain snow depths at sub-kilometer scale (https://doi.org/10.5194/egusphere-2025-4813)

Awards:

Aman K C received an Intergovernmental Panel on Climate Change (IPCC) Scholarship
Undergraduate researcher Madelyn Woods received a Fulbright Scholarship to further her expertise on glacier change as a MS student at the University of Waterloo.

Milestones:

Karina Zikan completed an short international exchange at GEUS in Copenhagen, Denmark, in Fall 2025.
Aman K C completed the "Arctic Seismology" course at the University Centre in Svalbard (UNIS) in Spring 2026.
Lindsay Summers successfully defended her MS Geophysics thesis ("Seasonal Subglacial Drainage Evolution Drives Fall Speedups on Alaskan Glaciers") in Spring 2026 and will be continuing in the group as a PhD student.
Parker Wilkerson successfully defended his MS Geosciences thesis ("Observations of Drainage Inefficiencies through Rain Induced Speed Up Events of a Temperate Surging Glacier, AK") in Spring 2026 and is pursuing a career in Geographic Information Systems.

CryoGARS Glaciology at AGU2025.

From left to right: Parker Wilkerson (MS), Lindsay Summers (MS), Ellyn Enderlin (lead), Karina Zikan (PhD), and Aman K C (PhD)

CryoGARS Glaciology annual spring picnic.

From left to right: Karina Zikan (PhD), Madelyn Woods (undergrad), Lindsay Summers (MS), Parker Wilkerson (MS), Ellyn Enderlin (lead), and Aman K C (PhD)

Fall 2024 & Spring 2025

I am really proud of all the terrific students that I've gotten to work with in the last few years and most of the news below focused on their achievements and publications. I am also thrilled to post here that I received a NASA Presidential Early Career Award for Scientists and Engineers (PECASE). It is a tremendous honor! It also brought some added attention from Boise's KTVB and I am excited to have a larger audience hear about why science is important, especially people who may not be directly impacted by glacier change .

Publications:

Liu et al. 2024: Improved records of glacier flow instabilities using customized NASA autoRIFT (CautoRIFT) applied to PlanetScope imagery (https://tc.copernicus.org/articles/18/3571/2024/)
Terleth et al. 2024: Glacier surges and seasonal speedups integrated into a single, enthalpy-based model framework (https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL112514?af=R)
Aberle et al. 2024: Automated snow cover detection on mountain glaciers using space-borne imagery (https://egusphere.copernicus.org/preprints/2024/egusphere-2024-548/)
Aberle et al. 2025: Leveraging Weekly Snow Cover Time Series for Improved Glacier Monitoring and Modeling (https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL115523?af=R)

Awards:

Rainey Aberle and Aman K C received College of Arts and Sciences Graduate Showcase awards.
Rainey Aberle was awarded a university-level Graduating Student Leader Award.
Aman K C received the Geological Society of America "William B. & Dorothy Heroy Research Grant".

Milestones:

Two new graduate students joined our group this fall! Lindsay Summers is pursuing a MS in Geophysics and Parker Wilkerson is pursuing a MS in Geosciences.
Rainey Aberle successfully defended her dissertation this winter and graduated with her PhD in Geophysics in spring 2025! Rainey now works as a researcher at the US Army Corps of Engineers Cold Regions Research and Engineering Laboratory.

Fall 2023 & Spring 2024

This was a busy year for my group and I've summarized our major achievements below. Expect several more papers to be published in 2024!

Publications:

Two papers from Chris Miele's PhD research at the University of Idaho were published: Marginal detachment zones: the fracture factories of ice shelves? and Brief communication: Is vertical shear in an ice shelf (still) negligible?
The group's research on iceberg melting around Antarctica was published with the Journal of Glaciology! We found that iceberg melt rates near the ice sheet and glacier margins are <50 m/yr, which is far less than open ocean melt rates, and that melt sensivity to ocean thermal forcing varies tremendously.
The first of many papers on the surging Sít' Kusá was published in Winter 2024: Propagating speedups during quiescence escalate to the 2020-2021 surge of Sít’ Kusá, southeast Alaska. Using satellite-derived glacier speed and elevation time series, Jukes Liu found that there are seasonal down-glacier-propagating pulses of mass during the quiescent phase that are very similar to surges except that they do not propagate the full length of the glacier. The magnitude and extent of the pulses scale with the previous melt season's cumulative runoff and indicate the glacier is highly dynamic even during quiescence.
UIdaho PhD student Yoram Terleth's paper on seismically-inferred subglacial hydrology at Sít' Kusá ("Transient subglacial water routing efficiency modulates ice velocities prior to surge termination on Sít’ Kusá, AK") was accepted for publication in the Journal of Glaciology.
Jukes Liu and Rainey Aberle's novel automated pipeline's for glacier speed and snow-covered area mapping were submitted to The Cryosphere. Check out the discussion papers!

Awards:

Aman K C was awarded a university-level Graduating Student Leader Award as well as a Bronco Spirit Award for doing a terrific job representing the ideals of the university!
Alexandra Friel was awarded a university-level Graduating Student Leader Award.

Milestones:

Aman K C successfully defended his thesis and received his Master in Geoscience degree in December 2023. Undergraduate researchers Adam Dickson and Alexandra Friel also received their Bachelor of Geoscience degrees with emphases in Geophysics in December 2023.
Congrats to Karina Zikan, who passes her preliminary exams for her PhD in Geophysics in Fall 2023 and successfully defended her dissertation proposal in Spring 2024.
A huge congrats to Jukes Liu and Chris McCaslin, who graduated with their PhDs in Geophysics in Spring 2024. Jukes was Ellyn's first PhD graduate!!!

Spring 2023

Lots of news and announcements for the CryoGARS Glaciology team this semester! A big thanks to all the students who make this an awesome group. Their hard work, passion for science, collegiality, and positive attitudes are what make everyone in the group successful!

Publications:

Rainey Aberle's MS thesis research on the sensitivity of Crane Glacier, East Antarctic Peninsula, to climate following the collapse of the Larsen B ice shelf was published with the Journal of Glaciology!
Ellyn co-authored a publication on application of the Non-hydrostatic Unified Model of the Ocean (NUMO) to ice melting, led by Mathematics' Associate Professor Michal Kopera and Computing PhD student Yao Gahounzo.

Awards:

Karina Zikan was awarded a National Science Foundation Graduate Research Fellowship to continue her PhD research on remote sensing of mountain snow using primarily NASA's ICESat-2.
Rainey Aberle was awarded a Department of Defense Science, Math, and Research for Transformation (SMART) fellowship to continue her PhD research on spatial and temporal variations in mountain snow and glacier ice extents using a variety of satellite remote sensing datasets. Rainey also received an award for an outstanding presentation at the Boise State Graduate Student Showcase.
Maddie Gendreau was named one of Boise State's top ten undergraduates to graduate in 2023.
Aman KC was awarded the Geological Society of America's Arthur D. Howard award for outstanding MS students.

Milestones:

Ellyn's early application for tenure was approved and she has been promoted to an Associate Professor!!!
Congrats to Maddie Gendreau and Phoebe Kinzelman, who graduated with Bachelors of Science in Hydrologic Sciences and Masters of Earth Science degrees, respectively.
Congrats to Rainey Aberle who passed her comprehensive exams and has advanced on to PhD candidacy.

CryoGARS Glaciology Group at the Spring 2023 end-of-semester party. From top left to bottom right: Aman KC, Adam Dickson, Karina Zikan, Rainey Aberle, Chris McCaslin, Alexandra Friel, Alex Iturriria, Chase Chivers, Freddie (black lab), Isabella Welk, Ellyn Enderlin with sons Tyler (on lap) and Winnie (front), Jukes Liu, Phoebe Kinzelman, and Suzi (brown lab).

Ellyn Enderlin & Maddie Gendreau at the Boise State University Top Ten honors ceremony. Ellyn and Maddie wons awards for outstanding mentor and graduating student.

Maddie Gendreau and Ellyn Enderlin at Boise State University Spring Commencement 2023.

Congratulatory coffee mug from the CryoGARS Glaciology students to celebrate Ellyn's promotion to Associate Professor with tenure. The mug photo is from fieldwork in "bear heaven" along the lateral margin of Sít' Kusá in southeast Alaska in August 2022. The bug net was needed!

Fall 2022

CryoGARS Glaciology has been busy this year! PhD student Jukes Liu published a paper on the synchronous retreat of peripheral marine-terminating glaciers in SE Greenland that was detected using her novel automated glacier terminus mapping code package and MS alumnus Kate Bollen (now at USGS) had her thesis research on dynamic mass loss from Greenland's peripheral marine-terminating glaciers published as well!

Check out all the info on the group's American Geophysical Union Fall Meeting presentations below along with some photos from the meeting!

Photo caption: CryoGARS Glaciology at the annual winter party. From left to right, top to bottom: Rainey Aberle, Aman KC, Adam Dickson, Karina Zikan, Maddie Gendreau, Phoebe Kinzelman, Jukes Liu, Ellyn Enderlin with Winnie and Tyler (on lap). Suzi (brown lab) and Freddie (black lab) also squeezed in.

The highlight of AGU was interacting with so many student, past (at UMaine) and present (at Boise State), who have been a part of this group! From left to right: Karina Zikan, Emily Miller, Aman KC, Jessica Scheick, Andrew Nolan, Ellyn Enderlin, Jukes Liu, Maddie Gendreau, Rainey Aberle, and Mariama Dryak.

Winter/Spring 2022

This was a productive semester for student publications! A big congrats to:
- PhD student Jukes Liu for an accepted publication in Geophysical Research Letters detailing results of the application of the automated glacier terminus mapping algorithm from her MS thesis to southeast Greenland's oeripheral glaciers "Synchronous retreat of southeast Greenland’s peripheral glaciers"
- PhD student Karina Zikan for an accepted publication in the Journal of Glaciology detailing her undergraduate research on snow mapping
- former MS student Kate Bollen (now at USGS) for an accepted publication in the Journal of Glaciology describing her thesis research on changes in iceberg discharge from Greenland's peripheral marine-terminating glaciers "Dynamic mass loss from Greenland’s marine-terminating peripheral glaciers (1985-2018)"
Congrats to Jukes Liu and Karina Zikan for winning the Top Honor and Dean's awards, respectively, for posters on their dissertation research: https://www.boisestate.edu/earth/2022/04/18/congrats-to-jukes-liu-greg-shafer-and-karina-zikan-for-winning-graduate-student-showcase-awards/
Congrats to Phoebe Kinzelman for a successful thesis proposal defense! Phoebe's MS Geosciences thesis will be titled "Characterization of terminus position change for Greenland’s peripheral marine-terminating glaciers: 2000 - present"
Keep on the look-out for presentations by graduate students Jukes Liu, Rainey Aberle, Karina Zikan, Phoebe Kinzelman, and Aman K C at upcoming International Glaciological Society symposia. PDFs of posters will be displayed here after the symposia!

Congrats to another great year with my awesome students. From right to left in the group photo below: Aman K C, Maddie Gendreau, Rainey Aberle, Karina Zikan, Alexandra Friel, me + my kids, Adam Dickson, Jukes Liu, and Phoebe Kinzelman.

Fall 2021

Welcome to new PhD Geophysics student Karina Zikan, MS Geoscience students Phoebe Kinzelman and Aman K C, and undergraduates Adam Dickson and Alexandra Friel!
PhD students Jukes Liu and Rainey Aberle presented on their research and filled in as in-person chairs in the "Icebergs: Origin, Decay, and Everything In Between" sessions at the AGU Fall Meeting. Jukes' poster ("The recent surge of Sit' Kusá (Turner Glacier), Alaska: New Insights on Surge Kinematics from Sentinel image processing") described velocities and seismic data for Sit' Kusá during its most recent surge. Rainey's talk ("Modeling glacier stability following the 2002 Larsen B ice shelf collapse, Antarctic Peninsula") summarized Rainey's numerical modeling of Crane Glacier's recent advance and projected sensitivity to climate forcing. Jukes also presented Ellyn's research poster ("Insights on Calving Processes from Fragmentation Theory Applied to Iceberg Size Distributions")
Kate Bollen, former MS Geophysics student and current USGS employee, presented her thesis research on dynamic mass loss from Greenland's peripheral marine-terminating glaciers during her AGU talk ("Dynamic mass loss from Greenland's peripheral glaciers from 1985-2018") and will be published in Journal of Glaciology in 2022.
Ellyn and 4 graduate students (Jukes, Rainey, Karina, and Phoebe) completed Wilderness First Responder training in November to help ensure safety of the group when completing fieldwork in snowy and/or glacierized regions and when enjoying the great outdoors outside of work! See photos below...

Practicing treating major bleeds.

Splinting an unstable ankle

Phoebe really enjoying a hypothermia package

Jukes looking a little less thrilled about the hypothermia package

Winter/Spring 2021

Even though I welcomed a new addition to my family on January 10th (Tyler Jacob Enderlin) and I was on maternity leave for most of the semester, my students continued to make great research progress! Some highlights are listed below, including links to some recent publications and presentations.

Congrats to undergrad intern Rebecca Muhlheim for winning an American Geophysical Union Outstanding Student Presentation Award for her research on Greenland's peripheral glaciers.
Congrats to Andrew Nolan and Jukes Liu on the publication of their Honors undergraduate and MS theses research projects, respectively.
Welcome to new undergraduate research assistant Maddie Gendreau!
Check out undergraduate research assistant Caitlin Oliver's work on Antarctic iceberg melting at the Boise State Undergraduate Research Showcase on Friday, April 23rd. More info here: https://sites.google.com/boisestate.edu/urs2021
Check out the research of my 4 graduate students at the Boise State Graduate Research Showcase on April 7th-9th. More info here: https://www.boisestate.edu/graduatecollege/gss/ Congrats to Rainey and Jukes for winning Deans awards for their presentations!

(above) Rebecca Muhlheim's OSPA-winning AGU poster.

(right) Caitlin Oliver's research showcase poster.

Colten Elkin MS Thesis Defense

Colten successfully defended his thesis on March 3rd. Congrats!! A recording of his defense can be accessed here.

Rainey Aberle MS Thesis Defense

Kate Bollen MS Thesis Defense

I had the privilege of giving an invited seminar about my research on icebergs as part of the University of Minnesota Polar Geospatial Center's Users Webinar Series at the end of September and that video has now been posted on Youtube. If you want to hear about why I have been using high-resolution commercial satellite images to analyze iceberg elevations, I encourage you to check out the video!

My group focuses on developing an improved understanding of modern changes to the Earth's cryosphere. Although I am a glaciologist and most of my research has focused on glacier change, I also have been analyzing iceberg elevation data as a means to infer changes in ice-ocean interactions near glacier margins and I have new projects that also explore the use of a variety of tools to improve estimates of snow depth on and off glaciers in mountain regions.

Check out the Polar Literacy website: https://polar-ice.org/polar-literacy-initiative/. There are several video interviews with early career scientists, interactive data stories that can be worked into classroom activities (https://polar-ice.org/polar-data-stories/), and a number of other resources!

I was selected to work with a large interdisciplinary group focused on Polar Literacy (primarily run by Rutgers and Ohio State) and was able to create this AWESOME video explaining my work and how I got interested in studying glaciers. Apologies for the horrid background in my at-home temporary office due to covid-related campus closures! My research fits under Polar Literacy Principle #2: ICE IS THE DOMINANT FEATURE OF THE POLAR REGIONS.

Fall 2020

With the upheaval in normal academic lives caused by covid, I never updated the page to reflect all my group's activities from last Winter!

Updates from the covid era:

Rainey Aberle, Kate Bollen, and Colten Elkin had to postpone their thesis proposal defenses. They are now presenting their proposals in September 2020!

September 16 @ 3pm (https://boisestate.zoom.us/j/99707348512): Colten Elkin's proposal on Mapping seasonal snow fluxes in the western United States and Alaska using ICESat-2

September 18 @ 3pm (https://boisestate.zoom.us/j/92543695397?pwd=MG90Z29FTmlGLzdXY2g3RFVvcXltdz09): Rainey Aberle's proposal on Assessing controls on Antarctic Peninsula glacier dynamics using a numerical ice flow model

September 23 @ 3pm (https://boisestate.zoom.us/j/98983277624?pwd=ZXNxNFhObFZ5aXQyNVljci9HamlRUT09): Kate Bollen's proposal on Quantification and analysis of dynamic mass loss from Greenland’s peripheral glaciers

Jukes Liu successfully completed her MS thesis "Automated glacier terminus detection for Greenland's peripheral glaciers" and submitted a paper describing the new method she developed for mapping glacier termini in optical satellite imagery. Congrats Jukes! She will be staying as an EGGhead to complete her PhD in Geophysics, with research projects expanding on analysis of marine-terminating glacier discharge and iceberg calving as well as glacier surging.

I recently received funding from the National Science Foundation Arctic Natural Sciences program to study relationships between glacier dynamics and subglacial hydrology through analysis of detailed in situ observations, remote sensing data, and modeling activities focused on Turner Glacier in SE Alaska. In early fall 2020, the glacier will be instrumented with 5 on-ice GNSS/GPS (with a rock base station) to map glacier speed and elevation change with high precision, 5 on-ice and 6 pairs of off-ice seismic stations to map subglacial water flow, 1 autonomous stationary ice-penetrating radar to map thickness and en/subglacial properties, and 2 on-ice automated weather stations to constrain surface accumulation and melt. Photos to follow!

There will be several openings for new students in my group over the next year or so! I received funding from the NASA EPSCoR program to strengthen the cyosphere research program in Idaho through mountain glaciers and snow research and education efforts at Boise State and the University of Idaho. More details will be provided on the EPSCoR program soon, but the project will fund 3 grad students at BSU and 1 at UI so please contact me if you're interested in a graduate research project focused on the cryosphere!

I will also be giving a number of (remote) talks this fall! Check out my University of Minnesota Polar Geospatial Center talk on high-resolution digital elevation models for iceberg analysis on September 30 @ 11am US Mountain Time and International Glaciological Society talk on glacier ice-ocean interactions on October 14 @ 2pm US Mountain Time. Links to follow.

Winter/Spring 2019

Before the covid pandemic sent everything into chaos, my students participated in a number of cryosphere-focused field opportunities! Below I've included some photos from graduate students Rainey Aberle & Kate Bollen's travels to Volcan Villarrica in Chile for fieldwork on the glacier-clad volcano (lower left = arriving at the glacier), graduate student Colten Elkin's snow sampling short-course in New Hampshire (upper left = drone demonstration), and from Bogus Basin snow sampling for the NASA SnowEx program (right).

FALL 2019

Check out the bios for all the new students in the Enderlin Glaciology Group (aka the EGGheads) under the Students tab! We have a diverse set of ongoing projects, ranging from the development of new methods to automatically map changes in glacier length, to assessing spatio-temporal patterns in mass loss from Greenland's peripheral glaciers, to modeling of the response of glaciers to ocean change inferred from satellite-derived iceberg melt rates, to quantifying spatial patterns in snow depth in the mountains using ICESat-2 laser altimeter data. Expect to see results from these research projects at conferences and publications in the next year or so!

If you want to get my advice on navigating your career and starting a family, check out my guest blog post for USAPECS https://usapecs.wixsite.com/usapecs/post/personal-and-professional-success-are-not-mutually-exclusive-by-ellyn-enderlin. I also recommend that you attend the USAPECS Career Development Panel on Monday, Dec. 9th, from 2-3pm in the Moscone South Career Center Theatre and the informal women in the cryosphere social at the Mikkeller Bar on Tuesday, Dec. 10th, at ~8pm (after the AGU Cryosphere Business Meeting and Reception). There will be tons of people at both events to provide diverse insights on early career issues.

It's a relatively light AGU year for my group but check out the following presentations if you're in San Francisco for the 2019 Fall Meeting, including my talk Monday at 5pm. Also, if you're early in your career and interested in things cold and snowy/icy, don't miss the USAPECS Career Development Panel on Monday, December 9th at 2pm in the Career Center Theatre in Moscone South. I'll be sitting on the panel this year, (hopefully) dishing out helpful advice on navigating a career path that may be a little more circuitous than you had planned and time management tips that have helped me stay happy and mostly sane as I've navigated academia and motherhood.

SUMMER 2019

What are glaciers and why is it important that they are shrinking? How and why do I study glaciers? Have I always wanted to be a glaciologist/geophysicist? What other things do geophysicists study & what careers are out there? Check-out https://futurumcareers.com/why-do-some-glaciers-melt-faster-than-others for my answers to these questions AND ideas for activities that you can incorporate into classroom/outreach activities!

SPRING 2019

MS students Will Kochtitzky & Mariama Dryak and Honors undergrads Andrew Nolan & Emily Miller all completed their theses and earned their degrees this spring! Congrats all!

Recent PhD graduate Jessica Scheick & Will Kochtitzky also had three papers published between them:

Kochtitzky, W., H. Jiskoot, L. Copland, E. Enderlin, R. McNabb, K. Kreutz, & B. Main, 2019. Variations in terminus advance, kinematics, and mass redistribution during eight surges of Donjek Glacier, St. Elias Range, Canada, 1935 to 2016. J. Glaciol., doi:10.1017/jog.2019.34 .

Scheick, J., E. M. Enderlin, & G. Hamilton, 2019. Semi-automated open water iceberg detection from Landsat applied to Disko Bay, West Greenland. J. Glaciol., doi:10.1017/jog.2019.23.

Scheick, J., E. M. Enderlin, E. M. Miller, & G. Hamilton, 2019. First order estimates of coastal bathymetry in Ilulissat and Naajarsuit Fjords, Greenland, from remotely-sensed iceberg observations. Remote Sensing, 11(8), 935, doi:10.3390/rs11080935.

My group (clockwise from lower left): Emily Miller, Mariama Dryak, Lynn Kaluzienski, Jukes Liu, me, Will Kochtitzky, Andrew Nolan, and Jessica Scheick.

AGU 2018

Going to the American Geophysical Union Fall Meeting in 2018? Check-out my group's presentations, including my talks on Monday afternoon (C14A-01 @ 4pm) and Wednesday morning (C31B-02 @ 8:15am)!

Group dinner winter 2018 (from left to right): Peter Enderlin, Ellyn Enderlin (+ Winston Enderlin), Andrew Nolan, Emily Miller, Jessica Scheick, Lynn Kaluzienski, Jukes Liu, & Mariama Dryak. Missing: William Kochtitzky.

Fall 2018

New graduate student: The CCI Glaciology & CompuMAINE groups are happy to add Julia ("Jukes") Liu to our teams! Jukes will be developing an automated technique to map changes in glacier length over time using the Landsat image archive. Welcome Jukes!

Summer 2018

The UMaine Glaciology and CompuMAINE labs have paired-up on the NASA-funded project “Quantification and Analysis of Greenland Glacier and Ice Cap Discharge using Automated Landsat Terminus Change Time Series and NASA Data Products”. This is a joint project led by Dr. Ellyn Enderlin from the Climate Change Institute and School of Earth and Climate Sciences and Dr. Andre Khalil, founder and director of the CompuMAINE Lab. The CompuMAINE lab is collaborating with the Enderlin lab to develop an automated satellite image analysis procedure to help answer the questions below.

The overall aim of the proposed project is to quantify dynamic mass loss from Greenland’s peripheral glaciers and ice caps (GICs) over the last two decades and to assess variations in their ice discharge with respect to atmospheric and oceanic forcing. Two questions guide this work:

1) Has terminus retreat and/or ice flow acceleration substantially contributed to mass loss from Greenland’s GICs over the last two decades?

2) Do spatial and temporal patterns in Greenland GIC dynamics differ from the ice sheet’s outlet glaciers due to differences in their sensitivity to atmospheric and oceanic forcing?

Group photo at the final group lunch of spring 2018 (from left to right): Mariama Dryak, Jess Scheick, Lynn Kaluzienski (skyping on phone), Emily Miller, Andrew Nolan, & Will Kochtitzky.

Winter/Spring 2018

PAPERS! PAPERS! AND MORE PAPERS! If you are interested in learning about the use of remotely-sensed iceberg melt rates as a means to infer variations in ocean conditions in glacial fjords, check out my paper recently published in The Cryosphere: https://www.the-cryosphere.net/12/565/2018/. The iceberg melt data that my students and I produced for Greenland suggest that although ocean conditions in glacial fjords generally adhere to expected spatial patterns based on variations in regional air and ocean temperatures, differences in fjord geometry lead to deviations from expected patterns: long fjords packed with icebergs have lower melt rates than fjords where icebergs are rapidly transported to the open ocean. Whether these variations are due to differences in water temperature or circulation between fjords is an area of future interest.

Masters student Will Kochtitzky also recently had his undergraduate thesis work published in the Journal of Glaciology: https://www.cambridge.org/core/journals/journal-of-glaciology/article/improved-estimates-of-glacier-change-rates-at-nevado-coropuna-ice-cap-peru/AE2C29B25C4757967B2C6CEB8C918C33. Congrats Will! He mapped glacier change at the Coropuna Ice Cap in Peru using Landsat satellite images.

I also have a paper on variations in controls on mass loss from Columbia Glacier in Alaska at seasonal to inter-annual time scales that is under review at the Journal of Geophysical Research: Earth Surface. Check back for updates on the publication of these papers and more!

Fall 2017

New graduate student: The CCI Glaciology group is happy to add Mariama Dryak to our team! Mariama is TAing this year and will also be assisting with research on Antarctic iceberg melting. Mariama will be using very high-resolution satellite images to estimate iceberg melt rates around Antarctica and (hopefully) link melt rate variations in space and time to changes in ocean conditions and melting beneath Antarctica's ice shelves. Welcome Mariama!

Polar-ICE Data Story: I've been working with the Polar-ICE (Polar Interdisciplinary Coordinated Education; https://polar-ice.org/) program to develop an interactive learning module on glacier change that meets US grade 6-9 Next Generation Science Standards. The short module pairs real satellite observations of glacier retreat and air temperature change at Hintereisferner, Austria, with the global carbon dioxide record to help students understand causes and effects of global warming. The data stories are accompanied by a variety of complementary resources so that teachers can build lesson plans that include real-world data analysis and fit seamlessly into their curricula. Check-out the data story here: https://polar-ice.org/focus-areas/polar-data-stories/

Winter 2017

New Project on Antarctic Icebergs: Starting in June, I will be expanding the scope of my research on iceberg melting as part of an NSF-funded project titled "Antarctic Submarine Melt Variability from Remote Sensing of Icebergs". The project will compare spatial and temporal variations in iceberg melt rates, obtained using repeat very-high resolution (~0.5 m pixel width) satellite images, with variations in ice shelf thinning and ocean forcing. The major objectives of the project are to determine whether (1) differences in iceberg melting can be used as a proxy for variations in melting of Antarctica's ice shelves and (2) current ocean models are capable of simulating changes in ocean forcing, which have important implications for our ability to accurately predict future changes in Antarctic ice shelf stability.

Fall 2016

UMaine Glaciology in the News! Check-out the press release issued by the American Geophysical Union on iceberg melting in Greenland's glacial fjords: http://news.agu.org/press-release/most-meltwater-in-greenland-fjords-likely-comes-from-icebergs-not-glaciers/

New undergraduate research assistant: Time-lapse photos of glaciers and glacial fjords, like those featured in the movie "Chasing Ice", provide the opportunity to observe rapid changes in ice-ocean interactions. Undergraduate Mike Driscoll is currently working with time-lapse photos from Helheim Glacier in SE Greenland (see real-time photos here: http://glacierresearch.org/realtime-images.html) to characterize changes in iceberg calving. These data will be used to quantify iceberg calving volumes, which will be compared to glacier stress time series in order to assess the glacier's sensitivity to changes in terminus position.

New graduate student: The CCI Glaciology group is happy to add a new graduate student, Will Kochtitzky. Will is assisting with research on my Greenland iceberg melting project: he is extracting iceberg meltwater flux and melt rate estimates for ~6 fjords in Greenland using very high-resolution satellite images. Welcome Will!

Spring 2016

Undergraduate Research: Undergraduate research assistant and UMaine junior, Caroline Carrigan, presented her research results on iceberg melting at the UMaine Center for Undergraduate Research symposium. This was Caroline's first scientific poster! She presented her preliminary results on submarine melting for icebergs calved from Alison Glacier in NW Greenland and Zachariae Isstrom in NE Greenland. She's found that 2011 iceberg melt rates were similar in both locations, with an average of ~0.04 m/d and no significant seasonal variations. She'll be expanding her datasets to investigate seasonal and inter-annual variations in iceberg submarine melting near these two glaciers during her senior year at UMaine.

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