2022 - 2023
April 2023
Volunteer: Map Sorting Parties
give back, get snacks
We need volunteers to help sort maps for our map sale! These are 4 hour chunks, but volunteers can choose to come for as little as an hour. We will have snacks and free maps for volunteers!
Mar 10th, 2023
Quick Skills Workshop: Machine Learning and GIS
learn new skills
Join us for our first quick skills workshop of the year! We are partnering with Lorena Alves Carvalho Nascimento and the PCC GIS Club to put on a workshop introducing PSU and PCC students to discuss applications for geospatial technologies and AI.
Mar 9th, 2023
Winter Social
make new friends and connections
Join us for our quarterly social! You are welcome to come with a friend or two... the more, the merrier! We will discuss upcoming events, project opportunities, and the latest in the Portland GIS world!
Feb 16th, 2023
Masters in GIS Presentation
support other students
Join the PSU GIS Club for a presentation by Spencer Keller, sharing his recent work with the Roseburg Public Library! This is an in-person event with a Zoom option.
Jan 26th, 2023
Winter Fest 2023 Pizza Social
make new friends and connections
Swing by CH 409 during Winter Fest to learn more about the GIS Club! We are recruiting new members and officers! If you are looking for leadership opportunities, projects and work, networking, support or tutoring, or anything else, come talk with us over a slice of pizza. Whether you have five minutes or two hours, we would love to see you there!
Nov 29th, 2022
Fall 2022 Social
mix and mingle
Come hang out with other GIS students and professionals in a casual evening get-together! We will meet on the patio, so dress accordingly. This is a great way to get involved, ask questions about the GIS program, and hear what other people have been up to in the Fall 2022 quarter. Feel free to bring a friend - there is plenty of room at the table for everyone... and who doesn't like talking about maps?!
Nov 16th, 2022
GIS DAY
the most wonderful time of the year
We’re pleased to announce the 10th annual GIS Day PDX to be held at the Billy Frank Jr. Center at the Ecotrust building on the 16th of November, from 6-9 pm. We’ll start the evening with free pizza (incl. some vegan and GF pies) and beverages (beer, wine, and non-alcoholic), and a chance to catch up with old friends and make new ones. At 6:30 pm, Lauren Sinclair will give a talk called "Let them Make Maps: The GIS Revolution in K12." Stay after for cake, a raffle, and an opportunity to mix with the local GIS community in this wonderful space.
Visit https://christinafriedle.wixsite.com/gisdaypdx to learn more.
Oct 18, 2022
ASPRS Scholarship Webinar
funding opportunity
Want insight on applying for ASPRS scholarships? We will have ASPRS representatives sharing information about what scholarships are available and how to apply. They will also be present to answer your burning ASPRS scholarship questions.
Oct 24, 2022
2022 Back To School Night
community event
Welcome back to another year at PSU! Join us for our Back to School Night to meet new students, catch up with classmates, and learn about what everyone was up to this summer! There will be snacks and some quick presentations and Q&A sessions about what internships, jobs, and projects people have been working on in the past few months.
2021 - 2022
Nov 17, 2021
GIS DAY PDX 2021
community event
GIS Day PDX 2021 Events centered around an amazing hour (or two) of cartography lightning-talks from contributors to the newly published cultural atlas 'Upper Left Cities' by Hunter Shobe and David Banis. Speakers included the authors and contributors: Alicia Milligan, Lauren McKinney-Wise, Jonathan Leeper, Justin Sherrill, and Christina Friedle.
Oct 29, 2021
Happy Hour Social
hang-out sesh at the Lucky Lab
Our first IN PERSON event in a very long time!!! This was a casual meet-up event, where we caught up with fellow students, and met new ones :)
Oct 14, 2021
Back to School Night
student internship speakers panel
Our first event of the year was an online back-to-school night where fellow students shared their experiences seeking and participating in summer internship (and jobs!). Provided a chance to learn more about opportunities outside of school, as well as meet other students.
Discussed resources from speakers and attendees ---> VIEW SUMMARY HERE <---
2020 - 2021
Oct - Mappy Hour: Missing Mapathon event, with Chaelese Kailewa.
Oct - Speaker Series - Portland Mural Map, with the PCC GIS Club.
Spring - Speaker Series - Three-part series discussing Critical GIS and Community GIS, with David Banis and Randy Morris.
June 3 - 2021 Spring Career Panel - Panel of local GIS professionals discuss their work and offer advice for students on job search techniques, interviewing, and more - alongside PSU Career Counselor Mary Vance. Speakers: Theresa Burcsu (Freshwater Trust), Taylor Allen (Cow Creek Band of Umpqua Tribe of Indians), Rachel Wheat (Oregon Department of Fish and Wildlife), Frank Lahm (Bureau of Land Management), and Mary Vance (PSU Career Services).
2019 - 2020
Nov - Back to School Night: Pizza, Professionals and, Powerpoint. A panel of students who had internships/professional experience shared their experiences and offered advice. Also, upcoming events from both clubs were advertised and the clubs introduced themselves.
Feb - Annual Map Sale. Put on by PSU GIS club and the PSU geography dept.
Feb - PCC/PSU Mappy Hour. Mixer between both clubs where folks got to know each other in a fun, unstructured environment.
March - 2020 Cartography Symposium. The 5th biannual cartography symposium. A free, day long event that included informative presentations from important cartographers, a map gallery, and more!
May - Career Panel/State of the Industry Panel. Panel of local GIS professionals discuss how their work has changed in the time of COVID and share tips for students looking for work.
2018 - 2019
Oct - Back to School Night with ASPRS GIS Club. Student presentations on summer internships and jobs, upcoming events for the year, and social. "Bad Map Critique."
Nov - GIS Day: Missing Maps Mapathon; OR-URISA 7th Annual GIS Day Event at Ecotrust
Nov - Map Sale
Jan - ArcPro Workshop with Randy Morris
Feb - General Meeting with special discussion topic: "Grad School Mysteries."
Feb - Talk on Applied Critical GIS with Tim Hitchins and Sachi Arakawa of the Mapping Action Collective
Feb - PDX GIS Social - Mixer with the PSU and PCC GIS Clubs at Lucky Lab on Hawthorne
Feb - DOGAMI Student Visit & ASPRS Annual Dinner at McMenamins Broadway Pub. Every February, members get together for dinner and learn about the groups past years accomplishments and plans for the next year. Professional members and student members from PSU, PCC, OSU, and U of O were among those in attendance. This year, the ASPRS's Columbia River Region and the Puget Sound Region announced they are merging to become the ASPRS Cascadia Region.
Mar - Portland GIS Winter Social with OR-URISA Emerging Professionals and PSU ASPRS GIS Club
Apr - 27th Annual GIS In Action Conference at PSU
May - Missing Maps Map-a-Thon
May - Dymaptic Presentation: A.I. for Safer Cycling Routes
May - Seminar on Modern GIS with Esri Solution Engineer Canserina Kurnia
May - Annual GIS Career Panel. Panelists: Kate Clark - XPO Logistics; Eric Stipe - NW Natural; Richard Crucchiola - Washington County; Molly Vogt - Metro; Tyler Vick - Flo Analytics; and Louise Paradis - PSU Career Services.
2017 - 2018
Oct - Back to School Night with ASPRS GIS Club. Student Speaker panel on summer internships and jobs, upcoming events for the year, and social. Student Speakers: Katelyn Michelson, John Rogers, Kelsey Ramsey, Adele Rife, and Alec Trusty.
Oct - ASPRS Columbia River Region Tech Exchange
Nov - Map Sale
Nov - GIS Day: Missing Maps Mapathon and 6th Annual GIS Day Event.
Nov - Presentation by James Manzione. Topic: Basic Python Skills
Jan - Student Map Critique
Feb - Presentation by Bryan Kilburn. Topic: Using sUAS for a tool
Mar - 2018 Portland Cartography Symposium. Keynote Speaker: Aaron Draplin. Presenters: Nik Wise, Tim Hitchins, Dan Coe, Paul Fyfield, Gabriel Rousseau, Mattye Walsworth, Joseph Bard, Alexa Todd, Jon Franczyk, Kate Leroux, Amy Lobben, Joanna Merson, Jim Thatcher, Matthew Hampton, Chris Wayne, Molly Vogt, and Rafa Gutierrez.
Apr - GIS In Action - Portland State University - The twenty-sixth annual GIS In Action Conference, hosted by the Columbia River Region of the ASPRS and the Oregon-Southwest Washington Chapter of URISA.
May - Missing Maps Mapathon
Jun - Career Panel: A selected group of local GIS professionals shared their tips on resumes, interviews, and how GIS students can prepare to land their dream jobs after graduation. Panel members: Mary Vance (PSU Career Guidance Specialist); Maria Schlangen (City of Hillsboro GIS Manager); Jason Underwood (City of Portland Maps/Records Supervisor); Heather Borunda-Ferguson (Quantum Spatial).
2016/2017
Oct - Back to school with the GIS Club. Discussions of summer GIS projects, social, and happy hour.
Nov - Speaker Series: Jackson Voelkel, Sustaining Urban Places Research Lab, Portland State University - Topic: R for Spatial Analysis
Feb - Student Map Critique. A fun and casual critique of our peers posters, web maps, story maps, or any type of mapping data graphics.
Feb - Speaker Series: Joe Gordon, Portland Metro and PCC - Topic: Fusion of Multispectral Imagery and LiDAR for Classification of Oregon White Oak
Apr - GIS In Action - Portland State University - The twenty-fifth annual GIS In Action Conference, hosted by the Columbia RIver Region of the ASPRS and the Oregon-Southwest Washington Chapter of URISA.
May - Resistance GIS - RGIS was a first of its kind mini-conference that took place at Portland State University on May 20th, 2017. The event was well attended and was a great success. What exactly is RGIS? Our conference aimed to build a new critically informed framework for applicaitons of GIS by providing a space for GIS experts and non-experts to exchange radical ideas that challenge the dominant paradigm of GIS as neutral tool. Students, academics, organizers, professionals and the general public are welcome to join, learn and share tips, skills and visions for how geospation technologies, open data and data visualization can empower communities and support civil resistance struggles and social movements. From Anti-Eviction mapping to international water securty, speakers such as Brittany Ricker, Jim Thatcher, Veronica Velez, Jennifer Veilleux and Erin McElroy Brought their experiences and knowledge to share with all. Check out our website: https://resistancegis.wordpress.com/
2015/2016
Oct - Corey Plank, Bureau of Land Management. Topic: Bureau of Land Management's use of LiDAR & drones for remote sensing applications
Nov - 2015 Portland Cartography Symposium
Nov - 4th Annual GIS Day Event
January - Mathew Lippincott, of Public Lab. Topic: Aerial Photography in the Age of Drones Missed the presentation? Watch it here.
January - Mathew Lippincott, of Public Lab. Weekend Workshop: Low Altitude Aerial Photography Workshop. See more work of the public Lab community Here; https://publiclab.org/tag/pole-mapping
May - Career Panel:
- Jamie Ludwig, Director of Operations at Quantum Spatial
- Anne Hillyer, Cartographer at Bonneville Power Administration
- Josh Ahmann, Planner / GIS Analyst at Paramatrix
- Jeff Nighbert, Senior Technical Specialist at Bureau of Land Management
- Tyler Vick, Principal at FLO Analytics
- Mary Vance, Career Counselor at PSU Advising & Career Service
2014/2015
Oct - Joe Hayes, GIS technician, Washington County. Topic: One List to Rule Them All. John Sherrard, ESRI. Topic:Deploying GIS Technology in an Enterprise Environment
Nov - 3rd Annual GIS Day Event
Nov - Ian Madin, DOGAMI. Topic: LiDAR in Oregon: Beyond the Bare Earth.
Jan - Darrell Fuhriman. Topic: Open Source GIS.
Feb - Columbia River Region of the American Society for Photogrammetry and Remote Sensing, Annual Dinner.
Feb - Tim McCarthy, Peace Corp. Topic: GIS, Disaster Planning, Dengue y Merengue.
May - CAREER PANEL
Sim Ogle, Port of Portland
Jimmy Kagan, INR & ORBC
Patrick Burns, Quantum Spatial
Greg Flores, Portland State
2013/2014
Oct - Greg Townley, Professor, Portland State University Department of Psychology. Topic: GIS Applications in Psychology
Nov - Portland Cartography Symposium 2013
Stuart Allan, Allan Cartography, Keynote Address. Topic: Maps, not data dumps: Making maps that people will be willing to look at long enough to learn something
Justin Miller, MapBox. Topic: Creating Custom Maps With TileMill and CartoCSS
Ryan Sullivan, Paste in Place. Topic: Recent Projects
Matthew Hampton, Metro. Topic: Designing a Regional Multi-scale Digital Map
Ben Sainsbury, Metro. Topic: Keeping up with the Times: Developing a Regional Government API
Dr. Aileen Buckley, ESRI. Topic: It’s About Time: GIS Brings Spatio-temporal Data to Life
Bernhard Jenny and Bojan Šavrič. Topic: Adaptive Composite Map Projections
Nick Arnold, Jane Darbyshire, Lara Heitmeyer, Brooke Marston, Charles Preppernau, Steven Schuetz, and Bernhard Jenny, Oregon State University. Topic: Atlas of the Columbia River Basin — Interactive Atlases for iPads
David Banis, Corinna Kimball-Brown, Kirk McEwen, Jon Franczyk, and Daniel Coe, Portland State University. Topic: Cartographic Anarchy: Creating a Cultural Atlas of Portland
Nov - 2nd Annual GIS Day Event
Jan - Angie Diefenbach, USGS Volcano Disaster Assistance Program. Topic: Oblique photogrammetry as a tool for quantifying volcanic eruption volumes in Ecuador
Feb - Nate Wood, USGS. Topic: Site Suitability for Vertical Evacuation Structures on the Pacific Northwest Coast
Mar - Erin Stockenberg, US Fish and Wildlife. Topic: Modeling Inundation Levels at Wapato Lake Using High-resolution LiDAR
May - Steve Schilling, USGS. Topic: Laharz Software Helps Users Map Lahar Hazard Zones
May - CAREER PANEL
Chris Aldridge, Geospatial Manager at David Evans and Associates, ASPRS CRR President
Steven Sobieszczyk, Hydrologist at USGS
Annie Trambley, Remote Sensing/Water Quality Analyst at QSI
Daron McCaulley, Remote Sensing/GIS Specialist at QSI
Mary Vance, Career Counselor, PSU Advising and Career Services
Tyler Vick, Principal at FLO Analytics and former ASPRS student president
2012/2013
Oct - David DiBiase, ESRI Director of Education for Industry Solutions. Topic: Stand and Be Counted: seven ways to strengthen the GIS profession
Nov - Chris Aldridge, Geospatial Manager, Surveying & Geomatics COE. Topic: GeoAutomation; an imagery based mobile mapping system
Feb - Matthew Holdgate, M.S. Candidate, PSU Biology Department. Topic: Room to roam: using GPS to improve the welfare of zoo elephants
Mar - Josh Faber-Hammond, Adjunct Research Assistant, PSU Biology Department. Topic: Developing a Breeding Habitat Suitability Model for Northern Red-legged Frog in the Portland Metro Region
Apr - Dr. Wen Lin, School of Geography, Politics and Sociology, Newcastle University. Topic: Investigating social constructions of geospatial technologies: Politics of everyday mapping and spatial narratives in China.
Apr - Mike Renslow, Editor-in-Chief and contributing author. Topic: The ASPRS Airborne Topographic LiDAR Manual: The latest developments, best practices, and application of LiDAR technology
May – CAREER PANEL
Molly Vogt and Paul Couey, Metro
Rachel Smith, DOGAMI
Erik Brewster, Kapala IT
Gus Monteverde, The Freshwater Trust
2011/2012
Oct - Janne Boone-Heinonen, OHSU and UNC Chapel Hill. Topic: Cardia Study, Using GIS to see the relationships between diet quality and fast-food availability
Nov - Greg Stewart, Portland Police Bureau. Topic: Mapping and crime in Portland, Oregon: Using GIS to help reduce crime, the fear of crime and improve neighborhood livability
Nov – CARTOGRAPHY SYMPOSIUM
David Imus (keynote speaker)
Analisa Fenix (Ecotrust)
Liz Cruz (US Fish and Wildlife)
Daniel Coe (DOGAMI)
Rafa Gutierrez (Grafa Geographic Design)
John Sharrard (ESRI)
Erin Aigner (City of Gresham/NY Times)
Paul Fyfield (BLM)
Matthew Hampton (Metro)
Jan - Justin Healy, Real Urban Geographics. Topic: Using GIS for wind farm site analysis and methodology
Feb - Erik Strandhagen, Integral Consulting. Topic: Applying GIS to environmental analysis
Mar - Byron Clayton, BLM. Topic: Migrating land status records to a spatial environment
Apr - Jimmy Kagan, Institute of Natural Resources. Topic: GIS at the Institute for Natural Resources
2010/2011
Nov – Chris Aldridge, Continental Mapping Consultants Inc. Topic: Photogrammetry 101
Nov - Tom Perkins, National Water and Climate Center. Topic: GIS: Bridging the gap between research and technology
Mar - Jacob Macdonald, U.S. Army Corp of Engineers. Topic: Applying digital terrain modeling to water resource engineering
Apr – Matthew Hampton, GIS Specialist with Metro. Topic: Creativity in mapmaking
Apr – Chris Aldridge, ASPRS. Topic: Primer on the ASPRS, “We are the ASPRS”
May – CAREER PANEL
Steve Lennartz, Sanborn
Orrin Frederick, BLM
Mark Bosworth, Metro
2009/2010
Nov - Topic: GIS applications, cow manure, stream quality, and salmon death
Nov – Richard Lycan, Population Research Center. Topic: Older moms deliver: How increased births to older moms impacts enrollments at Portland public schools
Jan – Jasna Kolasinac, European Environmental Agency and the University of Belgrade. Topic: Methodology for land cover interpretation in Serbia
Feb – Ralph Kiefer, University of Wisconsin. Topic: Remote sensing and GIS: Then and now
Apr – David Percy, PSU. Topic: Open source GIS
May - Jacob MacDonald, US Army Corps of Engineers. Topic: Lidar, and water resource engineering applications.
May - Daniel Wise, USGS Hydrologist. Topic: Spatial modeling of surface water nutrients in the Pacific NW.
May – CAREER PANEL
John Chase, USDA, Forest Service
Terrence Conlon, USGS, Oregon Water Science Center
Baron Howe, L-3 STRATIS
Mike Mertens, Ecotrust
Erik Strandhagen, Integral Consulting
2008/2009
Nov – Whityn Owen,USDA NRCS. Topic: Using DEM surface derivatives for soil data analysis
Nov – Sheri Schneider, USGS. Topic: Exploring GIS data at the US Geological Survey in Oregon
Feb – Kevin Martin, City of Portland Bureau of Planning and Sustainability. Topic: Applications of LiDAR in planning Portland’s future
Feb – Mike Boeder, Watershed Sciences. Topic: LiDAR processing, applications, and future directions
Mar – Erik Strandhagen, Integral Consulting. Topic: 3D subsurface geostatistical analysis
Apr – Steven Lennartz, Sanborn. Topic: A geographic perspective of New Zealand
May – Ken Salsman, Aptina, Inc. Topic: Remote sensing from humble past to mighty future: The intersection of geography and physics
May – CAREER PANEL
Celia Cornett, Portland Water Bureau
David Drescher, US Fish and Wildlife Service
Rafael Gutierrez, SWCA Environmental Consultants
Tim Nortz, Watershed Sciences
Molly Vogt, City of Gresham
2007/2008
Oct – Molly Vogt, City of Gresham. Topic: The Shady Side of GIS: Planning Stream Revegetation in Gresham to Enhance Water Quality
Nov – Steph Gaspers, ASPRS Research Scholarship Recipient. Topic: Thematic Mapping for Middle-School Students: Are We Asking the Right Questions?
Feb – Cy Smith, Statewide GIS Coordinator. Topic: The Oregon Imagery Explorer Project
Apr – Blair Deaver, GeoEngineers, Inc. Topic: Virtual Globe Smackdown
Apr – Ralph Kiefer Co-author of Remote Sensing and Image Interpretation, Professor Emeritus, University of Wisconsin-Madison. Topic: Photographing Hawaiian Volcanoes in the Infrared
Apr – CAREER PANEL
Chris Aldridge, i-Ten Associates
Carol Murdock, Clackamas County Water Environment Services
Whityn Owen, USDA - NRCS
David Graves, Columbia River Region Intertribal Fish Commission
Geoffrey Chew, Portland Water Bureau
2006/2007
Oct – Dawn Wright, Professor of Geography and Oceanography, Oregon State University. Topic: Acoustic Remote Sensing and Marine GIS in the South Pacific (and Elsewhere)
Oct – Lisa Zurk, Associate Professor of Electrical and Computer Engineering and Director of The Northwest Electromagnetics and Acoustics Research Lab, Portland State University. Topic: Physics-Based Processing for Radar Terrain Imagery and Sonar Mapping of Coral Reefs
Nov – James Meacham, InfoGraphics Lab Director, University of Oregon. Topic: From Grizzlies to Geysers: Creating the Atlas of Yellowstone
Feb – CAREER PANEL
Chris Aldridge, Spencer Gross
Mark Bosworth, Metro
Michele Huffman, USDA Forest Service
Jackie Olsen, USGS Water Resources Division, Portland
Molly Vogt, City of Gresham
Feb – Matt Stevenson, CORE GIS. Topic: A Conservation Plan for the Columbia Land Trust
Mar – Robert McMaster, Professor, Geography, University of Minnesota. Topic: The National Historical Geographic Information System
Apr – Amy Lobben, Assistant Professor, Geography, University of Oregon. Topic: Understanding What the Map User Understands
Apr – Robert Kennedy, USDA Forest Service, PNW Research Station, Corvallis. Topic: Applied Change Detection: New Approaches for Monitoring National Parks and Forested Lands at Regional and National Scales
May – Demetrios Gatziolis, USDA Forest Service, PNW Research Station. Topic: The Utility of LiDAR for Forest Inventories
May – Judy Olson, Professor, Geography, Michigan State University. Topic: Map Projections: For Mere Mortals
2005/2006
Oct – Steve King, NOAA/National Weather Service. Topic: Columbia River Water Stage Modeling & Prediction
Oct – Geoffrey Duh, Geography, Portland State University. Topic: Careers in GIS & Remote Sensing
Nov– Dan Brown, School of Natural Resources & Environment, University of Michigan. Topic: Land Cover Change in the Exurbs: A View from Michigan
Jan – GIS Job Market Forum
Feb – Anne Hillyer, BPA. Topic: Georeferencing and Orthorectification of Air Photos in the Softcopy Environment
Feb – Michael Wing, Oregon State University. Topic: Mapping and Analyzing Crime in the National Forest
Mar – Jeff Nighbert, BLM. Topic: Managing a GIS in the Real World"
Apr – Ralph Kiefer, Professor Emeritus, University of Wisconsin-Madison. Topic: 50 Years of Remote Sensing and GIS: A Personal Journey
Apr – Kevin Martin, City of Portland, GIS Analyst. Topic: Recent applications of LiDAR and multispectral imagery in the City of Portland, focusing primarily on mapping canopy and tree heights in Tryon Creek watershed
May – Heejun Chang, Assistant Professor of Geography, PSU. Topic: Land Cover Change and Water Quality: Portland and Seoul Metro Areas
May – Doug Smith. Topic: Designing Aerial Mapping Projects for GIS: Key Project Planning issues and Considerations
2004/2005
Oct – Marc Thomas, BLM. Topic: The PLSS in Remotely Sensed Images
Oct – Matt Dietemeyer, Dept of Assessment & GIS, Clark Co, Washington. Topic: Applying LiDAR & Infrared Aerial Photography to create a Land Cover Classification for Clark County, Washington
Nov – Steve Duncan, Bonneville Power Administration. Topic: Photogrammetry 101, Part 1
Jan - CAREER PANEL
Glenda Woodcock, Mt Hood National Forest Public Affairs
Demetrios Gatziolis, Dale Weyermann, Sally Campbell, & Todd Schroeder, USFS PNW Research Station
Susan Kelly & Tim Hall, Portland Water Bureau Community Outreach
Sheila Casey, BLM HR Specialist
Shelley Moore, BLM SCEP Student- GIS Trainee
Jan – Tom Pagh, OSI Geomatics, Inc. and National Director, ASPRS. Topic: High Accuracy Photogrammetric Mapping for Transportation Design-Build Projects
Feb – Chris Aldridge, Spencer B. Gross, Inc. Topic: Photogrammetry 101, Part 2
Feb – Gregg Petrie, Senior Research Scientist, Imaging and Electro-optics Group, Pacific Northwest National Laboratory. Topic: PNWRC Land Resource Project: Partnerships Integrating New Technologies for Improved Environmental Decision Making
Mar – Duncan Crowl, Leica Geosystems. Topic: New Leica Photogrammetry Software
Apr – Ralph Kiefer, co-author of Remote Sensing and Image Interpretation, Professor Emeritus, University of Wisconsin-Madison. Topic: Fifty Years of Remote Sensing and GIS: A Personal Journ