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Spatial Signals is a podcast about remote sensing, GIS, and geospatial technologies - but more importantly it’s a podcast about the people who use and apply them. This podcast is sponsored by AmericaView, the national remote sensing network dedicated to empowering Earth Observation. Your hosts are Dr. Bradley Shellito from Youngstown State University and Mr. Chris McGinty, the Executive Director of AmericaView. New episodes every Monday morning.
Episodes

Monday Sep 08, 2025
The Bad News Bears Wildfire Fighting Team with Scott Powell
Monday Sep 08, 2025
Monday Sep 08, 2025
Scott Powell from Montana State University joins us to talk about Scott’s work at the Guadalupe Mountains National Park in Texas, mapping cave openings in the Carlsbad Caverns area, Scott’s time as a firefighter fighting wildfires, Landsat imagery time series printouts, the Oregon Cascades. geologic carbon sequestration, using aerial hyperspectral sensors for detecting leaking carbon emissions, drone applications and imagery acquisition, CART decision trees, MontanaView, and much more. Show notes are available at: https://americaview.substack.com

Monday Sep 01, 2025
It Took A Hi-Ranger To Carry The Instrument Around with Larry Biehl
Monday Sep 01, 2025
Monday Sep 01, 2025
Larry Biehl from Purdue University joins us to talk about a prophetic high school paper about computer applications in farming, the Laboratory for Applications of Remote Sensing (LARS), Skylab, the development of MultiSpec, the vision to keep MultiSpec free and available, the Terrestrial Observatory, the birth of IndianaView, Useful 2 Usable, remote sensing agricultural applications, spectrometers and radiometers, and the importance of data calibration. Show notes are available at: https://americaview.substack.com

Monday Aug 25, 2025
Don't Live In The Ivory Tower with Tom Mueller
Monday Aug 25, 2025
Monday Aug 25, 2025
Tom Mueller from the Massachusetts Bureau of Geographic Information (MassGIS) joins us to talk about Pchem ending Tom’s time as a Chemistry major, building an atlas of nursing homes, the importance of service learning for students, the GeoTech Center, Humanitarian OpenStreetMap, Mapathons, mapping and analysis of water samples and contamination, MassGIS, the Massachusetts Spatial Data Infrastructure, the birth of MassachusettsView, the Cohasset Center for Coastal Student Research and much more. Show notes are available at: https://americaview.substack.com

Monday Aug 18, 2025
It's Like Learning a Bad Golf Swing with Lance Yarbrough
Monday Aug 18, 2025
Monday Aug 18, 2025
Lance Yarbrough from the University of Mississippi joins us to talk about an encounter with a Floyd Sabins textbook at a university book sale at a young age, examining geology through stereopairs, the Year of the Satellite, remote sensing application in North Dakota. lidar data analysis, 3D models and Structure from Motion, GeoAI tools, the appeal of retro analog maps and tools, giving expert witness testimony in court, and much more. Show notes are available at: https://americaview.substack.com

Monday Aug 11, 2025
Monday Aug 11, 2025
Kyle Fredrick from PennWest University - California joins us to talk about teaching a middle-school class in college, groundwater modeling, user-friendly vs. user-surly software, his fantastic geologic mapping summer field class that he teaches each year, remote sensing of Utah landscapes, the growth of the sand spit and new habitats at Presque Isle in Erie, and the potential for critical and rare-earth mineral extraction from coal waste piles. Show notes are available at: https://americaview.substack.com

Monday Aug 04, 2025
Landsat Next - The Squared Circle, Round One
Monday Aug 04, 2025
Monday Aug 04, 2025
This is Round One of our special “Squared Circle” episodes, where a group of guests gets together to wrestle with a particular topic. For this episode, we're joined by Dr. Aaron Maxwell from West Virginia University, Dr. Bruce Millett from South Dakota State University, Dr. Dana Peterson from the University of Kansas, and Dr. Doug Ramsey from Utah State University, and we’re discussing all things Landsat Next. We talk about what everyone is most looking forward to with the upcoming launch of Landsat Next, how its new and improved capabilities over the previous Landsat satellites will impact data collection, research, and analysis, and the potential challenges of the new system and data. Show notes are available at: https://americaview.substack.com

Monday Jul 28, 2025
The Course Catalog Was The Yellow Pages with Dana Peterson
Monday Jul 28, 2025
Monday Jul 28, 2025
Dana Peterson from the University of Kansas joins us to talk about the Yellow Pages of class descriptions, the Kansas Biological Survey, archiving Landsat imagery from 9-Track Tapes, spectroradiometers, watersheds and green-up, field work on the Rio Grande, the Sentinel GreenReport that leverages Sentinel-2 imagery for vegetation monitoring over time, eastern red cedar woody encroachment, and mapping and collecting data for invasive species analysis. Show notes are available at: https://americaview.substack.com

Monday Jul 21, 2025
We Had Some Sensors Eaten By Cows with Kevin Czajkowski
Monday Jul 21, 2025
Monday Jul 21, 2025
Kevin Czajkowski from the University of Toledo joins us to talk about snow days, a heat wave summer, an internship with the National Weather Service, space plasma physics, the revelation of getting paid to go to graduate school, the ups and downs of academic job applications, the perils of looking like a geographer, receiving the NASA New Investigator grant, soil moisture sampling and the SMAP project, taking your son with you for fieldwork, having sensors eaten by cows, GLOBE Mission Earth, Kevin’s work philosophy, the early days of OhioView, air quality satellites and analysis, and much more. Show notes are available at: https://americaview.substack.com
