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- B33H-1988: Capturing Lake Mendota Seasonal Phenology with an Airborne Hyperspectral Field Campaign
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Board 1988‚ Hall EFG (Poster Hall)NOLA CC
Author(s):Generic 'disconnected' Message
Sophia Skoglund, University of Wisconsin Madison (First Author, Presenting Author)
Brendan Heberlein, University of Wisconsin Madison
Min Oo, University of Wisconsin Madison
Helen Schlimm, University of Wisconsin Madison
James Sustachek, University of Wisconsin Madison
Robert Holz, University of Wisconsin Madison
Philip Townsend, University of Wisconsin Madison
Katherine McMahon, University of Wisconsin Madison
Grace Wilkinson, University of Wisconsin Madison
Paul Hanson, University of Wisconsin Madison
New satellite imaging technology will provide us with hundreds of layers of information. This information comes in the form of wavelengths of light, which each get absorbed and reflected differently based on what is in the water. We suspect this detailed imagery will be a powerful way to monitor water quality in lakes. To test out how we might use these future data, our team took a camera similar to those on upcoming satellites and installed it on a plane. We then flew the plane over Lake Mendota, WI while also taking water quality measurements from a boat. This fieldwork was conducted 14 times in March through November, 2024. We performed a multivariate analysis to look at the relationships between all the colored water quality variables and all the visible wavelengths of light. We found these relationships to be clustered in groups that match up with known phases of Lake Mendota’s annual cycle: non-cyanobacteria phytoplankton in early spring, clear water in late spring, and a cyanobacteria-dominated summer into fall. This shows we are capable of describing the status of an aquatic ecosystem using Earth-observing satellites.
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