2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/23/2019 | 3:15 PM - 3:30 PM | LANDSCAPE-SCALE HYDROSPATIAL ANALYSIS OF FLOODPLAIN INUNDATION FOR ECOLOGICAL AND MANAGEMENT APPLICATIONS: A CASE STUDY OF THE UPPER MISSISSIPPI RIVER SYSTEM | 150 G
LANDSCAPE-SCALE HYDROSPATIAL ANALYSIS OF FLOODPLAIN INUNDATION FOR ECOLOGICAL AND MANAGEMENT APPLICATIONS: A CASE STUDY OF THE UPPER MISSISSIPPI RIVER SYSTEM
Inundation is a dominant physical process that drives the form and function of the Upper Mississippi River System (UMRS) floodplains. Despite its importance, inundation patterns have not been systemically characterized in spatially-explicit ways that would advance understanding of ecological processes or inform management actions in the UMRS. We developed a geospatial model of floodplain inundation using topo-bathymetric terrains and 40 years of daily water surface elevations. We applied the model across 2.8 million acres of the UMRS and summarized long-term patterns of surface water dynamics in terrestrial areas including inundation frequency, duration, depth, and timing. We found that distributions of these flooding attributes varied within and among multiple levels of river organization, including navigational pools and geomorphic reaches. Non-linear relationships among inundation attributes and their geospatial distributions likely reflect complex interactions among topographic, hydrologic, and anthropogenic constraints on flooding dynamics. We discuss current and future applications of the inundation model to advance process-based knowledge of ecological phenomena and to inform management decisions in the UMRS floodplain.
- Hydrology
- Geomorphology
- Riparian
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Presenters/Authors
Molly Van Appledorn
(), U.S. Geological Survey, Upper Midwest Environmental Sciences Center, mvanappledorn@usgs.gov;
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Nathan De Jager
(), US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, ndejager@usgs.gov;
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Jason Rohweder
(), U.S. Geological Survey, Upper Midwest Environmental Sciences Center, jrohweder@usgs.gov;
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