Using hyperspectral airborne PRISM imagery to map vulnerable coastal salt marsh and seagrass habitats Dr. Heidi Dierssen UCONN Professor Marine Sciences/Geography Acknowledgements • UCONN COLORS Lab-‐ Eric Heupel (photographs), Kelley Bostrom, Brandon Russell • NASA JPL • Naval Research Lab – Gao for atmospheric correcPon • Field ValidaPon team for PRISM – NASA Ames – University of Santa Cruz – Moss Landing Marine Labs – Monterey Bay Aquarium Research InsPtute • Richard Zimmerman, Old Dominion University Why seagrasses and salt marshes? • Improved understanding of role of shallow banks and bays on carbon cycle and climate • BLUE Carbon – Coastal vegetaPon sequesters carbon more effecPvely than terrestrial ecosystems QuesPons regarding fate of carbon • Different seagrass species play different ecological roles • Turtlegrass leaves decompose in the beds Manateegrass • Buoyant leaves, exported carbon A B C FL Bay seagrass beds have li\le debris Export Carbon out of system Seagrass serves as criPcal habitat >150 species small invertebrates 100 species algae Fish Seagrass as Habitat for Other Organisms 5 3 4 1 2
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