Mathematics – Logic
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3115503w&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 15, CiteID L15503
Mathematics
Logic
8
Geodesy And Gravity: Space Geodetic Surveys, Geodesy And Gravity: Instruments And Techniques, Hydrology: Runoff And Streamflow, Hydrology: Wetlands, Hydrology: Instruments And Techniques
Scientific paper
New space-based observations of South Florida with interferometric SAR (InSAR) reveal spatially detailed, quantitative images of water levels in the Everglades. The new data capture dynamic water level topography, providing the first detailed picture of wetland sheet flow. We observe localized radial sheet flow in addition to well-known southward unidirectional sheet flow, modelled as a linear diffusive flow. We obtain quantitative estimates of flow diffusivity (23-91 m2/s), the first space-based estimates of such hydrologic parameter for the Everglades. Space-based hydrologic observations can provide critical information for monitoring, understanding and managing wetland sheet flow, and contribute to wetland restoration.
Amelung Falk
Carande Richard
Dixon Timothy H.
Miralles-Wilhelm Fernando
Wdowinski Shimon
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