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Accurate elevation data in coastal wetlands is crucial for planning for sea-level rise. Elevation surveys were conducted across southwest Florida wetlands to provide ground validation of LiDAR as well as target long-term monitoring stations (surface elevation tables). Surveys were conducted in June 2021 across Ding Darling National Wildlife Refuge, Clam Bay, Rookery Bay National Estuarine Research Reserve, and Ten Thousand Islands National Wildlife Refuge. A combination of post-processed kinematic GPS and differential levelling survey techniques were employed, depending on the canopy cover.
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. The U.S Geological Survey Scientific Investigations Map provides raster data that can be used to assess channel response to streamflow alteration scenarios indicated from computer modeling of streamflow and sediment-transport conditions. Each 0.3-meter raster cell represents the surface elevation as derived bathymetric and topographic surveys and verified with RTK GPS. The Yampa River in northwestern Colorado is the largest, relatively...


    map background search result map search result map Elevation Survey Across Southwest Florida Coastal Wetlands, 2021 Yampa River channel elevation at Deerlodge Park, CO Yampa River channel elevation at Deerlodge Park, CO Elevation Survey Across Southwest Florida Coastal Wetlands, 2021