Topobathymetric data merges land topography and water depth into a single product for inundation mapping. The dataset was developed using U.S. Geological Survey topography and NOAA bathymetry, with high-resolution NASA EAARL lidar data for nearshore areas. These data were collected under the USGS Gulf of Mexico Integrated Science Tampa Bay Study.
Use Cases
- Model coastal inundation and storm surge based on merged land and water elevation.
- Analyze shoreline change and sediment transport based on high-resolution nearshore bathymetry.
- Support marine navigation and habitat mapping based on detailed bathymetric data.
- Conduct 3D visualization and simulation of coastal landscapes based on the integrated elevation model.
Strengths
- Integrates three authoritative data sources: USGS NED, NOAA GEODAS, and NASA EAARL.
- Provides a seamless elevation model covering both terrestrial and marine environments.
- Includes high-resolution bathymetry from NASA's airborne lidar for critical nearshore zones.
Limitations
- Data were collected at different dates; temporal consistency is not guaranteed.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
Provenance
- Source
- U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA).
- Collection Method
- Merged from USGS National Elevation Dataset topography, NOAA GEODAS bathymetry, and NASA EAARL lidar bathymetry.
- Time Range
- null
- Freshness
- Last update date is unknown; freshness unverified.
- Geography
- Tampa Bay, Florida, USA.