Polyline map data traces the deepest parts of the Chesapeake Bay and its tidal estuaries. Channels were digitized based on deepest contours, channel slope, width, and bottom geomorphology. The underlying contour data is derived from a NOAA/NOS 30-meter gridded digital elevation model.
Use Cases
- Modeling sediment transport pathways using the digitized channel polylines and geomorphology data.
- Assessing navigational safety by analyzing channel width and slope features from the contour data.
- Studying estuarine circulation patterns based on the deepest channel contours derived from bathymetry.
Strengths
- Data derived from authoritative NOAA/NOS 30-meter gridded bathymetric DEM.
- Channels digitized using multiple criteria including contour, slope, width, and geomorphology.
Limitations
- Specific row count, spatial resolution beyond 30m source, and temporal coverage are unknown.
- Limited to the Chesapeake Bay region, not applicable to other coastal systems.
Provenance
- Source
- NOAA National Ocean Service (NOS) bathymetric data.
- Collection Method
- Digitized from deepest contours, channel slope, width, and bottom geomorphology.
- Time Range
- null
- Freshness
- null
- Geography
- Chesapeake Bay and its tidal estuaries.