Mississippi River Delta Ecogeomorphic Cells from 2021 NASA Campaign

January through September 2021 data delineates the Mississippi River Delta landscape into distinct ecogeomorphic cells. NASA's Delta-X campaign produced this dataset for the Atchafalaya and Terrebonne basins in Louisiana, characterizing cells by vegetation spectral signatures and elevation. Data is provided as shapefiles and GeoTIFFs with a spatial resolution of approximately 5 meters.

Use Cases

• Analyzing spatial patterns of vegetation health using NDVI and NIR reflectance values per cell.
• Modeling wetland elevation and bathymetry using mean and standard deviation data within each polygon.
• Segmenting the delta landscape for habitat classification or change detection studies.
• Integrating cell-based data with hydrodynamic models to understand sediment transport.
• Validating remote sensing products against homogeneous ecological and geomorphological units.

Strengths

• Data is derived from Sentinel 2 imagery and USGS DEMs acquired during a focused NASA campaign (Delta-X 2021).
• Provides both vector (polygon) and raster representations at a high spatial resolution of approximately 5 meters.
• Cells are characterized by multiple metrics: mean and standard deviation of bathymetry, NIR, and NDVI.

Limitations

• Sources conflict on the last updated date: one lists 2021-09-30, while others list 2026-03-13.
• Key quantitative details like total row/polygon count and dataset size are not provided by any source.
• The specific license terms under 'other-license-specified' are not detailed.

Provenance

Source

NASA Delta-X campaign, with data processed by ORNL_CLOUD.

Collection Method

Ecogeomorphic cells derived from Sentinel-2 spectral indices (NIR, NDVI) and USGS Digital Elevation Model data.

Time Range

2021-01 to 2021-09

Freshness

2026-03 13 03:10:29.862916

Geography

Atchafalaya and Terrebonne basins of the Mississippi River Delta, southern Louisiana, USA.