Overview
| DOI | https://doi.org/10.3334/ORNLDAAC/2181 |
|---|---|
| Version | 1 |
| Project | |
| Published | 2023-09-29 |
| Updated | 2023-09-29 |
| Usage | 51 downloads |
| Citations | 2 publications cited this dataset |
Description
This dataset provides an updated digital elevation model (DEM) for the Atchafalaya and Terrebonne basins in coastal Louisiana, USA. The DEM is updated from the Pre-Delta-X DEM and extended to the full Delta-X study area. This DEM was developed from multiple data sources, including sonar data collected during Pre-Delta-X and Delta-X campaigns, bathymetric data from the Coastal Protection and Restoration Authority System-Wide Assessment and Monitoring System (CPRA SWAMP), and NOAA, and topography from the National Elevation Dataset and LiDAR from US Geological Survey (USGS). The provided data layers include the DEM, a binary water/land mask, data source flags, and eight layers with analysis weighting factors for each pixel. Elevation values are provided in meters with respect to the North American Vertical Datum of 1988 (NAVD88). The weighting factors indicate how each data source contributed to this multisource DEM. The data are provided in cloud-optimized GeoTIFF (CoG) format.
Science Keywords
- LAND SURFACE
- GEOMORPHIC LANDFORMS/PROCESSES
- COASTAL LANDFORMS
- DELTAS
- LAND SURFACE
- TOPOGRAPHY
- TERRAIN ELEVATION
- DIGITAL ELEVATION/TERRAIN MODEL (DEM)
- OCEANS
- COASTAL PROCESSES
- COASTAL ELEVATION
Data Use and Citation
This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.
Data Files
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Companion Files
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Dataset Companion Files
Dataset has 1 companion files.
- DeltaX_DEM_MRD_LA.pdf
Additional Resources
| Type | Title |
|---|---|
| Workshop | Delta-X Open Data Workshop |
| Tutorial | Delta-X Applications Workshop |