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Mississippi Alluvial Plain Extent, November 2017

Metadata Updated: January 7, 2026

The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region.
This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region.
The Mississippi Alluvial Plain extent was delineated using GIS tools to represent the geographic extent of the Mississippi Alluvial Aquifer through incorporation of elevation information, geomorphology knowledge, ecological region extent, and previously published extents for part of the MAP region.
The current MAP extent represents version 1.0. Future changes to the MAP extent will be tracked through increasing version numbers.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date January 7, 2026
Metadata Updated Date January 7, 2026

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date January 7, 2026
Metadata Updated Date January 7, 2026
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/USGS_5a8c97c1e4b069906054df6e
Data Last Modified 2020-08-27T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 460edeff-874f-4fd2-ae8d-ca35acb1683d
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -92.793072574, 28.902550399, -88.254164089, 37.412257973
Source Datajson Identifier True
Source Hash 5f3a101a15cd902e5f2ec80b329e591cb112c34e0d3f5258b2315d02080a8b17
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -92.793072574, 28.902550399, -92.793072574, 37.412257973, -88.254164089, 37.412257973, -88.254164089, 28.902550399, -92.793072574, 28.902550399}

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