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Circa 1956 Land Area in Coastal Louisiana - Original Data Source - National Wetlands Inventory - Revisions to Georectification

Dates

Publication Date
Start Date
1956
End Date
1958

Citation

Couvillion, B.R., 2018, Land area in coastal Louisiana (1932 to 2016) - land area spatial data - multi-date composites for specific years: U.S. Geological Survey data release, https://doi.org/10.5066/P99LJJZZ.

Summary

The dataset presented here represents a circa 1956 land/water delineation of coastal Louisiana used in part of a larger study to quantify landscape changes from 1932 to 2016. The original dataset was created by the U.S. Fish and Wildlife Service, Office of Biological Services. The USGS Wetland and Aquatic Research Center altered the original data by improving the geo-rectification in specific areas known to contain geo-rectification error, most notably in coastal wetland areas in the vicinity of Four League Bay in western Terrebonne Basin. The dataset contains two categories, land and water. For the purposes of this effort, land includes areas characterized by emergent vegetation, upland, wetland forest, or scrub-shrub were classified [...]

Contacts

Point of Contact :
Brady Couvillion
Originator :
Brady Couvillion
Metadata Contact :
Brady Couvillion
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Extension: 1956_nwi_data_reclass_lw_autosync_results_040411.zip
1956_nwi_data_reclass_lw_autosync_results_040411.tfw 92 Bytes
1956_nwi_data_reclass_lw_autosync_results_040411.tif 3.38 MB
1956_nwi_data_reclass_lw_autosync_results_040411.tif.ovr thumbnail 863.89 KB
1956_nwi_data_reclass_lw_autosync_results_040411.tif.vat.cpg 5 Bytes
1956_nwi_data_reclass_lw_autosync_results_040411.tif.vat.dbf 506 Bytes

Purpose

The purpose of this dataset is to provide landscape scale land area estimates for coastal Louisiana for a time period approximating 1956. This data is intended for coarse-scale ecological applications and is not appropriate for other applications. The spatial dataset was originally developed by the U.S. Fish and Wildlife Service, Office of Biological Services for use in landscape and basin scale calculations and is not appropriate at finer spatial scales. The only revisions to the original USFWS dataset performed by USGS were revisions to the geo-rectification of the dataset in regions in which the geo-rectification was known to be erroneous.

Map

Spatial Services

ScienceBase WMS

ScienceBase WCS

Communities

  • USGS Wetland and Aquatic Research Center

Tags

Provenance

Data source
Input directly

Additional Information

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