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Land area in coastal Louisiana (1932 to 2016) - land area spatial data - multi-date composites for specific years


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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,


Coastal Louisiana wetlands are one of the most critically threatened environments in the United States. These wetlands are in peril because Louisiana currently experiences greater coastal wetland loss than all other States in the contiguous United States combined. The datasets presented here were utilized in a larger effort to quantify landscape changes from 1932 to 2016. Analyses show that coastal Louisiana has experienced a net change in land area of approximately -4,833 square kilometers (modeled estimate: -5,197 +/- 443 square kilometers) from 1932 to 2016. This net change in land area amounts to a decrease of approximately 25 percent of the 1932 land area. Previous studies have presented linear rates of change over multidecadal [...]

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Point of Contact :
Brady Couvillion
Originator :
Brady Couvillion
Metadata Contact :
Brady Couvillion
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :

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The land area datasets presented here utilized historical surveys, aerial, and satellite data to quantify land area for time periods ranging from 1932 to 2016. These data are multi-date composites, intended to represent an approximate year during that range. These data are intended for coastwide and basin level analyses. Temporally, they are intended for use in calculation of long-term (decadal or longer) average trends. They may not be appropriate at finer spatial or temporal scales.

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DOI doi:10.5066/P99LJJZZ

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