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Land area change in Coastal Louisiana (1932 to 2016) - persistent land change spatial data


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Couvillion, B.R., Beck, H.J., Schoolmaster, D.R., and Fischer, M., 2018, Land area change in Coastal Louisiana (1932 to 2016) - persistent land change spatial data: 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 analyses of landscape change presented here have utilized historical surveys, aerial, and satellite data 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 [...]


Point of Contact :
Brady Couvillion
Process Contact :
Brady Couvillion
Originator :
Brady Couvillion, Holly J Beck, Donald R Schoolmaster, Michelle Fischer
Metadata Contact :
Brady Couvillion
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
SDC Data Owner :
Wetland and Aquatic Research Center

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sim_3381_persistent_change_spatial_data_092616.img 18.46 MB application/unknown
sim_3381_persistent_change_spatial_data_092616.rrd 3.86 MB application/unknown


The purpose of this study is to provide updated estimates of persistent land change for coastal Louisiana and for each hydrologic basin, as defined by the Coastal Wetlands Planning, Protection and Restoration Act Program (n.d.), for the 1932-2010 period of record. The spatial dataset outlines persistent changes only, and as such is not appropriate for representing a particular date in time, nor is it appropriate for change rate calcualtion.

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DOI doi:10.5066/F74B30JM

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