Skip to main content

Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data


Publication Date
Start Date
End Date


Beck, H.J., Couvillion, B.R., Dugas, J., Garber, A., and Mouton, K., 2021, Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data: U.S. Geological Survey data release,


Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for monitoring. The CRMS program includes a suite of approximately 398 sites that encompass the range of hydrological and ecological conditions for each stratum. As part of CRMS, land and water classifications are created from Digital Orthophoto Quarter Quadrangles (DOQQs) approximately every three years at all CRMS sites. A DOQQ is a raster image in [...]

Child Items (398)


Point of Contact :
Holly J Beck
Process Contact :
Holly J Beck
Originator :
Holly J Beck, Brady Couvillion, Jason Dugas, Adrienne Garber, Rosemary (Contractor) Mouton
Metadata Contact :
Holly J Beck
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :

Attached Files

Click on title to download individual files attached to this item.


The intended use of this data set is to provide information to aid efforts in the conservation, restoration, creation, and enhancement of Louisiana's coastal wetlands. The land-water data is used to measure the occurrence, locations, and rates of land loss/land gain for CRMS and CRMS-like sites.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9AZOHQU

Item Actions

View Item as ...

Save Item as ...

View Item...