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Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices


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Beck, H.J., Couvillion, B.R., Dugas, J., Garber, A., and Mouton, K., 2021, Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices: 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 to determine the efficacy of these projects. 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 390 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. This dataset consists of a matrix [...]

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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

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CRMS_2018_Matrix_Data_Table_All_Dates_Final.xlsx 224.16 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet


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 sites.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9MHMCFS

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