Coastwide Reference Monitoring System (CRMS) 2021 Site 0121 land-water classification data

Dates

Publication Date: 2023-08-28
Time Period: 2021-11-15

Citation

Beck, H.J., Dugas, J., Garber, A., Couvillion, B., and Fischer, M., 2023, Coastwide Reference Monitoring System (CRMS) 2021 land-water classification data, Eastern Louisiana: U.S. Geological Survey data release, https://doi.org/10.5066/P9109FW1.

Summary

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 [...]

Summary

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 which displacement in the image caused by sensor orientation and terrain relief has been removed and combines the image characteristics of a photo with geometric qualities of a map. The DOQQs generated for this project consist of 2021 Color Infrared (CIR) Digital Imagery. These images were classified into land and water categories using a threshold of the near infrared (NIR) band, followed by supervised and unsupervised classification. Initial classification results are then reviewed by multiple image analysts to identify and manually recode errors. The final land-water classifications are intended to serve as both geographic and quantitative assessments of landscape composition on the date of acquisition. Five previous assessments have been conducted (2005, 2008, 2012, 2015/2016, and 2018). Once the program creates enough data points for statistical analyses, these data will be used for land area change rate calculation.

Contacts

Point of Contact :: U.S. Geological Survey, Wetland and Aquatic Research Center, Holly J. Beck
Process Contact :: Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region, Holly J Beck, U.S. Geological Survey, Southeast Region
Originator :: U.S. Geological Survey, Wetland and Aquatic Research Center, Beck, Holly J., Dugas, Jason, Garber, Adrienne, Couvillion, Brady, Fischer, Michelle
Metadata Contact :: U.S. Geological Survey, Wetland and Aquatic Research Center, Holly Beck
Publisher :: U.S. Geological Survey, Wetland and Aquatic Research Center
Distributor :: U.S. Geological Survey - ScienceBase

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Extension: CRMS_2021_Land_Water_Classification_CRMS0121.zip
CRMS_2021_Land_Water_Classification_CRMS0121.pdf		1.8 MB
CRMS_2021_Land_Water_Classification_CRMS0121.tfw		90 Bytes
CRMS_2021_Land_Water_Classification_CRMS0121.tif		258.93 KB
CRMS_2021_Land_Water_Classification_CRMS0121.tif-ColorRamp.SLD		2.06 KB
CRMS_2021_Land_Water_Classification_CRMS0121.tif.vat.cpg		5 Bytes
CRMS_2021_Land_Water_Classification_CRMS0121.tif.vat.dbf		906 Bytes
CRMS_2021_Land_Water_Classification_CRMS0121.tif.xml Original FGDC Metadata	View	28.9 KB

Related External Resources

Type: Online Link

Web Link	http://www.lacoast.gov

Type: webLink

ESRI Metadata Profile	http://www.esri.com/metadata/esriprof80.html

Purpose

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 Site 0121.

Coastwide Reference Monitoring System (CRMS) 2021 Site 0121 land-water classification data

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