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USGS Publishes New Data Series Highlighting CWPPRA
Bill Jones, Adrienne Garber, and the advanced coastal technologies team have a new U.S. Geological Survey Data Series publication titled "Classifications for Coastal Wetlands Planning, Protection and Restoration Act Site-Specific Projects: 2010" U.S.G.S. Data Series 745, 8 p. and 10 maps. The new report can be found at http://pubs.usgs.gov/ds/745/. This "Data Series" contains a brief introduction of CWPPRA, description of the different types of CWPPRA monitoring projects, how color-infrared aerial photography is obtained, and the research methods used in creating a land-water classification. The site-specific flights that were done in 2010 are also highlighted in this paper along with maps, data, and metadata.
Abstract
The Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) funds over 100 wetland restoration projects across Louisiana. Integral to the success of CWPPRA is its long-term monitoring program, which enables State and Federal agencies to determine the effectiveness of each restoration effort. One component of this monitoring program is the classification of high-resolution, color-infrared aerial photography at the U.S. Geological Survey's National Wetlands Research Center in Lafayette, Louisiana.
Color-infrared aerial photography (9- by 9-inch) is obtained before project construction and several times after construction. Each frame is scanned on a photogrametric scanner that produces a high-resolution image in Tagged Image File Format (TIFF). By using image-processing software, these TIFF files are then orthorectified and mosaicked to produce a seamless image of a project area and its associated reference area (a control site near the project that has common environmental features, such as marsh type, soil types, and water salinities.) The project and reference areas are then classified according to pixel value into two distinct classes, land and water. After initial land and water ratios have been established by using photography obtained before and after project construction, subsequent comparisons can be made over time to determine land-water change.
Bill Jones, Adrienne Garber, and the advanced coastal technologies team have a new U.S. Geological Survey Data Series publication titled "Classifications for Coastal Wetlands Planning, Protection and Restoration Act Site-Specific Projects: 2010" U.S.G.S. Data Series 745, 8 p. and 10 maps. The new report can be found at http://pubs.usgs.gov/ds/745/. This "Data Series" contains a brief introduction of CWPPRA, description of the different types of CWPPRA monitoring projects, how color-infrared aerial photography is obtained, and the research methods used in creating a land-water classification. The site-specific flights that were done in 2010 are also highlighted in this paper along with maps, data, and metadata.
Abstract
The Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) funds over 100 wetland restoration projects across Louisiana. Integral to the success of CWPPRA is its long-term monitoring program, which enables State and Federal agencies to determine the effectiveness of each restoration effort. One component of this monitoring program is the classification of high-resolution, color-infrared aerial photography at the U.S. Geological Survey's National Wetlands Research Center in Lafayette, Louisiana.
Color-infrared aerial photography (9- by 9-inch) is obtained before project construction and several times after construction. Each frame is scanned on a photogrametric scanner that produces a high-resolution image in Tagged Image File Format (TIFF). By using image-processing software, these TIFF files are then orthorectified and mosaicked to produce a seamless image of a project area and its associated reference area (a control site near the project that has common environmental features, such as marsh type, soil types, and water salinities.) The project and reference areas are then classified according to pixel value into two distinct classes, land and water. After initial land and water ratios have been established by using photography obtained before and after project construction, subsequent comparisons can be made over time to determine land-water change.
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