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May 18, 2022

Chesapeake Bay Program — Press Release — May 17, 2022

"The Chesapeake Bay Program, in collaboration with the Chesapeake Conservancy, U.S. Geological Survey and the University of Vermont, is pleased to announce the release of the Very High-Resolution Land Use/Land Cover and Change Data. These data update the 2013-14 High-Resolution Land Cover and Land Use Data Project, provide new land use and land cover data captured in 2017-18 and include a new data product that describes the changes in land use and land cover throughout the Chesapeake Bay watershed from 2013-14 to 2017-18.

In 2018, the U.S. Environmental Protection Agency entered into a six-year cooperative agreement with the Chesapeake Conservancy to produce land use, land cover and land change data for the watershed. This effort was intended to build upon the release of the initial one-meter data products in 2016 and 2017 that were the first and largest high-resolution land use/land cover datasets ever developed for the Chesapeake Bay watershed. When these products were released in 2016 and 2017, they provided more precise information showing small tracts of woods and individual trees in urban areas.

The new 2017-18 dataset includes a more detailed land use/land cover classification with enhanced technical and scientific information that was not previously available for the 2013-14 data products. Experts have now updated the 2013-14 datasets with this new information and are releasing a brand-new 2017-18 product. The new 2017-18 and revised 2013-14 datasets contain 54 land use/land cover classes that are grouped into a general 18 class schema. This new release includes 38 more land use/land cover classes than the original 2013-14 data product. . ."

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