The way in which buildings, roads, parking lots and other components of the built environment are integrated into communities impact a wide range of biogeochemical and hydrological processes. Among other effects, increased pollution discharge into streams has significant implications for the health of ecosystems. Scientists at the Woods Hole Research Center have developed new high resolution maps of the built environment , expressed in terms of impervious surface cover, for the 168,000-square-kilometer Chesapeake Bay watershed, a region that has been highly altered by human land use.
According to Scott Goetz, a senior scientist at the Woods Hole Research Center and lead author of an article in the current edition of Eos describing the work, "The information captured in these maps can be used to help mitigate impacts associated with the impervious nature of built environments, including reduced water quality, impoverished stream biota, and increased flood risk."
The new maps were developed for the region at 30-square-meter spatial resolution, and are currently being used for baseline monitoring and modeling activities in the Chesapeake Bay Program restoration effort. The Eos article focuses on use of the regional maps to assess the quality of a new national impervious cover map available at coarser (one-square-kilometer) resolution for the entire conterminous United States.
Elizabeth Braun | EurekAlert!
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