Groundwater contributing areas for Cape Cod and the Plymouth-Carver Regions of Massachusetts

This data layer contains groundwater contributing areas for streams, ponds and estuaries in the Cape Cod and the Plymouth-Carver region. Contributing areas were delineated by using regional groundwater-flow models. The percent impervious cover of each contributing area was calculated by using a statewide 1-m resolution binary rater data layer of impervious surface in2005. This is one of three data layers in this data series publication.本数据图层（data layer）涵盖科德角及普利茅斯-卡弗地区内，为溪流、池塘与河口提供补给的地下水补给区。该类补给区通过区域地下水流模型完成勾绘划定。各补给区的不透水率，采用2005年全州范围内1米分辨率的不透水面二值栅格数据图层计算得到。本数据集系列出版物共包含三个数据图层，此为其中之一。