Hydrogeomorphic data along transitioning Coastal Plain rivers (Mattaponi and Pamunkey Rivers): implications for a rising sea level

Data on changing hydrogeomorphic characteristics along river gradients from nontidal through tidal freshwater to oligohaline reaches along the Mattaponi and Pamunkey Rivers, Virginia. Shapefile data include location and elevation profiles of the river valleys along multiple digital cross-sections from lidar digital elevation models, satellite visible imagery, and geographic information system analysis. These data were used to help interpret fundamental changes in regime along rivers as they transition from watersheds into the coastal zone.本数据集涵盖弗吉尼亚州马特波尼河（Mattaponi River）与帕芒基河（Pamunkey River）沿线，沿河流梯度从无潮汐河段经潮汐淡水河段至寡盐度河段的动态水文地貌（hydrogeomorphic）特征变化数据。形状文件（Shapefile）数据包含依托激光雷达（LiDAR）数字高程模型、卫星可见光影像及地理信息系统（GIS）分析得到的多条数字化断面沿线的河谷位置与高程剖面信息。本数据集可用于解析河流从流域向海岸带过渡过程中，其水文情势沿程发生的根本性变化。