Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Bedrock Permeability Classes

This tabular data set represents bedrock permeability classes compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous...本表格数据集（tabular data set）收录了为美国本土（原文未完整给出）范围内NHDPlus第2版数据集套件（NHDPlusv2）的两类空间组分（spatial components）所汇编的基岩渗透率分级（bedrock permeability classes）数据。