Attributes for NHDPlus Catchments (Version 1.1)for the Conterminous United States: Contact Time, 2002
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This data set represents the average contact time, in units of days, compiled for every catchment of NHDPlus for the conterminous United States. Contact time, as...
本数据集统计了美国本土(conterminous United States)范围内所有NHDPlus汇水区的平均接触时间,单位为天。接触时间,即……



