Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds: 30 year (1981 - 2010) average of annual maximum duration of consecutive dry and wet days per event for the Conterminous United States and District of Columbia

This tabular data describes the average of annual maximum duration of consecutive dry and wet days per event, where precipitation totals are 0 or equal and exceeds 1...本表格数据集描述了逐事件下连续干旱日与连续湿润日的年度最长持续时长的平均值，其中涉及的降水量总量为0或大于等于1……