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

This tabular data describes the annual average duration of consecutive wet and dry events during the 30-year period 1981 – 2010 for two spatial components of the...本表格数据集记述了1981年至2010年这一30年时段内，对应两个空间分量的连续湿润事件与连续干旱事件的年平均持续时长。