Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds: 30 year (1981 - 2010) annual average of daily intensity of precipitation for a rain event for the Conterminous United States and District of Columbia

This tabular data describes the annual average of daily intensity of precipitation for a rain event during the 30-year period 1981 – 2010 for two spatial components...本表格数据描述了1981—2010年这30年时段内，两类空间分量对应的单次降雨事件的日降水强度年平均值。