Reach Address Database (RAD)

The Reach Address Database (RAD) stores the reach address of each Water Program feature that has been linked to the underlying surface water features (streams, lakes,...河段地址数据库（Reach Address Database, RAD）存储了所有与底层地表水体要素（溪流、湖泊等）关联的水项目（Water Program）地理要素的河段地址。