3 ms·
The relevant area is probably the watershed. In general, moving water between watersheds is hard, but within a watershed redistribution is possible. So total ra
by jameshart 8y ago
The relevant area is probably the watershed. In general, moving water between watersheds is hard, but within a watershed redistribution is possible. So total rainfall within a given watershed basically defines the water supply. http://digg.com/2016/river-basin-map-us http://digg.com/2016/river-basin-map-us