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Yay! San Diego reservoirs filling up

I pixeled a response to Mr. Bauder, but it somehow never got posted. I will try to re-create it here and hope once again for the best. I appreciate your calling me on the numbers. A good answer goes beyond a byte a bit, but they are derived from CIMIS data ( http://missionrcd.org/wp-content/uploads/2014/04/… ), which indicate an annual evapotranspiration of about six feet. That's the theoretical MINIMUM amount of water required to keep grass green all year. After that, one needs actual data from actual cases, meaning actual APPLIED water. Various inefficiencies of the applied (irrigation) methods and procedures make the reality part of the picture go up from there. Sprinklers, for example, atomize a significant fraction of the water, which evaporates before it hits the ground. Simple "overwatering" (applying more than the amount actually required) is even more significant. I remember, but cannot cite, research that revealed that applications rates of two or three times the CIMIS minimum were common; hence the (conservative?) doubling of the base requirement of six feet. Big trees, with their heads up high were the winds are stronger can add to the actual base rate in any give situation. I know this isn't perfect, but I hope it's better than my previous attempt to put some numbers on the situation.
— April 1, 2017 6:58 p.m.

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