It doesn't happen over night.
|Daytime over the Sonoran Desert. Somewhere down there is the San Pedro River, s seen from the Huachuca Mountains (photo credit goes to Wikipedia)|
Can downward trends be reversed?
|Before (left) and after (right) hydrographs of the San Pedro River. Can you see the noticeable drop in "groundwater-fed" spring baseflow in modern times? Modern times has seen the river flow lower during the summer monsoon season, too.|
Sometimes I look at hydrographs and wonder what's in store for the years ahead. Other times I wish I could have been there back before modern times settled in.
Still, and regardless, I'm looking forward to just seeing it again.
It and I still have time.