My recent trip to the University of Oklahoma was enlightening on a number of levels. Some things I expected: meeting bright students and engaged faculty, learning more about social entrepreneurship and the ethics of development from Laura Brunson, an incredibly bright PhD student whom I have known for several years. She will surely make her mark on the water world in a big way.
Perhaps the most serendipitous aspect of this visit was my last appointment on Saturday morning with Dr. Yang Hong, another U of AZ hydrology PhD ( Soroosh Sorooshian’s student) and his doctoral student, Humberto Vergara. Hong is an Associate Professor in the Department of Civil Engineering and Environmental Science (CEES) and is working with NASA developing rainfall-runoff models and other tools and assessing stream discharge using remotely-sensed (satellite) data.
An aside: my experience with and knowledge of rainfall-runoff modeling is mired somewhere in the 1990s with the likes of TOPMODEL That model is still around, no doubt greatly improved and adapted as a GIS model and capable of using the kind of data Hong had. And then there were the linear and nonlinear reservoir models I dabbled with in the late 1970s and early 1980s (see the wonderful Linear Theory of Hydrologic Systems, by James C.I. Dooge, U.S. Department of Agriculture Technical Bulletin 1468, 1973). But now I really digress.
What Hong and Vergara showed me was quite provocative. I’m not talking so much about the scientific aspects, but the management and political implications. What if you could know your neighbor’s – friend or foe – hydrology: stream discharges, rainfall-runoff characteristics, water balances, groundwater depletion and storage, etc. And what if your neighbor knew your same information? Transboundarywater management and negotiations might be a little different than they are now. Might be hard to hide data or present faulty information.
We have already seen how GRACE data provided information on the groundwater depletion in India and the response from some Indian officials (read more about GRACE here).
All the above reminded me of a situation a decade or so ago when I was involved with three riparians on a surface water project. I naively suggested that we ought to consider groundwater as well. Boy, did the walls go up, especially from one riparian who had plenty of good-quality groundwater and did not want to share data. End of discussion.
We still have a ways to go but I suspect we will get there sooner than we think. Dr. Hong told me that his rainfall-runoff model predictions have an unacceptable level of uncertainty in watersheds with areas under 10,000 square kilometers (about 3900 square miles). And then there is the issue of ground-truthing remotely-sensed data. I can hear someone denigrating remotely-sensed data by saying, "Those aren't real data."
But in the near future, resolving and managing transboundary and other water conflicts might have a different dimension, thanks to our eyes in the sky.
Next stop: water quality.
“Can’t wait” – Bart Scott, NY Jets linebacker, when asked how he felt about playing the Pittsburgh Steelers for the AFC championship
"When it comes to the future, there are three kinds of people: those who let it happen, those who make it happen, and those who wonder what happened." -John M. Richardson, Jr.
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