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GIS/Hydrology SOW Matrix

Surface Water Hydrology SOW 07-20-2012 Matrix Draft.pdf — PDF document, 135 kB (139162 bytes)

Gerald Schultz
Gerald Schultz says:
Jul 24, 2012 03:30 PM

Item 3a: To develop hydrograph in upper reaches of Gila Watershed. Try to find some historic peak mark that might have been undisturbed in remote areas. Use Manning's Equation or some other Slope-Area indirect method to establish an estimate of the peak flow at some past time. Use the Q/sq root of DA at some site with that of the Gila R at Gila, NM gage station to see if a balance might exist. Rainfall, being spotty, for the most part, might not be a very good input parameter. Search for old measurement records at the USGS state office in ABQ; some of these miscellaneous measurements or partial record stations might have been done and will be of a very useful resource.

Gerald Schultz
Gerald Schultz says:
Jul 24, 2012 03:38 PM

Items 1 & 2: The Southwest New Mexico Stakeholders Group back in about 2008 paid a contractor to assemble a massive amount of literature having to do with much of the Gila Basin. This included many hundreds of citations. This should be used in this work also to save a duplication of both spending public dollars as well as providing a product that was never even used-be sure to include this info so public dollars will not have been wasted.

Gerald Schultz
Gerald Schultz says:
Jul 24, 2012 03:43 PM

Item 3d: I worked for the sediment lab of the BOR in Denver for several years and they had developed many methods for determing sediment transport as well as suspended particles. They have, no doubt by now, advanced this to a well established state of the art science. Check with them at their Denver Technical Center for their latest updates.

Gerald Schultz
Gerald Schultz says:
Jul 24, 2012 03:50 PM

Additional on item 3a: I forgot to mention that in addition to searching for those misc and partial record data sets, look, also, for any flood indirect measurements that might have been made. These include the location, Q, Areas of flood across the channel, slope, and roughness coefficients, all of which will be valuable for any present work.

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