James P. Lombard: Weblog Archives
May 28, 2004
Upper Gila Water Supply Study Modeling
Here is a scan of a 1990 report by the U.S. Bureau of Reclamation describing computer modeling that examined different sizes of pumping plants for taking water from the Gila River, given the constraints of other downstream flow requirements. This is one report that documents the series of computer models that are mentioned in the 1987 UGWSS Special Report on Alternatives (page 3).
Posted by: jlombard at 02:45 PM | Comments 0)
Category: Hydrogeology
May 20, 2004
Upper Gila Water Supply Study
I have scanned several documents from the United States Bureau of Reclamation (BOR) Upper Gila Water Supply Study, and from the United States Fish and Wildlife Service (FWS). These documents trace the final planning stages for a BOR project to supply New Mexico with an additional annual average of 18,000 acre-feet of water from the Gila River. Dams were initially proposed on the Gila River, but United States Fish and Wildlife Service identified endangered native fish species in the river that precluded Gila River dams. The FWS documents are:
1987 Fish and Wildlife Service Draft Report, 1988 Final Fish and Wildlife Coordination Act Report, and 1988 Final Fish and Wildlife Insteam Flow Incremental Methodology Analysis of the Gila River.
The BOR documents are:
1986 Upper Gila Water Supply Study Plan Formulation Working Document Supplement No. 1, 1986 Upper Gila Water Supply Alternative Offstream Storage Sites to Mangas Creek (partial copy only), 1986 Draft Environmental Impact Statement Upper Gila Water Supply Study, and 1987 Upper Gila Water Supply Study Special Report on Alternatives. This last document was the subject of my earlier post on May 4, 2004.
These Adobe Acrobat files range in size from 1.7mb to 84mb.
Posted by: jlombard at 06:54 PM | Comments 1)
Category: Hydrogeology
May 12, 2004
Science Meets Hollywood
A new Hollywood movie, "The Day After Tomorrow" opens on May 28th. This movie will popularize the science that the Hadley Centre, which operates the Climate at Home distributed computing climate experiment that I wrote about in February of this year, is engaged in.
Posted by: jlombard at 11:23 AM | Comments 1)
Category: Policies
May 04, 2004
Gila River
I have scanned a summary report called "Upper Gila Water Supply Study" authored by the Bureau of Reclamation in 1987. This is one report in a list of BOR reports that are housed at their offices in Phoenix. The report discusses diversion structures and off-channel dams in southwest New Mexico, and sounds very similar to the plans that Craig Roepke of the Interstate Stream Commission has been discussing.
Posted by: jlombard at 05:29 PM | Comments 0)
Category: Hydrogeology
Submarine Groundwater Discharge
Hydrologists estimate that submarine groundwater discharge to the Gulf of Mexico could be about 50% of the river discharge from the mouth of the Mississippi River. Submarine groundwater seeps out from the submerged edges of freshwater aquifers that are in contact with the sea. This is a huge volume of groundwater that enters unseen into the Gulf carrying dissolved nitrate that is potentially a significant influence on submarine ecosystems.
Posted by: jlombard at 02:57 PM | Comments 0)
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