Record Display for the EPA National Library Catalog


Main Title Quantitative Hydrologic Study of a Closed Basin with a Playa (Estancia Valley, New Mexico).
Author DeBrin, Bruce E. ;
CORP Author New Mexico Inst. of Mining and Technology, Socorro.
Year Published 1971
Report Number OWRR-B-005-NMEX; 14767,; B005-NMEX(2)
Stock Number PB-223 928
Additional Subjects ( Hydrogeology ; Playas) ; ( Ground water ; Playas) ; Darcys law ; Semiarid land ; Water balance ; Estancia Valley ; New Mexico ; Evaporation ; Geology ; Hydrology ; Aquifers ; Climate ; Computer programs ; FORTRAN ; Theses ;
Library Call Number Additional Info Location Last
NTIS  PB-223 928 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 180p
Few quantitative hydrologic studies of closed basins discharging ground water through playa systems have been made. A water budget was determined for a small test area of the Estancia Valley in central New Mexico which offers a unique, highly saline, perennially moist, environment in its playa discharge region. Ground water inflow was determined by Darcy's Law in the form: Q = TIL, using the results of several aquifer tests and water level data from a well monitoring program. Evaporative discharge was determined from climatic data, collected at a weather station located on a playa near the test area, utilizing several existing techniques. These techniques were modified and adapted to fit the unique conditions of the Estancia playas. Computer programs were developed to process the climatic data. The results show that between 340 and 455 acre-feet of ground water is discharged by evaporation in the test area each year. Extending these results to the entire Estancia system shows that between 27,000 and 36,000 acre-feet of ground water is discharged annually by the playas. (Author)