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Auteur David Arthur Stonestrom |
Documents disponibles écrits par cet auteur (3)
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1703 - Ground-Water Recharge in the Arid and Semiarid Southwestern United States (Bulletin de U.S. Geological Survey professional paper, 1703 [01/01/2007])
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Titre : 1703 - Ground-Water Recharge in the Arid and Semiarid Southwestern United States Type de document : texte imprimé Auteurs : David Arthur Stonestrom, Auteur Année de publication : 2007 Importance : 1 vol. (vii-414 p.) Présentation : ill. en noir et coul., cartes, couv. ill. en coul. Format : 28 cm Langues : Américain (ame) Résumé : The timing and location of streamflow in the San Pedro River are partially dependent on the aerial distribution of recharge in the Sierra Vista subwatershed. Previous investigators have assumed that recharge in the subwatershed occurs only along the mountain fronts by way of stream-channel infiltration near the contact between low-permeability rocks of the mountains and the basin fill. Recent studies in other alluvial basins of the Southwestern United States, however, have shown that significant recharge can occur through the sediments of ephemeral stream channels at locations several kilometers distant from the mountains. The purpose of this study was to characterize the spatial distribution of infiltration and subsequent recharge through the ephemeral channels in the Sierra Vista subwatershed.
Infiltration fluxes in ephemeral channels and through the basin floor of the subwatershed were estimated by using several methods. Data collected during the drilling and coring of 16 boreholes included physical, thermal, and hydraulic properties of sediments; chloride concentrations of sediments; and pore-water stable-isotope values and tritium activity. Surface and subsurface sediment temperatures were continuously measured at each borehole.[n° ou bulletin]Exemplaires(1)
Code-barres Origine Cote Support Section Disponibilité FFS035842 2.2 USGS PP Périodiques Géographique Exclu du prêt 1260 - Heat as a tool for studying the movement of ground water near streams (Bulletin de U.S. Geological Survey circular, 1260 [01/01/2003])
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Titre : 1260 - Heat as a tool for studying the movement of ground water near streams Type de document : texte imprimé Auteurs : David Arthur Stonestrom, Éditeur scientifique ; Jim Constantz, Éditeur scientifique Année de publication : 2003 Importance : 96 p. Langues : Américain (ame) [n° ou bulletin]Exemplaires(1)
Code-barres Origine Cote Support Section Disponibilité FFS001981 2.2 USGS USG Périodiques Géographique Exclu du prêt 1703-1 - Thermal Methods for Investigating Ground-Water Recharge (Bulletin de U.S. Geological Survey professional paper, 1703-1 [01/01/2006]) / Kyle W. Blasch
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Titre : 1703-1 - Thermal Methods for Investigating Ground-Water Recharge Type de document : texte imprimé Auteurs : Kyle W. Blasch, Auteur ; Jim Constantz, Auteur ; David Arthur Stonestrom, Auteur Année de publication : 2006 Importance : 1 vol. (?? p.) Présentation : ill. en coul., cartes, couv. ill. en coul. Format : 28 cm Langues : Américain (ame) Résumé : Recharge of aquifers within arid and semiarid environments is defined as the downward flux of water across the regional water table. The introduction of recharging water at the land surface can occur at discreet locations, such as in stream channels, or be distributed over the landscape, such as across broad interarroyo areas within an alluvial ground-water basin. The occurrence of recharge at discreet locations is referred to as focused recharge, whereas the occurrence of recharge over broad regions is referred to as diffuse recharge. The primary interest of this appendix is focused recharge, but regardless of the type of recharge, estimation of downward fluxes is essential to its quantification. Like chemical tracers, heat can come from natural sources or be intentionally introduced to infer transport properties and aquifer recharge. The admission and redistribution of heat from natural processes such as insolation, infiltration, and geothermal activity can be used to quantify subsurface flow regimes. Heat is well suited as a ground-water tracer because it provides a naturally present dynamic signal and is relatively harmless over a useful range of induced perturbations. [n° ou bulletin]