U.S. Geological Survey Water Supply paper, 2315. The effects of boundary conditions on the steady-state response of three hypothetical ground-water systems results and implications of numerical experiments / Franke, L. O.

Public ISBD Titre de série : U.S. Geological Survey Water Supply paper, 2315 Titre : The effects of boundary conditions on the steady-state response of three hypothetical ground-water systems results and implications of numerical experiments Type de document : texte imprimé Auteurs : Franke, L. O. ; Reilly, T. E. Mention d'édition : United States Gouvernment Printing Office Editeur : United States Gouvernment Printing Office Année de publication : 1987 ISBN/ISSN/EAN : CI-05084 Note générale : The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry. Langues : Anglais (eng) Mots-clés : Eau souterraine  Hydrogéologie  Modèle mathématique  Simulation  Calibrage Index. décimale : 551.48 Hydrologie : Résumé : The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry. Note de contenu : The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry. U.S. Geological Survey Water Supply paper, 2315. The effects of boundary conditions on the steady-state response of three hypothetical ground-water systems results and implications of numerical experiments [texte imprimé] / Franke, L. O. ; Reilly, T. E.  . -  United States Gouvernment Printing Office . - United States Gouvernment Printing Office, 1987. ISSN : CI-05084 The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry. Langues : Anglais (eng) Mots-clés : Eau souterraine  Hydrogéologie  Modèle mathématique  Simulation  Calibrage Index. décimale : 551.48 Hydrologie : Résumé : The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry. Note de contenu : The most critical difficult aspect of defining a groundwater system or problem for conceptual analysis or numerical simulation is the selection of boundary conditions on the steady-state response of otherwise similar ground-water systems to a pumping stress. Three series of numerical experiments illustrate the behavior of three hypothetical ground-water systems that are rectangular sand prisms with the same dimensions but with different combinations of constant-head, specified-heat, no-flow, and constant-flux boundary conditions. In the first series of numerical experiments, the heads and flows in all three systems are identical, as are the hydraulic conductivity and system geometry.

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U.S. Geological Survey Water Supply paper, 2319. Effect of water quality on survival of Lahontan Cutthroat trout eggs in the Truckee River, West-central Nevada and Estern California / Hoffman, R. J.

Public ISBD Titre de série : U.S. Geological Survey Water Supply paper, 2319 Titre : Effect of water quality on survival of Lahontan Cutthroat trout eggs in the Truckee River, West-central Nevada and Estern California Type de document : texte imprimé Auteurs : Hoffman, R. J. ; Scoppettone, G. G. Mention d'édition : United States Gouvernment Printing Office Editeur : United States Gouvernment Printing Office Année de publication : 1988 ISBN/ISSN/EAN : CI-05085 Note générale : The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth. Langues : Anglais (eng) Mots-clés : Qualité de l'eau  Eau de surface  Eau souterraine  Analyse chimique  Analyse physique  Hydrochimie  Température de l'eau Index. décimale : 551.48 Hydrologie : Résumé : The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth. Note de contenu : The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth. U.S. Geological Survey Water Supply paper, 2319. Effect of water quality on survival of Lahontan Cutthroat trout eggs in the Truckee River, West-central Nevada and Estern California [texte imprimé] / Hoffman, R. J. ; Scoppettone, G. G.  . -  United States Gouvernment Printing Office . - United States Gouvernment Printing Office, 1988. ISSN : CI-05085 The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth. Langues : Anglais (eng) Mots-clés : Qualité de l'eau  Eau de surface  Eau souterraine  Analyse chimique  Analyse physique  Hydrochimie  Température de l'eau Index. décimale : 551.48 Hydrologie : Résumé : The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth. Note de contenu : The U. S. Fich and Wildlife service has an ongoing program to assess the feasibility of restablishing naturally spawning populations of Lahonton Cutthroat trout in the Truckee Riverpyramid lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of Cutthroat trout eggs a tificially planted in potential spawning gravels in the Truckee river dowstream from Reno. The relation between ambient river-quality a trout-egg incubation period that began march 10, 1980. Five sites were monitored : two upstream from Reno, one near Reno, and two downstream from Wadsworth.

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U.S. Geological Survey Water Supply paper, 2323. Aqueous geochemistry of the Magothy aquifer, Maryland / Knobel, L. L.

Public ISBD Titre de série : U.S. Geological Survey Water Supply paper, 2323 Titre : Aqueous geochemistry of the Magothy aquifer, Maryland Type de document : texte imprimé Auteurs : Knobel, L. L. ; Phillips, S. W. Mention d'édition : United States Gouvernment Printing Office Editeur : United States Gouvernment Printing Office Année de publication : 1988 ISBN/ISSN/EAN : CI-05086 Note générale : The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient. Langues : Anglais (eng) Mots-clés : Eau souterraine  Hydrochimie  Bassin HYDROGEOLOGIE  Hydrogéologie  Géochimie aqueuse  Bassin versant de Magothy  Stabilité minérale  Evolution chimique Index. décimale : 551.48 Hydrologie : Résumé : The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient. Note de contenu : The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient. U.S. Geological Survey Water Supply paper, 2323. Aqueous geochemistry of the Magothy aquifer, Maryland [texte imprimé] / Knobel, L. L. ; Phillips, S. W.  . -  United States Gouvernment Printing Office . - United States Gouvernment Printing Office, 1988. ISSN : CI-05086 The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient. Langues : Anglais (eng) Mots-clés : Eau souterraine  Hydrochimie  Bassin HYDROGEOLOGIE  Hydrogéologie  Géochimie aqueuse  Bassin versant de Magothy  Stabilité minérale  Evolution chimique Index. décimale : 551.48 Hydrologie : Résumé : The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient. Note de contenu : The Upper Cretaceous Magothy formation of the Atlantic coastal plain is a seaward-dipping strand-zone deposit of fluviomarine origin that crops out in irregular belt in Maryland. Southwest of the outcrop, the Magothy formation is overlain by younger strata. Chemical analyses of water samples from the Magothy aquifer, Maryland, indicate several hydrochemical facies. The origin of these hydrochemical facies is related to the source of recharge an the chemical processes that occur as water flows downgradient.

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U.S. Geological Survey Water Supply paper, 2335. Rainfall and runoff quantity and quality characteristics of four urban land-use catchments in Fresno, California, october 1981 to april 1983 / Altmann, R. N.

Public ISBD Titre de série : U.S. Geological Survey Water Supply paper, 2335 Titre : Rainfall and runoff quantity and quality characteristics of four urban land-use catchments in Fresno, California, october 1981 to april 1983 Type de document : texte imprimé Auteurs : Altmann, R. N. ; Shulters, M. V. Mention d'édition : United States Gouvernment Printing Office Editeur : United States Gouvernment Printing Office Année de publication : 1989 ISBN/ISSN/EAN : CI-05061 Note générale : Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions. Langues : Anglais (eng) Mots-clés : PRECIPITATIONS  Ruissellement  Urbanisme  Qualité de l'eau  Analyse de données Index. décimale : 551.48 Hydrologie : Résumé : Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions. Note de contenu : Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions. U.S. Geological Survey Water Supply paper, 2335. Rainfall and runoff quantity and quality characteristics of four urban land-use catchments in Fresno, California, october 1981 to april 1983 [texte imprimé] / Altmann, R. N. ; Shulters, M. V.  . -  United States Gouvernment Printing Office . - United States Gouvernment Printing Office, 1989. ISSN : CI-05061 Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions. Langues : Anglais (eng) Mots-clés : PRECIPITATIONS  Ruissellement  Urbanisme  Qualité de l'eau  Analyse de données Index. décimale : 551.48 Hydrologie : Résumé : Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions. Note de contenu : Rainfall an runoff quantity and quality were monitored for industrial, single-duvelling residential, multiple-dwelling residential, and commercial land-use catchments during the 1981 - 82 and 1982 - 83 rain seasons. Storm-composite rainfall and discrete runoff samples were analysed for numerous inorganic, biological, physical and organic constituents. Atmospheric dry-deposition and street-surface particulate samples also were collected and analyzed. With the exception of the industrial catchment, the highest runoff concentrations for most constituents occurred during the initial storm runoff and then decreased throughout the remainder of the storm, independant of hydraulic conditions.

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U.S. Geological Survey Water Supply paper, 2370. Etimation soil matric potential in owens valley, California / Sorenson, S. K.

Public ISBD Titre de série : U.S. Geological Survey Water Supply paper, 2370 Titre : Etimation soil matric potential in owens valley, California Type de document : texte imprimé Auteurs : Sorenson, S. K. ; Miller, R. F. ; Welch, M. R. Mention d'édition : United States Gouvernment Printing Office Editeur : United States Gouvernment Printing Office Année de publication : 1989 ISBN/ISSN/EAN : CI-05062 Note générale : Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures. Langues : Anglais (eng) Mots-clés : Eau souterraine  Sol  Evaluation  Modèle mathématique  Méthode d'évaluation Index. décimale : 551.49 Eaux souterraines Résumé : Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures. Note de contenu : Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures. U.S. Geological Survey Water Supply paper, 2370. Etimation soil matric potential in owens valley, California [texte imprimé] / Sorenson, S. K. ; Miller, R. F. ; Welch, M. R.  . -  United States Gouvernment Printing Office . - United States Gouvernment Printing Office, 1989. ISSN : CI-05062 Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures. Langues : Anglais (eng) Mots-clés : Eau souterraine  Sol  Evaluation  Modèle mathématique  Méthode d'évaluation Index. décimale : 551.49 Eaux souterraines Résumé : Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures. Note de contenu : Evaluation of the modeling technique at two study sites indicated that estimates of soil matric potential within 0,5 per units of the soil matric potential value derived by using the filter-paper method could be obtained 90 to 95 percent of the time in soils where water content was less than field capacity. The greatest errors occured at depths where there was a distinct transition between soils of different textures.

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U.S. Geological Survey Watter Supply paper, 2324. The geochemical evolution of aqueous sodium in the black creek aquifer, Horry anf Georgetown countries, South Carolina / Zack, A.

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United States Geological Survey Water-Supply, 2282. Tidal-flow, circulation, and flushing changes caused by dredge and fill in Tampa Bay, Florida / Goodwin, R. C.

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United States Géological Survey water-Supply paper, 2308. Methods and computer program documentation for determining anisotropic transmissivity tensor components of two-dimensional ground-water flow / Maslia, L. M.

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US. Geological survey Water supply Paper, 2213. Acoustic systems for the measurement of streamflow / Laenen, A.

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