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Delineation Of The Railroad Valley Flow System Using A Deuterium Calibrated Groundwater Model
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Book Synopsis Delineation of the Railroad Valley Flow System Using a Deuterium-calibrated Groundwater Model by : James G. Roth
Download or read book Delineation of the Railroad Valley Flow System Using a Deuterium-calibrated Groundwater Model written by James G. Roth and published by . This book was released on 1988 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Deuterium-calibrated, Discrete-state Compartment Model of Regional Groundwater Flow, Nevada Test Site and Vicinity by :
Download or read book A Deuterium-calibrated, Discrete-state Compartment Model of Regional Groundwater Flow, Nevada Test Site and Vicinity written by and published by . This book was released on 1992 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Mixing-cell Model of the Railroad Valley Regional Groundwater Flow System, Central Nevada by : James G. Roth
Download or read book A Mixing-cell Model of the Railroad Valley Regional Groundwater Flow System, Central Nevada written by James G. Roth and published by . This book was released on 1989 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Deuterium Calibrated, Discrete State Compartment Model of Regional Groundwater Flow in the Diamond Valley Area, Central Nevada by : Kevin Edward Meaney
Download or read book A Deuterium Calibrated, Discrete State Compartment Model of Regional Groundwater Flow in the Diamond Valley Area, Central Nevada written by Kevin Edward Meaney and published by . This book was released on 1992 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A deuterium-calibrated, discrete-state compartment model of regional groundwater flow, Nevada Test Site and vicinity by : William Reagan Sadler
Download or read book A deuterium-calibrated, discrete-state compartment model of regional groundwater flow, Nevada Test Site and vicinity written by William Reagan Sadler and published by . This book was released on 1990 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Three-dimensional Numerical Model of Predevelopment Conditions in the Death Valley Regional Ground-water Flow System, Nevada and California by :
Download or read book A Three-dimensional Numerical Model of Predevelopment Conditions in the Death Valley Regional Ground-water Flow System, Nevada and California written by and published by . This book was released on 2002 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EFFECTIVE MODEL CALIBRATION OF THE GEOLOGICALLY COMPLEX DEATH VALLEY REGIONAL GROUND-WATER FLOW SYSTEM, NEVADA AND CALIFORNIA. by :
Download or read book EFFECTIVE MODEL CALIBRATION OF THE GEOLOGICALLY COMPLEX DEATH VALLEY REGIONAL GROUND-WATER FLOW SYSTEM, NEVADA AND CALIFORNIA. written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical ground-water flow model is being constructed for the Death Valley regional ground-water system, an area that encompasses approximately 80,000 km2 in southern Nevada and southeastern California. Effective construction and calibration of the regional-scale steady-state flow model, developed using MODFLOW-2000, is dependent upon integration of hydrogeologic data and parameter-estimation techniques. A three-dimensional hydrogeologic-framework model of the region was initially constructed to provide a conceptual model of the geometry, composition, and hydraulic properties of the materials that control the regional ground-water flow system. This framework was resampled at the scale of the flow model to define the hydrogeologic units present in each of the 15 flow-model layers. In addition, there are non-traditional types of geologic data in the hydrogeologic-framework model that are used during flow-model calibration. For each hydrogeologic unit, the spatial distribution of geologic features important to the hydrologic system is defined. The volumetric cells can be populated by various hydrogeologic data such as the hydrogeologic unit, lithology, hydraulic conductivity, faulting, tectonic features, stratigraphic or lithologic facies, porosity, and derivative data calculated from these attributes. The approach for using this arsenal of geologic data is dependent on utilizing parameter-estimation techniques available within MODFLOW-2000. The principle of parsimony is used throughout the flow-modeling process so that a simple conceptual model is methodically made more complex. Initially, the most basic conceptual model that could reasonably define the flow system was constructed and geologic units were grouped into four major hydrogeologic units. Only major geologic structures were included; there was little structural or stratigraphic differentiation, and a minimum number of parameters were used. As the calibration process progresses, additional complexity is added to the flow model. Evaluation of the flow model is based on analysis of several MODFLOW-2000 functions such as composite scaled sensitivity, weighted and unweighted hydraulic-head and flow residuals, comparison of parameter estimates with reasonable values based on previous studies, and parameter correlations. These functions provide information on whether the available hydraulic-head and ground-water discharge data are likely to be sufficient to estimate parameter values and to subdivide parameters into more detailed units. If sufficient data are available then a parameter can be subdivided into several parameters that represent specific distinguishing hydrogeologic features. For example, in the Death Valley region the lower carbonate aquifer is widely distributed and although regionally uniform, areas with unique hydrologic characteristics exist. Although the lower carbonate aquifer was initially considered one hydrogeologic unit with one set of hydrologic properties, it has been progressively subdivided into different structural and stratigraphic regions with unique hydrologic properties. The best flow model consists of the fewest number of parameters that can adequately describe the flow system and meet the modeling objectives.
Book Synopsis Bibliography and Index of Geology by :
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1990 with total page 1660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Three-dimensional Numerical Model of Predevelopment Conditions in the Death Valley Regional Ground-water Flow System, Nevada and California by :
Download or read book A Three-dimensional Numerical Model of Predevelopment Conditions in the Death Valley Regional Ground-water Flow System, Nevada and California written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1990's, two numerical models of the Death Valley regional ground-water flow system were developed by the U.S. Department of Energy. In general, the two models were based on the same basic hydrogeologic data set. In 1998, the U.S. Department of Energy requested that the U.S. Geological Survey develop and maintain a ground-water flow model of the Death Valley region in support of U.S. Department of Energy programs at the Nevada Test Site. The purpose of developing this ''second-generation'' regional model was to enhance the knowledge and understanding of the ground-water flow system as new information and tools are developed. The U.S. Geological Survey also was encouraged by the U.S. Department of Energy to cooperate to the fullest extent with other Federal, State, and local entities in the region to take advantage of the benefits of their knowledge and expertise. The short-term objective of the Death Valley regional ground-water flow system project was to develop a steady-stat e representation of the predevelopment conditions of the ground-water flow system utilizing the two geologic interpretations used to develop the previous numerical models. The long-term objective of this project was to construct and calibrate a transient model that simulates the ground-water conditions of the study area over the historical record that utilizes a newly interpreted hydrogeologic conceptual model. This report describes the result of the predevelopment steady-state model construction and calibration.
Book Synopsis Analysis of the Northern Dixie Valley Groundwater Flow System Using a Discrete-state Compartment Model by : Gary B. Karst
Download or read book Analysis of the Northern Dixie Valley Groundwater Flow System Using a Discrete-state Compartment Model written by Gary B. Karst and published by . This book was released on 1987 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calibration of a Texture-based Model of a Ground-water Flow System, Western San Joaquin Valley, California by : Steven P. Phillips
Download or read book Calibration of a Texture-based Model of a Ground-water Flow System, Western San Joaquin Valley, California written by Steven P. Phillips and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Guide for Using the Transient Ground-Water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California by : Joan B. Blainey
Download or read book A Guide for Using the Transient Ground-Water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California written by Joan B. Blainey and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is a guide for executing numerical simulations with the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California using the U.S. Geological Survey modular finite-difference ground-water flow model, MODFLOW-2000. Model inputs, including observations of hydraulic head, discharge, and boundary flows, are summarized. Modification of the DVRFS transient ground-water model is discussed for two common uses of the Death Valley regional ground-water flow system model: predictive pumping scenarios that extend beyond the end of the model simulation period (1998), and model simulations with only steady-state conditions.
Book Synopsis A Guide for Using the Transient Ground-water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California by : Joan B. Blainey
Download or read book A Guide for Using the Transient Ground-water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California written by Joan B. Blainey and published by . This book was released on 2006 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Death Valley Regional Groundwater Flow System, Nevada and California by : Wayne R. Belcher
Download or read book Death Valley Regional Groundwater Flow System, Nevada and California written by Wayne R. Belcher and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Guide for Using the Transient Ground-water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California by : Joan B. Blainey
Download or read book A Guide for Using the Transient Ground-water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California written by Joan B. Blainey and published by . This book was released on 2006 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Carbon-14 Calibrated Discrete-state Compartment Model of the Groundwater Flow System, Yucca Mountain and Vicinity, Nevada-California by : Robert Martin Byer
Download or read book A Carbon-14 Calibrated Discrete-state Compartment Model of the Groundwater Flow System, Yucca Mountain and Vicinity, Nevada-California written by Robert Martin Byer and published by . This book was released on 1991 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calibration of groundwater flow models for modeling and teaching by : Mickey Charles McBrayer
Download or read book Calibration of groundwater flow models for modeling and teaching written by Mickey Charles McBrayer and published by . This book was released on 1999 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: