Open-File Report 2006–1104

U.S. GEOLOGICAL SURVEY
Open-File Report 2006–1104

A Guide for Using the Transient Ground-Water Flow Model of the Death Valley Regional Ground-Water Flow System, Nevada and California

Prepared in cooperation with the U.S. Department of Energy Office of Environmental Management, National Nuclear Security Administration, Nevada Site Office, under Interagency Agreement DE-A152-01NV13944 and Office of Repository Development, under Interagency Agreement DE-A108-02RW12167

By Joan B. Blainey, Claudia C. Faunt, and Mary C. Hill

Download the report (PDF, 1.3 MB)

Table of Contents

Conversion Factors, Datums, and Abbreviations and Acronyms

Abstract

Introduction

Overview of Files Required for the DVRFS Model

MODFLOW Processes

Model Output

Typical DVRFS MODFLOW-2000 Modes

Typical Uses of the DVRFS Model

Summary

References Cited

Appendix A: File Archive Documentation

Figures

Figure 1. Geographic and prominent topographic features of the Death Valley regional ground-water flow system, Nevada and California.

Figure 2. Simulated discharge areas, major recharge areas, constant-head boundary flows, and steady-state stress period hydraulic head in the uppermost active model layer of the Death Valley regional ground-water flow system, Nevada and California.

Figure 3. Annual discharge from Bennetts and Manse springs in Pahrump Valley, Nevada, 1875–1998.

Tables

Table 1. MODFLOW-2000 packages and processes used in Death Valley regional ground-water flow system model, Nevada and California.

Table 2. Map coordinates for the ground-water flow model of the Death Valley regional ground-water flow system.

Table 3. Description of the parameter names in the sensitivity file and the associated packages and files.

Table 4. Sensitivity Process and associated factors for Constant-Head Boundary, Drain, Horizontal-Flow Barrier, and Recharge Packages.

Table 5. Select output files produced by MODFLOW-2000 by active processes.

Table 6. Plot symbol codes that identify the observation type in all “underscore” output files created during forward and parameter-sensitivity mode simulations.

Table 7. Modes of MODFLOW-2000 produced by activating different combinations of the Sensitivity and Parameter-Estimation Processes, and commonly used output when the Observation Process is active.

This report is available online in Portable Document Format (PDF). If you do not have the Adobe Acrobat PDF Reader, it is available for free download from Adobe Systems Incorporated.

Download the report (PDF, 1.3 MB)

Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools convert Adobe PDF documents into HTML or ASCII text, which then can be read by a number of common screen-reading programs that synthesize text as audible speech. In addition, an accessible version of Acrobat Reader 7.0 for Windows (English only), which contains support for screen readers, is available. These tools and the accessible reader may be obtained free from Adobe at Adobe Access.

Send questions or comments about this report to the author, J.B. Blainey, (520) 670-6671.

For more information about USGS activities in Nevada, visit the USGS Nevada Water Science Center home page.

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America home page.FirstGov buttonU.S. Department of the Interior | U.S. Geological Survey
Persistent URL: http://pubs.water.usgs.gov/ofr20061104
Page Contact Information: Publications Team
Page Last Modified: Saturday, 12-Jan-2013 21:11:49 EST