Groundwater Recharge in a Desert Environment

James F. Hogan and Fred M. Phillips are the authors of Groundwater Recharge in a Desert Environment: The Southwestern United States, published by Wiley.

Preface
James F. Hogan, Fred M. Phillips, and Bridget R. Scanlon  vii

Section I: Introduction and Overview

Introduction and Overview
Fred M. Phillips, James E Hogan, and Bridget R. Scanlon  1

Section II: Recharge Mechanisms and Processes

Hydrologic Processesin Deep Vadose Zones in Interdrainage Arid Environments
Michelle A. Walvoord and Bridget R. Scanlon  15

Tectonic, Climatic, and Land-Use Controls on Groundwater Recharge in an Arid Alluvial Basin:
Amargosa Desert, U.S.A.
David A. Stonestrom, David E. Prudic, Randell J. Laczniak, and Katherine C. Akstin  29

Millimeter- to Kilometer-ScaleV ariationsi n Vadose-ZoneB edrockS olutes: Implicationsf or Estimating
Recharge in Arid Settings
Victor M. Hellwell and D. Kip Solomon  49

ProcessesC ontrolling Recharge Beneath Ephemeral Streamsi n Southern Arizona
Kyle Blasch, Ty P. A. Ferre, John Hoffman, Donald Pool, Matthew Bailey, and Jeffrey Cordova  69

Comparison of Methods to Estimate Ephemeral Channel Recharge, Walnut Gulch, San Pedro River
Basin, Arizona
David C. Goodrich, David G Williams, Carl L. Unkrich, James E. Hogan, Russell L. Scott, Kevin R. Hultine, Don Pool, Alissa L. Coes, and Scott Miller  77

Modeling Variably Saturated Flow Using Kinematic Waves in MODFLOW
Richard G. Niswonger and David E. Prudic  101

Mountain-Block Hydrology and Mountain Front Recharge
John L. Wilson and Huade Guan  113

Constraining Mountain-Block Recharge to the Eastern Salt Lake Valley, Utah With Dissolved Noble Gas
and Tritium Data
Andrew H. Manning and D. Kip Solomon  139

Section III: Case-Studies at the Basin Scale

Fundamental Concepts of Recharge in the Desert Southwest: A Regional Modeling Perspective
Alan L. Flint, Lorraine E. Flint, Joseph A. Hevesi, and Joan B . Blainey 159

Using Geochemical Data and Aquifer Simulation to Characterize Recharge and Groundwater Flow in
the Middle Rio Grande Basin, New Mexico
L. Neil Plummer, Ward E. Sanford, Laura Bexfield, Scot K. Anderholm, and Eurybiades Busenberg 185

The Origins, Ages and Flow Paths of Groundwater in Tuscon Basin: Results of a Study of Multiple
Isotope Systems
Christophe J. Eastoe, Ailiang Gu, and Austin Long  217

Section IV: Synthesis

Evaluation of Methods of Estimating Recharge in Semiarid and Arid Regions in the Southwestern U.S.
Bridget R. Scanlon  235

Semi-Discrete Dynamical Model for Mountain-Front Recharge and Water Balance Estimation,
Rio Grande of Southern Colorado and New Mexico
Christopher J. Duffy  255

Effects of Environmental Change on Groundwater Recharge in the Desert Southwest
Fred M. Phillips, Michele A. Walvoord, Eric E. Small  273