Physical Sciences and Mathematics Commons^™

Publications And Other Works By R. F. Diffendal, Jr., Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

Articles
Chapters in Books
Books
Field Guides
Geologic Maps
Other Maps
Cover Photographs
Other Photographs
Newspaper and Other Articles
Test-Hole Logs
Television Programs
Geonotes
Abstracts
Reviews
Manuscripts Accepted (A), Submitted (S), or in Preparation (P)
Geologic Maps in Press
Geologic Maps-Nebraska
Public Documents
Miscellaneous Publications
Editing

Updated March 2024

Effects Of Climate And Irrigation On Grace-Based Estimates Of Water Storage Changes In Major Us Aquifers, B. R. Scanlon, A. Rateb, D. R. Pool, W. Sanford, H. Save, A. Sun, D. Long, B. A. Fuchs

School of Natural Resources: Faculty Publications

No abstract provided.

Assessment Of Potential Impacts To Surface And Subsurface Water Bodies Due To Longwall Mining, Christopher R. Newman, Zacharias Agioutantis, Gabriel Boede Jimenez Leon

Mining Engineering Faculty Publications

Ground movements due to longwall mining operations have the potential to damage the hydrological balance within as well as outside the mine permit area in the form of increased surface ponding and changes to hydrogeological properties. Recently, the Office of Surface Mining, Reclamation and Enforcement (OSMRE) in the USA, has completed a public comment period on a newly proposed rule for the protection of streams and groundwater from adverse impacts of surface and underground mining operations (80 FR 44435). With increased community and regulatory focus on mining operations and their potential to adversely affect streams and groundwater, now there is …

Semianalytical Solutions For Transport In Aquifer And Fractured Clay Matrix System, Junqi Huang, Mark N. Goltz

Faculty Publications

A three‐dimensional mathematical model that describes transport of contaminant in a horizontal aquifer with simultaneous diffusion into a fractured clay formation is proposed. A group of semianalytical solutions is derived based on specific initial and boundary conditions as well as various source functions. The analytical model solutions are evaluated by numerical Laplace inverse transformation and analytical Fourier inverse transformation. The model solutions can be used to study the fate and transport in a three‐dimensional spatial domain in which a nonaqueous phase liquid exists as a pool atop a fractured low‐permeability clay layer. The nonaqueous phase liquid gradually dissolves into the …

Tackling Change: Future-Proofing Water, Agriculture, And Food Security In An Era Of Climate Uncertainty, Peter G. Mccornick, Vladimir Smakhtin, Luna Bharati, Robyn Johnston, Matthew Mccartney, Fraser Sugden, Floriane Clement, Beverly Mcintyre

Daugherty Water for Food Global Institute: Faculty Publications

In 1950 the global population was just over 2.5 billion. Now, in 2013, it is around 7 billion. Although population growth is slowing, the world is projected to have around 9.6 billion inhabitants by 2050. Most of the population increase will be in developing countries where food is often scarce, and land and water are under pressure. To feed the global population in 2050 the world will have to produce more food without significantly expanding the area of cultivated land and, because of competition between a greater number of water users, with less freshwater. On top of land and water …

Slides: Colorado Law: Protecting Water Quantity And Quality, Alan E. Curtis

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Alan E. Curtis, White & Jankowski, LLP

23 slides

Weaber Plain Aquifer Test Results, Robert Paul, Paul Raper, John Andrew Simons, Grant Stainer, Richard J. George

Resource management technical reports

As a part of the environmental planning and approvals process, the state government was required to prepare Groundwater Management and Hydrodynamic Plans. These plans are to address potential issues of salinity and water quality that could result from the development of irrigated agriculture on the Weaber Plain. The Weaber Plain groundwater modelling report (KBR 2010a) identified several options to manage watertables and salinity

Production bores 10WP35PB and 10WP36PB were drilled in the palaeochannel on sites selected from the interpretation of airborne geophysics.

Slides: Water And Development Of Unconventional Oil And Gas Resources, Judy Jordan

Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)

Presenter: Judy Jordan, Oil & Gas Liaison, Garfield County, Rifle, CO

21 slides

Colorado River Water: Mexico's Perspective On The Ongoing Negotiations, Mario López Pérez

US-Mexico Negotiations on Improved Colorado River Management: An Update (February 19)

Presenter: Mario López, Engineering and Technical Standards Manager, National Water Commission of México

53 slides

Slides: Next Evolutionary Steps In State Instream Flow Programs, Lawrence J. Macdonnell

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Lawrence J. MacDonnell, attorney and consultant, Boulder, CO

27 slides

Slides: The Urbanizing West: Limits To Water, Limits To Growth, Lora A. Lucero

Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)

Presenter: Lora A. Lucero, AICP, American Planning Association

18 slides

A Decade Of Colorado Supreme Court Water Decisions, 1996-2006: Special Report, Colorado Foundation For Water Education

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

Presenter: Justice Greg Hobbs, Colorado Supreme Court

31 pages.

Includes color illustrations and map

"Acknowledgments: This special report highlights important features of Colorado Supreme Court water decisions handed down between 1996 and 2006. It contains excerpts from opinions authored by Justices Lohr, Vollack, Mullarkey, Kourlis, Hobbs, Martinez, Bender, Rice, Coats and Eid. It is adapted from an article that first appeared in The Water Report (www.thewaterreport.com), February 15, 2007, used with permission."

Impact Of More Intensive Grazing On Nitrogen And Phosphorus In Shallow Aquifers Of The Southern Perth Basin, D L. Bennett, Patrick Donnelly, Peter J. Tille

Resource management technical reports

This study reports on the nutrient content, pH and salinity of groundwater samples collected from the watertable and within the Superficial and the upper Leederville Aquifers from the Southern Perth Basin, south of Pinjarra, Western Australia. Sampling was undertaken to determine the impact of intensification of broadscale grazing on groundwater nutrients in the area.

The Earth, Energy, And Agriculture, Tad W. Patzek

Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)

Presenter: Tad W. Patzek, Professor of Petroleum Engineering, University of California at Berkeley, Berkeley, CA.

13 pages (includes some color illustrations).

Contains references.

Slides: Groundwater-Surface Water Interactions, Thomas Maddock, Iii

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Thomas Maddock III, Department of Hydrology, University of Arizona.

16 slides.

Slides: Overview Of Groundwater Management Laws In The Western United States, Gary Bryner

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Gary Bryner, Natural Resources Law Center and Brigham Young University (see also Groundwater Law Sourcebook of the Western United States).

37 slides.

Climate Change And The Rio Grande: Throwing Gasoline On A Fire, Denise Fort

Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13)

4 pages.

"Summary"

"Professor Denise Fort, University of New Mexico School of Law"

Case Study—The West Bank, Julie Trottier

Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14)

14 pages.

Contains footnotes.

Deschutes Water Exchange [Abstract], Gail Achterman

Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14)

2 pages.

The Legal Response To The World’S Water Crisis: What Legacy From The Hague? What Future In Kyoto?, Patricia Wouters, Salman M. A. Salman, Patricia Jones

Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14)

23 pages.

Includes footnotes.

The Hydrology Of Coalbed Methane Reservoirs And The Interplay Of Gas, Water, And Coal In Cbm Production, Leslie Nogaret

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes color illustrations and map).

Scientific And Social Landscapes: New Frameworks And Forums For Water Management And Sustainability, Christine Turner, Herman Karl

Two Decades of Water Law and Policy Reform: A Retrospective and Agenda for the Future (Summer Conference, June 13-15)

11 pages.

Contains 2 pages of references.

Chloroform Contamination In The Louisville Aquifer: An Investigation Of Its Occurrence And Propagation, Sergio E. Serrano

KWRRI Research Reports

This report presents the main results of an investigation on the nature and propagation of an accidental spill of chloroform in the Louisville aquifer, Kentucky. Much of the effort is concentrated on the development of mathematical models to either reconstruct the history of evolution of the plume, or forecast its propagation in the future. Chloroform is a dense halogenated solvent which exhibits a special migration pattern in porous media: Because of this and the relative absence of a conceptual theory on its hydrodynamics in porous media, meaningful predictive models will have to deal with many unresolved theoretical aspects of contaminant …

G93-1128 Understanding Groundwater, William L. Kranz, Delynn Hay, James W. Goeke

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides information on how groundwater exists, where it exists, and how it moves. Key definitions are highlighted. Water is the life blood of every living creature on earth. Approximately 70 percent of the earth's surface is covered with water. Through the wonders of nature, water can take on many different forms, from the water we drink, to the ice we use to chill a glass of lemonade, to the water vapor used to steam clean equipment. It is easy to understand the significance water plays in our lives, but it may be much more difficult to understand the …

G93-1128 Understanding Groundwater, William L. Kranz, Delynn R. Hay, James W. Goeke

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides information on how groundwater exists, where it exists, and how it moves. Key definitions are highlighted. Water is the life blood of every living creature on earth. Approximately 70 percent of the earth's surface is covered with water. Through the wonders of nature, water can take on many different forms, from the water we drink, to the ice we use to chill a glass of lemonade, to the water vapor used to steam clean equipment. It is easy to understand the significance water plays in our lives, but it may be much more difficult to understand the …

Exporting Ground Water From Colorado’S San Luis Valley: Awdi’S Nontributary Claim, Eric J. Harmon

Uncovering the Hidden Resource: Groundwater Law, Hydrology, and Policy in the 1990s (Summer Conference, June 15-17)

12 pages.

Contains 1 page of references.

Regulation Of Ground Water In Salt Lake Valley, Robert L. Morgan

Innovation in Western Water Law and Management (Summer Conference, June 5-7)

24 pages (includes illustrations and maps).

Contains references.

Coordinated Water Management Under The Prior Appropriation Doctrine In New Mexico: The Rio Grande Case – The Pecos River Case, Eluid L. Martinez

Innovation in Western Water Law and Management (Summer Conference, June 5-7)

26 pages.

Preparation And Implementation Of The State Water Plan In Kansas, Stephen A. Hurst

Innovation in Western Water Law and Management (Summer Conference, June 5-7)

12 pages (includes illustrations and maps).

Contains footnotes.

Modeling Mass Transport In Aquifers: The Distributed Source Problem, Sergio E. Serrano

KWRRI Research Reports

This report presents a new methodology to model the time and space evolution of groundwater variables in a system of aquifers when certain components of the model, such as the geohydrologic information, the boundary conditions, the magnitude and variability of the sources or physical parameters are uncertain and defined in stochastic terms. This facilitates a more realistic statistical representation of groundwater flow and groundwater pollution forecasting for either the saturated or the unsaturated zone. The method is based on applications of modern mathematics to the solution of the resulting stochastic transport equations. This procedure exhibits considerable advantages over the existing …