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California Drought: Hydrological and Regulatory Water Supply Issues

Description: This report discusses California's current hydrological situation and provides background on regulatory restrictions affecting California water deliveries, as well as on the long-established state water rights system, which also results in uneven water deliveries in times of shortages.
Date: December 7, 2009
Creator: Cody, Betsy A.; Folger, Peter & Brougher, Cynthia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Techniques to Access Databases and Integrate Data for Hydrologic Modeling

Description: This document addresses techniques to access and integrate data for defining site-specific conditions and behaviors associated with ground-water and surface-water radionuclide transport applicable to U.S. Nuclear Regulatory Commission reviews. Environmental models typically require input data from multiple internal and external sources that may include, but are not limited to, stream and rainfall gage data, meteorological data, hydrogeological data, habitat data, and biological data. These data… more
Date: June 17, 2009
Creator: Whelan, Gene; Tenney, Nathan D.; Pelton, Mitchell A.; Coleman, Andre M.; Ward, Duane L.; Droppo, James G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrological consequences of global warming

Description: The 2007 Intergovernmental Panel for Climate Change indicates there is strong evidence that the atmospheric concentration of carbon dioxide far exceeds the natural range over the last 650,000 years, and this recent warming of the climate system is unequivocal, resulting in more frequent extreme precipitation events, earlier snowmelt runoff, increased winter flood likelihoods, increased and widespread melting of snow and ice, longer and more widespread droughts, and rising sea level. The effects… more
Date: June 1, 2009
Creator: Miller, Norman L.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Drought resilience of the California Central Valley surface-groundwater-conveyance system

Description: A series of drought simulations were performed for the California Central Valley using computer applications developed by the California Department of Water Resources and historical datasets representing a range of droughts from mild to severe for time periods lasting up to 60 years. Land use, agricultural cropping patterns, and water demand were held fixed at the 2003 level and water supply was decreased by amounts ranging between 25 and 50%, representing light to severe drought types. Impacts… more
Date: May 15, 2009
Creator: Miller, N. L.; Dale, L. L.; Brush, C.; Vicuna, S.; Kadir, T. N.; Dogrul, E. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Water: May be the Best Near-Term Benefit and Driver of a Robust Wind Energy Future (Poster)

Description: Water may be the most critical natural resource variable that affects the selection of generation options in the next decade. Extended drought in the western United States and more recently in the Southeast has moved water management and policy to the forefront of the energy options discussions. Recent climate change studies indicate that rising ambient temperatures could increase evapotranspiration by more than 25% to 30% in large regions of the country. Increasing demand for electricity, and … more
Date: May 1, 2009
Creator: Flowers, L. & Reategui, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Impact of drought on U.S. steam electric power plant cooling water intakes and related water resource management issues.

Description: This report was funded by the U.S. Department of Energy's (DOE's) National Energy Technology Laboratory (NETL) Existing Plants Research Program, which has an energy-water research effort that focuses on water use at power plants. This study complements their overall research effort by evaluating water availability at power plants under drought conditions. While there are a number of competing demands on water uses, particularly during drought conditions, this report focuses solely on impacts to… more
Date: April 3, 2009
Creator: Kimmell, T. A.; Veil, J. A. & Division, Environmental Science
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Drought in the United States: Causes and Issues for Congress

Description: This report discusses how drought is defined (e.g., why drought in one region of the country is different from drought in a different region), and why drought occurs in the United States. The report briefly describes periods of drought in the country's past that equaled or exceeded drought conditions experienced during the 20th century, including periods during earlier centuries where the American West was substantially drier, on average, than it is today.
Date: March 2, 2009
Creator: Folger, Peter; Cody, Betsy A. & Carter, Nicole T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Drought in the United States: Causes and Issues for Congress

Description: This report discusses how drought is defined, and why drought occurs in the United States. How droughts are classified, and what is meant by moderate, severe, and extreme drought classification, are also discussed. The report concludes with a description of policy challenges for Congress, such as the existing federal/non-federal split in drought response and management, and the patchwork of drought programs subject to oversight by multiple congressional committees.
Date: March 2, 2009
Creator: Folger, Peter; Cody, Betsy A. & Carter, Nicole T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy and water sector policy strategies for drought mitigation.

Description: Tensions between the energy and water sectors occur when demand for electric power is high and water supply levels are low. There are several regions of the country, such as the western and southwestern states, where the confluence of energy and water is always strained due to population growth. However, for much of the country, this tension occurs at particular times of year (e.g., summer) or when a region is suffering from drought conditions. This report discusses prior work on the interdepen… more
Date: March 1, 2009
Creator: Kelic, Andjelka; Vugrin, Eric D.; Loose, Verne W. & Vargas, Vanessa N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A dynamic soil chamber system coupled with a tunable diode laser for online measurements of delta-13C, delta-18O, and efflux rate of soil respired CO2

Description: High frequency observations of the stable isotopic composition of CO(2) effluxes from soil have been sparse due in part to measurement challenges. We have developed an open-system method that utilizes a flow-through chamber coupled to a tunable diode laser (TDL) to quantify the rate of soil CO(2) efflux and its delta(13)C and delta(18)O values (delta(13)C(R) and delta(18)O(R), respectively). We tested the method first in the laboratory using an artificial soil test column and then in a semi-ari… more
Date: January 1, 2009
Creator: Powers, Heath H; Mcdowell, Nate; Hanson, David & Hunt, John
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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