UC Irvine listed among America’s top 10 ‘Coolest Schools’ for Sustainability
UC Center for Hydrologic Modeling highlighted for Water for Peace Global Outreach Campaign
UCCHM’s Water for Peace Global Outreach Campaign was noted as an innovative effort, along with several other energy and sustainability-focused UC Irvine programs and initiatives. The campaign was developed to address the critical need for more effective, sustainable water management practices across regional, national and international geo-political lines. Backed by satellite data provided by NASA’s Gravity Recovery and Climate Experiment (GRACE), UCCHM Director Jay Famiglietti and the Center team use this information to pinpoint ‘hotspots of water stress’ on a global scale.
Water diplomacy trips by UCCHM researchers to regions designated as ‘hotspots’ help facilitate data exchanges and scientific collaborations in order to advance the discussion of regional water management issues and solutions.
In February 2013, a delegation of UCCHM representatives and UC Irvine officials traveled to Israel, Palestine and Jordan on a water diplomacy visit, with the goal of using data and scholarly exchange to bring the issues of cooperation and water management to the forefront. Previous trips have included visits to China, Turkey and Tunisia. A water diplomacy trip to East Africa is planned for October 2013.
Communications & Outreach Coordinator
UC Center for Hydrologic Modeling
p: (949) 824-3068
About the UC Center for Hydrologic Modeling:
The UCCHM is a University of California system-wide research center formed to address California, national and international water issues. Its mission is to develop state-of-the-art models, remote sensing analyses, data products and data management to support research and sustainable water management on both local and global levels. UCCHM findings inform state, regional, national and international leaders, and advise decision-makers at all levels, on the future of water availability. For more information, please visit www.ucchm.org
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UCCHM Press Release #2: UC Irvine listed among America’s top 10 ‘Coolest Schools’ for sustainability
Satellite data will be essential to future of groundwater, flood and drought management
UC Irvine, NASA researchers demonstrate need for national water management policy with map of U.S. ‘hotspots’
Irvine, Calif., June 13, 2013 – New satellite imagery reveals that several areas across the United States are all but certain to suffer water-related catastrophes, including extreme flooding, drought and groundwater depletion.
The paper, to be published in Science
this Friday, June 14, underscores the urgent need to address these current and rapidly emerging water issues at the national scale.
“We don’t recognize the dire water situation that we face here in the United States,” said lead author Jay Famiglietti, a professor of Earth System Science at the University of California, Irvine, and Director of the UC Center for Hydrologic Modeling (UCCHM). Since its launch in 2002, Famiglietti and co-author Matt Rodell, Chief of the Hydrological Sciences Laboratory at NASA’s Goddard Space Flight Center, have been using data from the NASA Gravity Recovery and Climate Experiment (GRACE) satellite mission to track changing freshwater availability all over the world.
“Worldwide, groundwater supplies about half of all drinking water, and it is also hugely important for agriculture, yet without GRACE we would have no routine, global measurements of changes in groundwater availability,” said Rodell. “Other satellites can’t do it, and ground-based monitoring is inadequate.”
The report, entitled Water in the Balance, draws attention to water management as a national, rather than just a regional or statewide problem. The GRACE mission is able to monitor monthly water storage changes within river basins and aquifers that are 200,000 km2 or larger in area, and, according to Famiglietti and Rodell, can contribute to water management at regional and national scales, and to international policy discussions as well.
Using GRACE data, the researchers were able to identify several water ‘hotspots’ in the United States, including its key food producing regions in 1) California’s Central Valley, and 2) the southern High Plains aquifer; a broad swath of the southeastern U. S. that has been plagued by persistent drought, including 3) Houston, Texas, 4) Alabama, and 5) the Mid-Atlantic region; and 6) the flood-prone upper Missouri River basin. They also noted that since 2003, the wetter, northern half of the U.S. has become wetter, while the drier, southern half has become drier.
According to Famiglietti and Rodell, without coordinated and proactive management, the aquifers supplying the Central Valley and the southern High Plains with water for irrigation will deplete their groundwater reserves, perhaps within decades, putting the nation’s food supply at considerable risk. Meanwhile, if sufficient measures are not taken, the upper Missouri River basin will experience extensive flood damage. The authors state that using GRACE, groundwater supplies can now be better managed, while the lead-time for flood and drought predictions could be substantially increased, potentially saving hundreds of millions of dollars and countless lives in the process.
“GRACE data provide new insights into regions in the U.S. and around the world where water issues have already approached the crisis stage. Their potential for game-changing contributions to regional water management is just beginning to be realized,” says Famiglietti, who believes that maps like his and Rodell’s make a strong case for immediate action, and ultimately, for a comprehensive, national water policy in the United States.
The authors argue for greater investment to speed current GRACE data processing to ensure its availability for seasonal flood and drought forecasting, and for future gravity missions that can help water management even more than at present.
“A future mission that could monitor water storage changes every week or two, rather than on a monthly basis, and for river basins and aquifers that are tens of thousands of square kilometers, rather than hundreds, would be ideal,” notes Rodell.
According to USA Today, in 2012 flood damage from Hurricane Sandy and the Midwest/Great Plains drought cost the U.S. $100 billion. The U. S. Geological Survey recently reported that since the beginning of the 20th century, enough groundwater has been depleted in the United States to fill Lake Erie twice.
Groundwater storage trends around the United States as measured by the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (GRACE) satellites between 2003 and 2012. GRACE data show water losses in major U.S. agricultural regions such as (1) California’s Central Valley (-1.5 ± 0.1 centimeters, or -0.59 ± 0.04 inches, per year) and (2) the Southern High Plains Aquifer (-2.5 ± 0.2 centimeters, or -0.98 ± 0.08 inches, per year), caused by overreliance on groundwater to supply irrigation water. Regions where groundwater is being depleted as a result of prolonged drought include (3) Houston (-2.3 ± 0.6 centimeters, or -0.9 inches, per year), (4) Alabama (-2.1 ± 0.8 centimeters, or -0.83 inches, per year) and (5) the Mid-Atlantic (-1.8 ± 0.6 centimeters, or -0.71 inches, per year). Water storage is increasing in (6), the flood-prone Upper Missouri River basin (2.5 ± 0.2 centimeters, or 0.98 inches, per year).
The graphs surrounding the main image are monthly time series of GRACE-derived anomalies of total water storage (in centimeter-equivalent water height) for the points annotated (1) – (6). Monthly data are displayed as darker blue lines. Trend lines (in centimeters per year), in red, have been added to each time series plot. Monthly errors are shown as light blue shading..
Data from University of Texas CSR Release-05 and prepared by Caroline de Linage, UC Irvine.
Communications & Outreach Coordinator
UC Center for Hydrologic Modeling
p: (949) 824-3068
Special Note to Reporters:
A copy of the paper and supplementary online figure can be found at the Science press package at http://www.eurekalert.org/jrnls/sci
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About the UC Center for Hydrologic Modeling
The UCCHM is a University of California system-wide research center formed to address California’s water issues. Its mission is to develop state-of-the-art models, remote sensing analyses, data products and data management to support research and sustainable water management for California and the west. UCCHM findings inform state, regional, national and international leaders, and advise decision-makers at all levels, on the future of water availability. For more information, please visit www.ucchm.org
UCCHM Press Release #1: Satellite data will be essential to future of groundwater, flood and drought management.