"This report uses the most current information and state of the art scientific methodology to project a range of future supply scenarios in the upper Rio Grande basin," Castle said. "It is a great first step and a call to action for water managers and users in the basin and the partner federal agencies to move forward and develop adaptation to the challenges this study brings to light."
The study was conducted by the Bureau of Reclamation in partnership with Sandia National Laboratories and the U.S. Army Corps of Engineers. It includes a detailed evaluation of the climate, hydrology and water operations of the upper Rio Grande basin of Colorado and New Mexico. Also included is an evaluation of the potential impacts associated with climate change on streamflow, water demand and water operations in the basin.
Temperatures will increase four to six degrees Fahrenheit by the end of the 21st century, according to the climate modeling used in the study. Although the modeling projects that total annual average precipitation in the basin will not change considerably, we are likely to see a decreasing snowpack, an earlier and smaller spring snowmelt runoff and an increase in the frequency, intensity and duration of both droughts and floods.
The models used for the study consistently project an overall decrease in water availability in the basin. Rio Grande supplies are projected to decrease by an average of one-third from current supplies. The water supply from the San Juan-Chama Project, which is imported to the Rio Grande, is projected to decrease by an average of one-quarter.
All of these impacts would contribute to a larger gap between water supply and demand and lead to future water management challenges for the Bureau of Reclamation and other water managers within the upper Rio Grande basin.
The URGIA is the first impact assessment to be completed by Reclamation as part of the Westwide Climate Risk Assessments through the Department of the Interior's WaterSMART Program. Impact assessments are reconnaissance-level investigations of the potential hydrologic impacts of climate change in the major river basins of the Western United States. Through WaterSMART, Reclamation is also able to conduct a more in-depth basin study in conjunction with state and local partners that would develop options and strategies to address supply and demand imbalances.
The WaterSMART Program focuses on improving water conservation, sustainability and helping water resource managers make sound decisions about water use. It identifies strategies to ensure that this and future generations will have sufficient supplies of clean water for drinking, economic activities, recreation and ecosystem health. The program also identifies adaptive measures to address climate change and its impact on future water supply and demand.
To read the report or learn more about WaterSMART please visit www.usbr.gov/watersmart/.
Reclamation is the largest wholesale water supplier and the second largest producer of hydroelectric power in the United States, with operations and facilities in the 17 Western States. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits.
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Steep rise of the Bernese Alps
24.03.2017 | Universität Bern
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
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Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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