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Dan Cayan

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The desert grasslands of the southwestern United States support many wildlife species of management concern and economic value. The American pronghorn, for example, is a game species that contributes to local and state economies. Climate extremes, including severe droughts, heat waves, and atmospheric river events, are expected to occur more frequently in the Southwest. These extremes can affect the availability of food and water needed by wildlife. Wildlife management agencies and conservation organizations need information on resource availability for wildlife under future climate scenarios to design effective management strategies to sustain wildlife populations. Project scientists are working with the Arizona...
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The complex mountain and valley chains of the Southwest exert a strong influence on precipitation and wind patterns. Atmospheric rivers deliver some of the most extreme precipitation events to west-southwest-facing slopes of the mountains where strong gusty downslope winds can also spread wildfires. Climate change is making the southwest warmer and dryer resulting in more fire-prone vegetation and more frequent and extreme atmospheric rivers. Understanding this changing system is critical for managing water resources and wildfire in the region. This project will study how climate change is impacting precipitation and winds to create fire weather and drive fire spread on heavily vegetated slopes of coastal mountains....
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The Southwest Climate Adaptation Science Center supports conservation and management of the Southwest’s natural resources and cultural heritage by building partnerships between scientists and decision-makers, fostering development of research products to inform decisions, and assisting American Indian communities in adapting to climate change in the southwestern United States. Our vision it to help to maintain and sustain the Southwest’s unique biodiversity, its ecosystems’ diverse contributions to human welfare, and its diverse cultures, [both indigenous and adventitious,] as the region’s climate undergoes change in the coming years and decades. The SW CASC is hosted by the University of Arizona. Other consortium...
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