Technical Lead: Kelly Mahoney (NOAA, formerly CIRES) • April 2017

This study explores how to optimally use high-resolution dynamical weather models to simulate heavy precipitation for a specific region in the most robust and representative manner. The results provide superior datasets and improved understanding of heavy precipitation events and processes as they relate to Reclamation sites of interest in the western US, as well as assessments of climate change impacts on storms.

Technical Lead: Kelly Mahoney (NOAA, formerly CIRES) • April 2017

It is important to both scientists and water managers to better understand the synoptic (weather-related) and climatic processes that influence heavy precipitation events in the US intermountain west in addition to the windward side of the Sierra and Cascade Mountains. This research has the potential to better inform decisions about dam safety and flood hydrology, for example by helping to guide storm transposition for estimating maximum precipitation. In addition, there is the potential to improve longer-term outlooks through a better understanding of how these extreme events are related to climate variability and change.

Technical Lead: James Scott (CIRES) • April 2017

The research undertaken as a part of this project provides an evaluation of the utility of CMIP5 model projections for water resource and environmental planning applications, and the components of a framework to support the application of CMIP5 data in planning and assessment.

Technical Lead: Ben Livneh (CIRES) • April 2017

This effort provides additional daily downscaled data to a national repository of CMIP5 information that reconciles regional biases in precipitation variability.

Technical Lead: David Reynolds (CIRES) • April 2017

From the 1960s through the 1980s the Bureau of Reclamation was involved in a variety of weather modification initiatives in the west including Project Skywater which included the Colorado River Basin Pilot Project, the High Plains Experiment, and the Sierra Cooperative Pilot Project to name a few.

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