Climate Projections

Native Waters team member Dr. Michael Dettinger has prepared climate projections for temperature and precipitation for ten Indian reservations in the Great Basin and Southwestern US: the Colorado River, Duck Valley, Duckwater, Gila River, Hopi, Navajo Nation, Pyramid Lake Paiute, Uintah and Ouray, Walker Lake, and Zuni reservations.

The projections, which are constructed using 15 climate models and two emissions scenarios, extend through the year 2100 and show increases in temperature at all ten reservations, changes in precipitation that vary by location (wetter in northern locations/drier in southern locations), and increases in precipitation extremes (floods and droughts). Follow the links below to view the projections as PDFs or to download raw data.

Climate projections: View PDFs

To access raw data files for these climate projections, download the tar file of ascii raw data. The annual data for the Duckwater Shoshone Reservation is in a separate file, available here.

Daily Data

We also have projected daily values for maximum and minimum temperatures and precipitation totals for each reservation listed above. The files below contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files:

For more information on these files, see the readme document.