The University of Arizona

Hopi Drought Indicators and Monitoring | CCASS


A new website focused on Scenario Planning for Climate Adaptation,, has been developed by CCASS and the DOI Southwest Climate Science Center. 

About Us

CCASS/NNCAP welcomes Valerie Small!

Dr. Valerie Small (Apsaalooke'-Crow) has joined the Native Nations Climate Adaptation Program as an Assistant Research Scientist. Dr. Small will be working with Tribes in the Southwest Region in collaboration with CCASS and NNCAP within the Institute of the Environment as well as the Southwest Climate Science Center (SW CSC). She will develop and deliver educational training modules to increase their environmental technical capacity in preparing for, as well as predicting near-term/future effects of climate change.

Prior to joining the UA, Valerie was a training consultant with Colorado State University, Natural Resource Ecology Lab (NREL), working with the North Central Climate Science Center. Her experience includes developing and conducting training and research to support North American Indigenous Tribes adaptation planning efforts to prepare for the effects of a warming climate.  

Hopi Drought Indicators and Monitoring

Photo Credit: 
Michael Crimmins
Rick Nasafotie (Hopi Office of Range Management) and Daniel Ferguson (UA) discuss range conditions in summer 2013 on the Hopi Tribe’s lands in northern Arizona.
Lead CCASS Contact: 

The goal of this project is to work with the Hopi Tribe's Department of Natural Resources (HDNR) to develop a set of drought indicators and approaches for collecting, analyzing, and utilizing the data needed to support each indicator. In addition to indicators that rely on available temperature and precipitation data, we hope to develop a complementary suite of indicators that utilizes drought impacts information the HDNR has begun to collect. The integrated suite of indicators and processes to support monitoring them will: 1) provide the foundation for revisions to the Hopi Tribe's current drought management and response plan, 2) result in a new stream of locally-derived data and information that could provide input to national drought products like the US Drought Monitor, and 3) be the backbone of a system that would provide local, regional, and national decision makers better insight into developing drought conditions before an event reaches critical levels.

The first issue of an experimental Quarterly Hopi Drought Summary report was released in early April 2014. This product synthesizes various data sources that reflect ongoing drought status on Hopi lands. The drought summary is designed to: a) provide the HDNR with a status update on drought conditions, and b) demonstrate to HDNR technicians how the data they collect may be utilized.

Status and primary funding:

Hopi Department of Natural Resources

More info: