Ali Behrangi PI on a New 2.5 Million NASA Grant to Advance Precipitation Data Record in High Latitudes

Photo Ali Behrangi
Wednesday, April 25, 2018

Congratulations to Ali Behrangi, Associate Professor of Hydrology and Atmospheric Sciences, recently named as the Principal Investigator for a new $2.5 million NASA grant to advance the Global Precipitation Climatology Project (GPCP) over high latitude regions. With the 5-year grant, Behrangi will lead an international team of experts from NASA Goddard Space Flight Center (GSFC), the University of Maryland, the NASA Jet Propulsion Laboratory, Utrecht University (the Netherlands), Environment Canada, and the University of Hamburg (Germany).

GPCP is a global observational precipitation product that has become a science community standard, having been used in over 4000 journal articles. The current monthly (1979-present) and daily (1996-present) products have been developed by research groups over the last 20 years. The GPCP is the precipitation component of an internationally coordinated set of mainly satellite-based global products dealing with the Earth’s water and energy cycles, under the auspices of the Global Energy and Water Exchanges (GEWEX) project of the World Climate Research Programme (WCRP).

The project will utilize the strengths offered by recent space-borne sensors and retrieval methods to generate the next generation GPCP merged precipitation products in high latitudes poleward of 40o latitude and integrate it to the latest GPCP product. Revising GPCP data products over such climate-sensitive and hydrologically important regions has remained a major gap. The project will identify, quantify, diagnose, and reduce uncertainties in the GPCP data products in high latitudes and generate an improved long-term GPCP data record calibrated to the recent observations from NASA’s missions and in-situ observations from international groups. Connecting these new, short-term measurements to the long-term GPCP analysis will amplify the impact of NASA and other agencies new missions to advance our climate data record.

Behrangi joined the University of Arizona in January 2018 after working for more than 8 years at NASA JPL. He is currently principal investigator on four other projects, Lead member of the WCRP weather and climate extreme grand challenge, and member of the WMO/WCRP joint Expert Team on Climate Change Detection and Indices (ETCCDI). He is a fellow of the Kavli Frontiers of Science, National Academy of Sciences and received the NASA JPL Early Career Achievement Medal in 2016.