ABSTRACT
Jason J. Gurdak is an assistant professor of hydrogeology in the department of Earth and climate sciences at San Francisco State University, San Francisco, California, United States, where he leads the Hydrogeology and Water Resources Research Group. Prior to SFSU, he was a hydrologist for 11 years with the US Geological Survey (USGS) National Water-Quality Assessment Program. Dr. Gurdak has authored more than 30 peer-reviewed papers, books, and chapters on groundwater quality, vadose zone and soil-water processes, recharge and contaminant transport, groundwater vulnerability to contamination, including nonpoint source nitrate, and climate variability and change e¥ects on water resources. He also helps lead two international programs in UNESCO and INQUA on global groundwater, climate change, and paleoclimate signals that advances science, education, and awareness of the e¥ects of climate change on global groundwater resources.
