TY - RPRT TI - Recent and projected precipitation and temperature changes in the Grand Canyon area with implications for groundwater resources AU - Fred D. Tillman AU - Subhrendu Gangopadhyay AU - Tom Pruitt PY - 2020 DO - 10.1038/s41598-020-76743-6 UR - https://pubs.usgs.gov/publication/70216782 ID - 70216782 ER -