Filtering by: Affiliation United States. National Park Service Remove constraint Affiliation: United States. National Park Service Affiliation George C. Marshall Space Flight Center Remove constraint Affiliation: George C. Marshall Space Flight Center Affiliation Civil and Environmental Engineering Remove constraint Affiliation: Civil and Environmental Engineering Creator Petersen, Walter A. Remove constraint Creator: Petersen, Walter A. Publication Year 2017 Remove constraint Publication Year: 2017 Subject Rain gauges Remove constraint Subject: Rain gauges