Filtering by: Affiliation United States. National Park Service Remove constraint Affiliation: United States. National Park Service Creator Arulraj, Malarvizhi Remove constraint Creator: Arulraj, Malarvizhi Creator Miller, Douglas Remove constraint Creator: Miller, Douglas 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