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Full-Text Articles in Geography
Active Rock Glaciers Of The Contiguous United States: Geographic Information System Inventory And Spatial Distribution Patterns, Gunnar Johnson, Heejun Chang, Andrew G. Fountain
Active Rock Glaciers Of The Contiguous United States: Geographic Information System Inventory And Spatial Distribution Patterns, Gunnar Johnson, Heejun Chang, Andrew G. Fountain
Geography Faculty Publications and Presentations
In this study we present the Portland State University Active Rock Glacier Inventory (n=10 332) for the contiguous United States, derived from the manual classification of remote sensing imagery (Johnson, 2020; https://doi.org/10.1594/PANGAEA.918585). Individually, these active rock glaciers are found across widely disparate montane environments, but their overall distribution unambiguously favors relatively high, arid mountain ranges with sparse vegetation. While at least one active rock glacier is identified in each of the 11 westernmost states, nearly 88 % are found in just five states: Colorado (n=3889), Montana (n=1813), Idaho (n=1689), Wyoming ( …