1998_Glacier margins derived from 1998 aerial imagery for the named glaciers of Glacier National Park, MT and environs

These polygon features represent digitization of the glacier margins for the 37 named glaciers of Glacier National Park (GNP) and the 2 glaciers along the border of GNP derived from aerial images acquired on September 11, 12, 14, 15, 1998. The polygons represent only the main body portion of the glacier as they appeared in the 1998 imagery. Disconnected patches are not included as this dataset represents only the main body features. Polygons were digitized from orthorectified aerial images with initial digitization completed in 2001 by Michelle Manly, University of North Dakota graduate student. This set of polygons represents a thorough review with revisions to the initial dataset based on local knowledge and improved...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 1998 aerial imagery, CCME-glacier, Flathead County, GLAC, Glacier County, All tags... Glacier National Park, Montana, NPS, National Park Service, North America, United States, alpine glacier, cryosphere, environment, geoscientificInformation, glacier, glacier area, glacier retreat, margin, snow and ice cover, Fewer tags