Skip to main content
Advanced Search

Filters: Types: OGC WMS Layer (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Northern Rocky Mountain Science Center (X)

3 results (40ms)   

View Results as: JSON ATOM CSV
thumbnail
These polygon features represent the maximum extent of the 37 named glaciers in Glacier National Park and two glaciers on U.S. Forest Service’s Flathead National Forest land during the peak of the Little Ice Age (mid-nineteenth century). Glacial margins are based on moraine deposits that result from active glaciation, and do not depict perennial snow and ice. Moraines were digitized based on WorldView imagery acquired on the following dates: 20141019, 20150822, 20150912, 20150925, 20160821, 20160915 (World View 01 and World View 03 satellites). High resolution imagery was supplemented with oblique aerial photographs flown in 2009 and 2016, historic photographs from the USGS photograph collection, and field notes...
thumbnail
This data release consists of a time series of digitized glacier margins for the 37 named glaciers of Glacier National Park (GNP) and two glaciers on U.S. Forest Service’s Flathead National Forest land. The polygons represent the main body portion of each glacier as analyzed from aerial imagery from the years 1966, 1998, 2005 and 2015. Disconnected patches are not included as this dataset represents only the main body features of the named glaciers in GNP and environs. File attributes list specific source imagery.
thumbnail
These polygon features represent the maximum extent of glaciers in Glacier National Park and two glaciers on U.S. Forest Service’s Flathead National Forest land during the peak of the Little Ice Age (mid-nineteenth century). Glacial margins are based on moraine deposits that result from active glaciation, and do not depict perennial snow and ice. The criteria used for determining which moraines constituted a former glacier were a) whether a terminal moraine was present, and b) whether the glacier area was five aces or more. Moraines were digitized based on the best available imagery, including WorldView imagery acquired between 2015 and 2017, border Imagery from the Department of Homeland Security acquired in 2009...
    map background search result map search result map Glacier margin time series (1966, 1998, 2005, 2015) of the named glaciers of Glacier National Park, MT, USA A comprehensive inventory of maximum glacial extent in Glacier National Park during the peak of the Little Ice Age Maximum glacial extent of the named glaciers in Glacier National Park during the peak of the Little Ice Age Glacier margin time series (1966, 1998, 2005, 2015) of the named glaciers of Glacier National Park, MT, USA Maximum glacial extent of the named glaciers in Glacier National Park during the peak of the Little Ice Age A comprehensive inventory of maximum glacial extent in Glacier National Park during the peak of the Little Ice Age