Minimum snow and ice coverage for GNP, 2003-2015

To determine minimum coverage of perennial snow and ice cover for Glacier National Park, the minimum extent of glaciers and multi-year snow features were digitized from satellite imagery (10-meter NAPP 2003, NAIP 2005, and NAIP 2013, and 30-cm resolution, multispectral, pansharpened Digital Globe WorldView satellite imagery collected in late summer and fall 2015). Features were digitized in ArcGIS version 10.2 using a Wacom Intuos 4 digitizing tablet. Snow and ice features were classified as glacier, large ice mass, or perennial snow/ice. Glaciers were based on current, named glaciers. Remnant ice features not large enough to be classified as glaciers, but showing evidence of crevasses, were classified as large ice masses. Any other snow features present during driest years (mostly 2003), were classified as permanent snow. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Data and Resources

Field Value
accessLevel public
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datagov_dedupe_retained 20220722114234
identifier USGS:5e6925fae4b01d50925cff3c
metadata_type geospatial
modified 20200826
old-spatial {"type": "Polygon", "coordinates": [[[-114.2525, 48.2691], [-114.2525, 49.0219], [ -113.3047, 49.0219], [ -113.3047, 48.2691], [-114.2525, 48.2691]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 6c885f1237e829968045d77745dff02c229f55a6
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spatial {"type": "Polygon", "coordinates": [[[-114.2525, 48.2691], [-114.2525, 49.0219], [ -113.3047, 49.0219], [ -113.3047, 48.2691], [-114.2525, 48.2691]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biota
  • ckan
  • cryosphere
  • geo
  • geospatial
  • geoss
  • glacier
  • glacier-national-park
  • land-use-change
  • montana
  • national
  • north-america
  • remote-sensing
  • snow
  • united-states
  • usgs-5e6925fae4b01d50925cff3c
isopen False
license_id notspecified
license_title License not specified
maintainer Jonathan J Giersch
maintainer_email jgiersch@usgs.gov
metadata_created 2025-11-20T02:35:51.497364
metadata_modified 2025-11-20T02:35:51.497368
notes To determine minimum coverage of perennial snow and ice cover for Glacier National Park, the minimum extent of glaciers and multi-year snow features were digitized from satellite imagery (10-meter NAPP 2003, NAIP 2005, and NAIP 2013, and 30-cm resolution, multispectral, pansharpened Digital Globe WorldView satellite imagery collected in late summer and fall 2015). Features were digitized in ArcGIS version 10.2 using a Wacom Intuos 4 digitizing tablet. Snow and ice features were classified as glacier, large ice mass, or perennial snow/ice. Glaciers were based on current, named glaciers. Remnant ice features not large enough to be classified as glaciers, but showing evidence of crevasses, were classified as large ice masses. Any other snow features present during driest years (mostly 2003), were classified as permanent snow. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
num_resources 2
num_tags 18
title Minimum snow and ice coverage for GNP, 2003-2015