GEOSCAN Search Results: Fastlink


TitleGlaciers of the ragged range, Nahanni National Park reserve, Northwest Territories, Canada
AuthorDemuth, M N; Wilson, P; Haggarty, D
SourceGlobal land ice measurements from space; by Kargel, J S (ed.); Leonard, G J (ed.); Bishop, M P; Kääb, A; Raup, B H; 2014 p. 375-383, 16
Alt SeriesEarth Sciences Sector, Contribution Series 20120325
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories; Yukon
NTS95E/13; 95E/14; 95L/03; 95L/04; 105H/16; 105I/01
AreaNahanni National Park
Lat/Long WENS-128.2500 -127.2500 62.2500 61.7500
Subjectssurficial geology/geomorphology; glaciers; glaciology; glacial landforms; ice sheets; ice; ice morphology; icefields
Illustrationslocation maps; plots; photographs
ProgramEarth Science for National Scale Characterization of Climate Change Impacts on Canada's Landmass, Climate Change Geoscience
AbstractA new glacier inventory was developed for the Ragged Range, an area only recently added to Nahanni National Park Reserve, Northwest Territories. Federal mapping from aerial photography in 1982 was compared with Landsat satellite imagery from 2008. Glacier cover decreased in area by 30 % over that period; the greatest percentage loss was in glaciers with areas between 1 and 10 km2, while the largest number of disappearances was of glaciers 0.1-1 km2 in area. The smallest glaciers less than 0.1 km2 in area showed little loss to modest growth in topographic niches protected from solar radiation. Recommendations for further work in this environmentally significant frontier region are provided.