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TitreGlaciers of the ragged range, Nahanni National Park reserve, Northwest Territories, Canada
AuteurDemuth, M N; Wilson, P; Haggarty, D
SourceGlobal land ice measurements from space; par Kargel, J S (éd.); Leonard, G J (éd.); Bishop, M P; Kääb, A; Raup, B H; 2014 p. 375-383, https://doi.org/10.1007/978-3-540-79818-7 16
Année2014
Séries alt.Secteur des sciences de la Terre, Contribution externe 20120325
ÉditeurSpringer
Documentlivre
Lang.anglais
DOIhttps://doi.org/10.1007/978-3-540-79818-7 16
Mediapapier; en ligne; numérique
Formatspdf
ProvinceTerritoires du Nord-Ouest; Yukon
SNRC95E/13; 95E/14; 95L/03; 95L/04; 105H/16; 105I/01
Lat/Long OENS-128.2500 -127.2500 62.2500 61.7500
Sujetsglaciers; glaciologie; topographie glaciaire; nappes glaciaires; glace; morphologie de la glace; champs de glace; géologie des dépôts meubles/géomorphologie
Illustrationslocation maps; plots; photographs
ProgrammeLes sciences de la Terre à l'appui de la caractérisation, à l'échelle nationale, des impacts des changements climatiques sur la masse continentale canadienne, Géosciences de changements climatiques
Résumé(disponible en anglais seulement)
A 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.
GEOSCAN ID292073