Using the MODIS Land Surface Temperature Product for mapping permafrost : an application to northern Quebec and Labrador, Canada

The Permafrost Young Researchers Network (PYRN). Special issue

Auteur(s) et Affiliation(s)

HACHEM, S.

Centre d'études nordiques et dep. géographie, Univ. Laval, Sainte-Foy, Canada

ALLARD, M.

Centre d'études nordiques et dep. géographie, Univ. Laval, Sainte-Foy, Canada

DUGUAY, C.

Dep. Geography and Environmental Management, Fac. of Environment, Univ. Ontario, Waterloo, Canada

LEWKOWICZ, A.

Univ., Ottawa, Canada

Description :
The Land Surface Temperature (LST) products of the Moderate Resolution Imaging Spectroradiometers (MODIS) aboard NASA's Terra and Aqua satellites were used to develop maps of annual near-surface temperatures for comparison with the spatial distribution of permafrost and boundaries of the permafrost zones. The methodological approach is presented. Calculations of mean annual surface temperatures and of thawing and freezing indices led to the development of regional maps, in this case for northern Québec and Labrador. The maps show the expected geographic distribution of near-surface temperatures and acceptably represent known permafrost boundaries. Ongoing efforts to incorporate snow and vegetation cover from complementary remotely sensed data should improve the ground surface temperature mapping capability based on this approach.

Type de document :
Article de monographie

Source :
Permafrost and periglacial processes, issn : 1045-6740, 2009, vol. 20, n°. 4, p. 407-416, nombre de pages : 10, Références bibliographiques : 1 p.

Date :
2009

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais