2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories

The extent of near-surface permafrost, or perennially frozen ground within 3m of the surface, was estimated for the Mackenzie River delta by determining its association with riparian vegetation communities in the field, and by subsequently mapping these vegetation communities using SPOT-5 data and t...

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Main Authors: T-n. Nguyen, C. R. Burn, D. J. King, S. L. Smith
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.6343
http://http-server.carleton.ca/~dking/papers/ppp09.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.536.6343 2023-05-15T17:09:30+02:00 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories T-n. Nguyen C. R. Burn D. J. King S. L. Smith The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.6343 http://http-server.carleton.ca/~dking/papers/ppp09.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.6343 http://http-server.carleton.ca/~dking/papers/ppp09.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://http-server.carleton.ca/~dking/papers/ppp09.pdf text ftciteseerx 2016-01-08T10:50:48Z The extent of near-surface permafrost, or perennially frozen ground within 3m of the surface, was estimated for the Mackenzie River delta by determining its association with riparian vegetation communities in the field, and by subsequently mapping these vegetation communities using SPOT-5 data and the supervised maximum-likelihood classification technique. Near-surface permafrost was absent beneath willow–horsetail (Salix-Equisetum) vegetation communities on point bars and alluvial islands throughout the delta and beneath horsetail (Equisetum) communities in the southern and central delta. Near-surface permafrost was found beneath all other vegetation communities and land surface types. Multispectral SPOT-5 data were classified with overall accuracies greater than 80 per cent. Using the remotely sensed vegetation community data, near-surface permafrost was estimated to occur beneath 93 per cent, 95 per cent and 96 per cent of the land surface within the investigation areas of the southern, central and northern delta, respectively. In contrast to the most Text Mackenzie Delta Mackenzie river Northwest Territories permafrost Unknown Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Mackenzie River Northwest Territories
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description The extent of near-surface permafrost, or perennially frozen ground within 3m of the surface, was estimated for the Mackenzie River delta by determining its association with riparian vegetation communities in the field, and by subsequently mapping these vegetation communities using SPOT-5 data and the supervised maximum-likelihood classification technique. Near-surface permafrost was absent beneath willow–horsetail (Salix-Equisetum) vegetation communities on point bars and alluvial islands throughout the delta and beneath horsetail (Equisetum) communities in the southern and central delta. Near-surface permafrost was found beneath all other vegetation communities and land surface types. Multispectral SPOT-5 data were classified with overall accuracies greater than 80 per cent. Using the remotely sensed vegetation community data, near-surface permafrost was estimated to occur beneath 93 per cent, 95 per cent and 96 per cent of the land surface within the investigation areas of the southern, central and northern delta, respectively. In contrast to the most
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author T-n. Nguyen
C. R. Burn
D. J. King
S. L. Smith
spellingShingle T-n. Nguyen
C. R. Burn
D. J. King
S. L. Smith
2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
author_facet T-n. Nguyen
C. R. Burn
D. J. King
S. L. Smith
author_sort T-n. Nguyen
title 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
title_short 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
title_full 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
title_fullStr 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
title_full_unstemmed 2009: Estimating the extent of near-surface permafrost using remote sensing, Mackenzie Delta, Northwest Territories
title_sort 2009: estimating the extent of near-surface permafrost using remote sensing, mackenzie delta, northwest territories
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.6343
http://http-server.carleton.ca/~dking/papers/ppp09.pdf
long_lat ENVELOPE(-136.672,-136.672,68.833,68.833)
geographic Mackenzie Delta
Mackenzie River
Northwest Territories
geographic_facet Mackenzie Delta
Mackenzie River
Northwest Territories
genre Mackenzie Delta
Mackenzie river
Northwest Territories
permafrost
genre_facet Mackenzie Delta
Mackenzie river
Northwest Territories
permafrost
op_source http://http-server.carleton.ca/~dking/papers/ppp09.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.6343
http://http-server.carleton.ca/~dking/papers/ppp09.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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