Single-year thermal regime and inferred permafrost occurrence in the upper Ganglass catchment of the cold-arid Himalaya, Ladakh, India.
Active layer thickness
Cold-arid
GEOtop model
Himalayas
Permafrost
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
10 Feb 2020
10 Feb 2020
Historique:
received:
19
03
2019
revised:
21
09
2019
accepted:
22
09
2019
pubmed:
15
11
2019
medline:
15
11
2019
entrez:
15
11
2019
Statut:
ppublish
Résumé
Cold-arid regions of the trans-Himalaya in the Indian Himalayan Region (IHR) is suspected to have a significant area of permafrost. However, information on the ground thermal regime of these permafrost areas is so far not available. This study bridge this knowledge gap by analysing the sub-surface thermal regime of selected sites in the Ganglass catchment, Ladakh range. Near surface ground temperature data recorded during September 2016 to August 2017 using 24-miniature temperature data loggers distributed across 12 plots and covering an elevation range of 4700-5612 m a.s.l. are used in this study. Permafrost characteristics including plausible ranges of thermal offset, active-layer thickness and mean annual ground temperature at 10 m depth were estimated by driving a one-dimensional heat conduction model. Two statistical models were used to map first order estimates of permafrost area in this 15.4 km
Identifiants
pubmed: 31726296
pii: S0048-9697(19)34622-4
doi: 10.1016/j.scitotenv.2019.134631
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
134631Informations de copyright
Crown Copyright © 2019. Published by Elsevier B.V. All rights reserved.