Nagy, B., Igneczi, A. orcid.org/0000-0003-1529-8383, Kovács, J. et al. (2 more authors) (2019) Shallow ground temperature measurements on the highest volcano of the Earth, the Mt. Ojos del Salado, Arid Andes, Chile. Permafrost and Periglacial Processes, 30 (1). pp. 3-18. ISSN 1045-6740
Abstract
The Mt. Ojos del Salado (6893 m a.s.l.) is situated within the Andean Arid Diagonal, on the Chilean-Argentinean border. Due to the extremely arid climate, surface ice is not widespread on the Mt. Ojos del Salado and at similar high altitude massifs in the region, though ice-bearing permafrost might be present. However, the thermal regime of the ground is relatively unknown in the region, especially outside of rock glaciers at high elevations north of 30°S. To study ground thermal regimes, in-situ shallow ground temperature and snow coverage from satellite imagery have been surveyed for four years (2012-2016) at six sites between the elevations of 4200-6893 m a.s.l. on the Mt. Ojos del Salado (27°07ʹS, 68°32ʹW). According to the ground temperature and snow coverage data at the six monitoring sites, the presence of permafrost is unlikely below 4550 m a.s.l. but likely above 5250 m a.s.l. on the Mt. Ojos del Salado. It was also observed that the active layer becomes extremely thin around 6750 m a.s.l.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2018 John Wiley & Sons, Ltd. This is an author produced version of a paper subsequently published in Permafrost and Periglacial Processes. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Andes; ground temperature; permafrost; active layer; ground ice; aeolian processes |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Geography (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 10 Oct 2018 15:24 |
Last Modified: | 16 May 2024 13:43 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/ppp.1989 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136901 |