Mountain permafrost on active volcanoes: field data and statistical mapping, Klyuchevskaya volcano group, Kamchatka, Russia

Permafrost is widespread in mountainous volcanic areas of the Kamchatka Peninsula. In this paper, we describe geocryological conditions (active layer depths, permafrost temperatures, ground thermal properties and cryostratigraphy) in the Klyuchevskaya volcano group and estimate the spatial distribut...

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Bibliographic Details
Published in:Permafrost and periglacial processes 2008-07, Vol.19 (3), p.261-277
Main Authors: Abramov, A., Gruber, S., Gilichinsky, D.
Format: Article
Language:English
Subjects:
active layer
active volcanoes
Bgi / Prodig
Cold areas
Geomorphology
ground properties
ground temperatures
Kamchatka
mountain permafrost
Physical geography
statistical modelling
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Summary:Permafrost is widespread in mountainous volcanic areas of the Kamchatka Peninsula. In this paper, we describe geocryological conditions (active layer depths, permafrost temperatures, ground thermal properties and cryostratigraphy) in the Klyuchevskaya volcano group and estimate the spatial distribution of permafrost using a simple statistical model. Measured mean annual ground temperatures (MAGTs) vary from near 0°C around 950 m a.s.l. to −7°C at 2500 m a.s.l. and permafrost is predicted to occur at elevations >∼700 m a.s.l. Heat transfer modelling indicates that the maximum permafrost thickness is about 1000 m for the highest summits (∼5000 m a.s.l.). Copyright © 2008 John Wiley & Sons, Ltd.
ISSN:1045-6740
1099-1530
DOI:10.1002/ppp.622