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Article

Hazards of Activation of Cryogenic Processes in the Arctic Community: A Geopenetrating Radar Study in Lorino, Chukotka, Russia

1
North-East Interdisciplinary Scientific Research Institute, Far-East Branch, Russian Academy of Sciences, Anadyr 686710, Russia
2
Institute of Physicochemical and Biological Problems in Soil Science of the Russian Academy of Sciences, Pushchino 142290, Russia
3
Faculty of Science: Earth and Climate, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
4
Faculty of Geography, Lomonosov Moscow State University, 119991 Moscow, Russia
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(2), 57; https://doi.org/10.3390/geosciences10020057
Received: 31 December 2019 / Revised: 23 January 2020 / Accepted: 27 January 2020 / Published: 4 February 2020
(This article belongs to the Section Natural Hazards)
The subsurface structure of permafrost is of high significance to forecast landscape dynamics and the engineering stability of infrastructure under human impacts and climate warming, which is a modern challenge for Arctic communities. Application of the non-destructive method of geo-penetrating radar (GPR) survey is a promising way to study it. The study program, which could be used for planning and monitoring of measures of adaptation of Arctic communities to environmental changes is provided in this paper. The main principle was to use etalons of coupled radargrams and archive geological data to interpret changes in the permafrost structure from a grid of 5–10 m deep GPR transects. Here, we show the application of GPR to reconstruct and predict hazards of activation of cryogenic processes from the spatial variability in the structure of permafrost. The cumulative effects of the village and climate change on permafrost were manifested in changes in the active layer thickness from 0.5−1.0 m to up to 3.5 m. Despite that the permafrost degradation has declined due to the improved maintenance of infrastructure and the effects of ground filling application, the hazards of heaving and thermokarst remain for the built-up area in Lorino. View Full-Text
Keywords: geohazards; georadar; near-surface; frost heaving; thermokarst; permafrost degradation; environmental change; GPR survey; geological and geophysical etalons; active layer; Arctic community geohazards; georadar; near-surface; frost heaving; thermokarst; permafrost degradation; environmental change; GPR survey; geological and geophysical etalons; active layer; Arctic community
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MDPI and ACS Style

Tregubov, O.; Kraev, G.; Maslakov, A. Hazards of Activation of Cryogenic Processes in the Arctic Community: A Geopenetrating Radar Study in Lorino, Chukotka, Russia. Geosciences 2020, 10, 57. https://doi.org/10.3390/geosciences10020057

AMA Style

Tregubov O, Kraev G, Maslakov A. Hazards of Activation of Cryogenic Processes in the Arctic Community: A Geopenetrating Radar Study in Lorino, Chukotka, Russia. Geosciences. 2020; 10(2):57. https://doi.org/10.3390/geosciences10020057

Chicago/Turabian Style

Tregubov, Oleg, Gleb Kraev, and Aleksey Maslakov. 2020. "Hazards of Activation of Cryogenic Processes in the Arctic Community: A Geopenetrating Radar Study in Lorino, Chukotka, Russia" Geosciences 10, no. 2: 57. https://doi.org/10.3390/geosciences10020057

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