ARCTIC CITIES, PERMAFROST AND CHANGING CLIMATIC CONDITIONS

Dmitry Streletskiy, Nikolay Shiklomanov, Vasily Kokorev, Oleg Anisimov

In the proceedings of: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference

Session: Northern Communities / Communautés nordiques

ABSTRACT: Climate change has resulted in permafrost degradation in numerous locations across the Arctic. The effects of climate change are exacerbated in areas of intensive human activity, particularly large industrial centers on permafrost. We used a combination of modeling techniques and field observations to evaluate how changes in climatic conditions have affected permafrost geotechnical properties in Russian large urban settlements such as Norilsk, Salekhard, Yakutsk, and Anadyr. The results show that there have been substantial decreases in foundation bearing capacity in all of these cities on permafrost from the 1970s to present. The projected changes under the six selected climate models show further decreases in foundation bearing capacity by the year 2050.

RÉSUMÉ: Les changements climatiques ont entraîné la dégradation du pergélisol dans plusieurs endroits à travers l'Arctique. Leurs effets sur le pergélisol sont exacerbés dans les zones d™activité humaine intensive, particulièrement dans les grands centres industriels. Une combinaison de techniques de modélisation et des observations de terrain ont permis d™évaluer comment les changements dans les conditions climatiques ont affecté les propriétés géotechniques du pergélisol dans les grandes agglomérations urbaines russes comme Noril'sk, Salekhard, Yakutsk, et Anadyr. Les résultats montrent qu'il y a eu des baisses substantielles de la capacité portante des fondations du pergélisol dans ces villes de 1970 à aujourd'hui . Les changements prévus pour six modèles climatiques sélectionnés montrent de nouvelles baisses de la capacité portante en 2050.

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Cite this article:
Dmitry Streletskiy; Nikolay Shiklomanov; Vasily Kokorev; Oleg Anisimov (2015) ARCTIC CITIES, PERMAFROST AND CHANGING CLIMATIC CONDITIONS in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.

@article{123,author = Dmitry Streletskiy; Nikolay Shiklomanov; Vasily Kokorev; Oleg Anisimov,title = ARCTIC CITIES, PERMAFROST AND CHANGING CLIMATIC CONDITIONS,year = 2015}