Title Thermal state of permafrost and active- layer monitoring in the Antarctic; advances during the International Polar Year 2007- 2009
Author Vieira, G.; Bockheim, J.; Guglielmin, M.; Balks, M.; Abramov, A.A.; Boelhouwers, J.; Cannone, N.; Ganzert, L.; Gilichinsky, D.A.; Goryachkin, S.; López-Martínez, J.; Meiklejohn, I.; Raffi, R.; Ramos, M.; Schaefer, C.; Serrano, E.; Simas, F.; Sletten, R.; Wagner, D.
Author Affil Vieira, G., University of Lisbon, Institute of Geography and Territorial Planning, Lisbon, Portugal. Other: University of Wisconsin; Insubria University, Italy; University of Waikato, New Zealand; Russian Academy of sciences, Russian Federation; Uppsala University, Sweden; University of Ferrara, Italy; Alfred Wegener Institute for Polar and Marine Research, Germany; Universidad Autónoma de Madrid, Spain; Rhodes University, South Africa; Sapienza University, Italy; University of Alcalá, Spain; Federal University of Viçosa, Brazil; University of Valladolid, Spain; University of Washington
Source The International Polar Year, edited by A.G. Lewkowicz. Permafrost and Periglacial Processes, 21(2), p.182-197, . Publisher: Wiley, Oxford, United Kingdom. ISSN: 1045- 6740
Publication Date Jun. 2010
Notes In English. 45 refs. Ant. Acc. No: 89825. CRREL Acc. No: 65001982
Index Terms active layer; boreholes; permafrost; permafrost thickness; soils; soil temperature; temperature; thermal regime; thickness; Antarctica; International Polar Year 2007-08; IPY 2007-08 Research Publications; monitoring
Abstract Results obtained during the International Polar Year (IPY) on the thermal state of permafrost and the active layer in the Antarctic are presented, forming part of ANTPAS ("Antarctic Permafrost and Soils"), which was one of the key projects developed by the International Permafrost Association and the Scientific Committee for Antarctic Research for the IPY. The number of boreholes for permafrost and active-layer monitoring was increased from 21 to 73 during the IPY, while CALM-S sites to monitor the active layer were increased from 18 to 28. Permafrost temperatures during the IPY were slightly below 0°C in the South Shetlands near sea-level, showing that this area is near the climatic boundary of permafrost and has the highest sensitivity to climate change in the region. Permafrost temperatures were much lower in continental Antarctica: from the coast to the interior and with increasing elevation they ranged between -13.3°C and - 18.6°C in Northern Victoria Land, from - 17.4°C to -22.5°C in the McMurdo Dry Valleys, and down to -23.6°C at high elevation on Mount Fleming (Ross Island). Other monitored regions in continental Antarctica also showed cold permafrost: Queen Maud Land exhibited values down to -17.8°C on nunataks, while in Novolazarevskaya (Schirmacher Oasis) at 80 m a.s.l. the permafrost temperature was -8.3°C. The coastal stations of Molodeznaya at Enderby Land showed permafrost temperatures of -9.8°C, Larsemann Hills--Progress Station in the Vestfold Hills region--recorded - 8.5°C, and Russkaya in Marie Byrd Land, - 10.4°C. This snapshot obtained during the IPY shows that the range of ground temperatures in the Antarctic is greater than in the Arctic. Abstract Copyright (2010), Wiley Periodicals, Inc.
URL http://hdl.handle.net/10.1002/ppp.685
Publication Type journal article
Record ID 304400