Title Evaluation of recent changes in the ground thermal state, central Yakutia
Author Skryabin, P.N.; Varlamov, S.P.; Skachkov, Y.B.
Author Affil Skryabin, P.N., Russian Academy of Sciences, Siberian Branch, Melnikov Permafrost Institute, Yakutsk, Russian Federation
Source International Conference on Permafrost (ICOP) Proceedings, Vol.9, p.1653-1657, ; Ninth international conference on Permafrost, Fairbanks, AK, June 29-July 3, 2008, edited by D.L. Kane and K.M. Hinkel. Publisher: [publisher varies], [location varies], International. ISBN: 978-0-9800179-3- 9
Publication Date 2008
Notes In English. 12 refs. CRREL Acc. No: 62006210
Index Terms climate; climatic change; glacial geology; permafrost; permafrost thermal properties; soils; soil temperature; temperature; thermal properties; thermal regime; Russia--Yakutia region; Asia; climate change; Commonwealth of Independent States; International Polar Year 2007-08; IPY 2007-08 Research Publications; landscapes; monitoring; periglacial features; Russian Federation; Siberian Platform; Yakutia region
Abstract Developing an understanding of permafrost evolution in relation to observed climatic warming requires evaluation of changes in the thermal state of near-surface layers. This paper is based on the results of 25 years of geothermal monitoring at 60 sites. The study is focused on the upper permafrost within the depth of annual temperature variation (10-15 m). The integrated research program involves landscape, microclimatic, thermophysical, and hydrothermal methods. Systematization and mapping generalization of permafrost landscapes have been made with indication of the complexity of geocryological conditions. During the last 30 years, the study area has experienced the highest increasing trend in mean annual air temperature in northern Russia. A database has been compiled that includes parameters needed for geocryological predictions. Proposals for cooperation in implementing IPY projects and establishing a single observational network for geocryological monitoring in cold regions of Russia are presented. Experimental research made it possible to quantitatively evaluate the interannual and perennial variability of the active layer thickness and thermal state of the ground within the depth of annual temperature variations.
Publication Type conference paper or compendium article
Record ID 286029