Baseline characteristics of climate, permafrost and land cover from a new permafrost observatory in the Lena River Delta, Siberia (1998-2011)

被引:134
作者
Boike, J. [1 ]
Kattenstroth, B. [1 ]
Abramova, K. [2 ]
Bornemann, N. [1 ]
Chetverova, A. [3 ,4 ]
Fedorova, I. [3 ,4 ]
Froeb, K. [1 ]
Grigoriev, M. [5 ]
Grueber, M. [1 ]
Kutzbach, L. [6 ]
Langer, M. [1 ]
Minke, M. [7 ]
Muster, S. [1 ]
Piel, K. [1 ]
Pfeiffer, E. -M. [6 ]
Stoof, G. [1 ]
Westermann, S. [8 ]
Wischnewski, K. [1 ]
Wille, C. [6 ]
Hubberten, H. -W. [1 ]
机构
[1] Alfred Wegener Inst Polar & Marine Res, D-14473 Potsdam, Germany
[2] Lena Delta Nat Reserve, Tiksi 678400, Yakutia, Russia
[3] Arctic & Antarctic Res Inst, St Petersburg 199397, Russia
[4] St Petersburg State Univ, St Petersburg 199178, Russia
[5] Russian Acad Sci, Melnikov Permafrost Inst, Siberian Branch, Yakutsk, Russia
[6] Univ Hamburg, Inst Soil Sci, Hamburg, Germany
[7] Ernst Moritz Arndt Univ Greifswald, Inst Bot & Landscape Ecol, Greifswald, Germany
[8] Univ Oslo, Dept Geosci, Oslo, Norway
关键词
SURFACE-ENERGY-BALANCE; EDDY COVARIANCE MEASUREMENTS; POLYGONAL TUNDRA SITE; WESTERN ARCTIC COAST; THERMAL STATE; METHANE EMISSION; NORTHERN SIBERIA; WATER-BALANCE; EVAPOTRANSPIRATION; VEGETATION;
D O I
10.5194/bg-10-2105-2013
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Samoylov Island is centrally located within the Lena River Delta at 72 degrees N, 126 degrees E and lies within the Siberian zone of continuous permafrost. The landscape on Samoylov Island consists mainly of late Holocene river terraces with polygonal tundra, ponds and lakes, and an active floodplain. The island has been the focus of numerous multidisciplinary studies since 1993, which have focused on climate, land cover, ecology, hydrology, permafrost and limnology. This paper aims to provide a framework for future studies by describing the characteristics of the island's meteorological parameters (temperature, radiation and snow cover), soil temperature, and soil moisture. The land surface characteristics have been described using high resolution aerial images in combination with data from ground-based observations. Of note is that deeper permafrost temperatures have increased between 0.3 to 1.3 degrees C over the last five years. However, no clear warming of air and active layer temperatures is detected since 1998, though winter air temperatures during recent years have not been as cold as in earlier years. Data related to this article are archived under: http://doi.pangaea.de/10.1594/PANGAEA.806233.
引用
收藏
页码:2105 / 2128
页数:24
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