Climatic and Environmental Features on Both Sides of the Lambert Glacier Basin

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  • 1. Geography and Environment College of Northwest Normal University, Lanzhou 730070, China;
    2. Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China

Received date: 2004-01-08

  Revised date: 2004-04-09

  Online published: 2004-09-25

Supported by

The Key International Cooperation Project of Ministry of Science and Technology of China, No.2001CB711003; National Natural Science Foundation of China, No.40305007; The Science and Technology Innovation Project of Northwest Normal University, No. NWNU-KJCXGC-02-20

Abstract

During the 1992-1993 joint Australian-Chinese over-snow traverse on the western Lambert Glacier Basin (LGB), two firn cores were drilled respectively at MGA and LGB16. During the 1996-1997 and 1997-1998 austral summers, two firn cores were drilled respectively at DT001 and DT085 on the eastern LGB. Based on the achievements made during the expeditions, the climatic and environmental features on both sides of the LGB have been studied. Results show that during the past 50 years, the trends of both air temperature and accumulation rate show a slight increase on the east side of the LGB, in contrast to the west side of the LGB. The spatial trends of the accumulation rate measured by accumulation canes at 2 km intervals along the nearly 500 km of the traverse lines on both sides of the LGB are different. Moreover, correlations of δ18O vs T10 along the two sides of the LGB are also different. In addition, the variations of sea salt ion concentrations show different trends in the past 50 years. All the evidences show the Lambert Glacier is a dividing region for the different climatic regimes over the East Antarctic ice sheet, which may be due to different moisture resources resulted from the special local circumfluence such as cyclone activities and local terrain influences. The International Trans-Antarctic Scientific Expedition (ITASE) has its initial aim to reveal an overall spatial pattern of climatic change on Antarctic ice sheet for the past 200 years. This study re-confirms the importance of continental to regional scaled circulation to annual-decadal scaled climatic change in Antarctica.

Cite this article

ZHANG Mingjun, XIAO Cunde, REN Jiawen, LI Zhongqin, QIN Dahe . Climatic and Environmental Features on Both Sides of the Lambert Glacier Basin[J]. Acta Geographica Sinica, 2004 , 59(5) : 709 -715 . DOI: 10.11821/xb200405008

References


[1] Fricker H A, Warner R C, Allison I. Mass balance of the Lambert Glacier-Amery Ice Shelf system, East Antarctica: a comparison of computed balance fluxes and measured fluxes. Journal of Glaciology, 2000, 46(155): 561-570.

[2] Phillips H A. Applications of ERS satellite radar altimetry in the Lambert Glacier-Amery Ice Shelf system, East Antarctica. (Ph.D. Thesis, University of Tasmania), 1999.

[3] Allsion I. The mass budget of the Lambert Glacier drainage basin, Antarctica. Journal of Glaciology, 1979, 22(87): 223-235.

[4] Ren Jiawen, Qin Dahe, Xiao Cunde et al. Mass balance of the Lambert Glacier basin and the change of Antarctic ice sheet. World Science and Technology Research and Development, 2002, 24(4): 87-92.
[任贾文, 秦大河, 效存德 等. Lambert 冰川流域物质平衡和南极冰盖变化. 世界科技研究与发展, 2002, 24(4): 87-92.]

[5] Budd W F, Smith I L, Wishart E. The Amery Ice Shelf. In: Oura H (ed.), Physics of Snow and Ice, Vol. 1, Part 1. Saporo, Japan: Hokkaido University, 1967. 447-467.

[6] Budd W F, Corry M J, Jacka T H. Results from the Amery Ice Shelf Project. Annals of Glaciology, 1982, 3: 36-41.

[7] Morgan V I, Jacka T H. Mass balance studies in East Antarctica. IAHS Publ., 1981, 131: 253-260.

[8] Highham M, Greven M. Surface mass balance and snow surface properties from the Lambert Glacier basin traverses 1990-94. Hobart, Tasmania, Australia: Antarctic CRC, Research Report 9, 1997.

[9] Ren Jiawen, Qin Dahe, Allison I. Distribution of stable isotopes in surface snow and climatic change in past decades over the Lambert Glacier basin, East Antarctica. Journal of Glaciology and Geocryology, 1998, 20(4): 425-431.

[10] Ren Jiawen, Qin Dahe, Allison I. Variations of snow accumulation and temperature over past decades in the Lambert Glacier basin, East Antarctica. Annals of Glaciology, 1999, 29: 29-32.

[11] Zhang Mingjun, Li Zhongqin, Qin Dahe et al. A continuous 250-year record of volcanic activity from Princess Elizabeth Land, Antarctica. Antarctic Science, 2002, 14(1): 55-60.

[12] Xiao Cunde, Qin Dahe. Climate regime of the coastal Antarctic ice sheet over the past 50 years indicated by the ice-core and meteorogical records. Journal of Glaciology and Geocryology, 2003, 25(1): 1-10.
[效存德, 秦大河. 冰芯和台站记录的近50年来东南极冰盖边缘地区气候变化格局. 冰川冻土, 2003, 25(1): 1-10.]

[13] Li Zhongqin, Zhang Mingjun, Qin Dahe et al. Primary research on the seasonal variations of δ18O, Cl-, NO3-, Na+ and Ca2+ in the snow and firn recovered from Princess Elizabeth Land, Antarctica. Chinese Science Bulletin, 1999, 44(19): 2114-2118.
[李忠勤, 张明军, 秦大河 等. 南极洲伊丽莎白公主地区冰雪中δ18O, Cl-, NO3-, Na+ 和Ca2+ 年层效应初探. 科学通报, 1999, 44(19): 2114-2118.]

[14] Qin Dahe, Ren Jiawen, Kang Jiancheng et al. Primary results of glaciological study along a 1100 km transect from Zhongshan Station to Dome A, East Antarctic ice sheet. Annals of Glaciology, 2000, 31: 198-204.

[15] Ren Jiawen, Xiao Cunde, Qin Dahe et al. Mass balance of the Lambert Glacier basin and the change of Antarctic ice sheet. Progress in Natural Science, 2002, 12(10): 1064-1069.
[任贾文, 效存德, 秦大河. Lambert冰川流域物质平衡和南极冰盖变化. 自然科学进展, 2002, 12(10): 1064-1069.]

[16] Dansgaard W, Johnsen S J. Stable isotope glaciology. Meddelelserom Groenland, 1973, 197(2): 1-53.

[17] Robin G de Q (ed.). The climatic record in polar ice sheets. Cambridge, England: Cambridge University Press, 1983.

[18] Qin Dahe, Petit J R, Jouzel J et al. Distribution of stable isotopes in surface snow along the route of the 1990 International Trans-Antarctica Expedition. Journal of Glaciology, 1994, 40(134): 107-118.

[19] Sun Junying. Study on chemistry of aerosol and snow/ice from cryosphere: cases studies at the Antarctic, the Arctic and western China. Ph.D. Thesis, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 2002.
[孙俊英. 冰冻圈大气气溶胶和雪冰化学研究--以南、北极和中国西部高山区为例. 中国科学院寒区旱区环境与工程研究所博士论文, 2002.]

[20] Sun Junying, Ren Jiawen, Qin Dahe. 60 years record of biogenic sulfur from Lambert Glacier basin firn core, East Antarctica. Annals of Glaciology, 2002, 35: 362-367.

[21] Morgan V I, Goodwin I D, Etheridge D M et al. Evidence from Antarctic ice core for recent increase in snow accumulation. Nature, 1991, 354(6348): 58-60.

[22] Bromwich D H. Snowfall in high southern latitudes. Review of Geophysics, 1988, 26 (1): 149-168.

[23] Connolley W M, King J C. A modeling and observational study of East Antarctic surface mass balance. Journal of Geophysical Research, 1996, 101(D1): 1335-1343.

[24] Slonaker R L, Van Woert M L. Atmospheric moisture transport across the Southern Ocean via satellite observations. Journal of Geophysical Research, 1999, 104(D8): 9229-9249.

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