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2003 , Vol. 23 >Issue 5: 560 - 563

DOI: https://doi.org/10.13249/j.cnki.sgs.2003.05.560

Concentration Variation Features of Sea Salt Ions and Non Sea Salt Ions in the Firn Core Recovered from Princess Elizabeth Land, East Antarctica

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  • 1. Geography and Environment College, Northwest Normal University, Lanzhou, Gansu 730070;
    2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000;
    3. Chinese Institute of Polar Research, Shanghai 200129;
    4. Antarctic Cooperation Research Center and Australian Antarctic Division, Hobart 7001, Australia

Received date: 2002-11-11

  Revised date: 2003-01-15

  Online published: 2003-09-20

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Abstract

A 50m firn core drilled in Princess Elizabeth Land, Antarctica, during the 1996/1997 Chinese First Antarctic Inland Expedition, has been measured for major ions.Based on the high quality of the seasonal variations of major ions, the firn core was dated with errors within ?3 years.The 51.85 m firn core record extends for 251 years (A.D.1745-1996).The results of the glaciochemistry data of the firn core show that the mean concentrations of Cl-, Na+ and Mg2+ are similar to those reported from other coastal areas in East Antarctica.However, mean concentrations of Ca2+ are much higher than those reported from other regions, this anomaly phenomenon may be related to the strong local terrestrial sources.It is found that the variations of three kinds of sea salt ions (Cl-, Na+ and Mg2+) in the past 150 years show very similarly rising trends, which may be the results the Southern Hemisphere warming in the past century.

Cite this article

ZHANG Ming-Jun, REN Jia-Wen, XIAO Cun-De, LI Zhong-Qin, QIN Da-He, KANG Jian-Cheng, LI Jun . Concentration Variation Features of Sea Salt Ions and Non Sea Salt Ions in the Firn Core Recovered from Princess Elizabeth Land, East Antarctica[J]. SCIENTIA GEOGRAPHICA SINICA, 2003 , 23(5) : 560 -563 . DOI: 10.13249/j.cnki.sgs.2003.05.560

References

[1] Mulvaney R,Wolf E W.Spatial variability of the major chemistry of the Antarctic ice sheet[J].Annals of Glaciology,1994,(20):440-447.
[2] Zhang Mingjun,Li Zhongqin,Xiao Cunde,et al.A continuous 250a record of volcanic activity from Princess Elizabeth Land,Antarctica [J].Antarctic Science,2002,14(1):55-60.
[3] 张明军,李忠勤,效存德,等.南极伊利莎白公主地250年来NO-3 浓度变化特征研究 [J].自然科学进展,2003,13(6):72~76.
[4] Li Zhongqin,Zhang Mingjun,Qin Dahe,et al.Primary research on the seasonal variations of δ18O,Cl-,NO-3,Na+ and Ca2+in the snow and firn recovered from Princess Elizabeth Land,Antarctica [J].Chinese Science Bulletin,1999,44 (24):2270-2274.
[5] Zhang Mingjun,Li Zhongqin,Qin Dahe,et al.The primary research on the environmental climatic records of the two snow pits recovered from Princess Elizabeth Land,Antarctica [J].Chinese Journal of Polar Science,1999,10 (1):61-66.
[6] 秦大河,任贾文.南极冰川学[M].北京:科学出版社,2001.104~169.
[7] 汪大立,康建成,孙 波,等.南极中山站至内陆冰盖330 km剖面表面雪样微粒分布特征及其意义 [J].冰川冻土,2000,22 (2):128~133.
[8] Isaksson E,Karlén W,Mayewski P,et al.A high-altitude snow chemistry records from Amundsenisen,Droning Maud Land,Antarctica [J].Journal of Glaciology,2001,47(158):489-496.
[9] Whitlow S,Mayewski P,Dibb J E.A comparison of major chemical species seasonal concentration at the South Pole and Summit,Greenland [J].Atmospheric Environment,1992,26(11):2045-2054.
[10] Legrand M R,Delmas R J.Formation of HCl in the Antarctic atmosphere [J].Journal of Geophysical Research,1988,(93):7153-7168.
[11] Jone P D,New M,Parker D E,et al.Surface air temperature and its changes over the past 150 years[J].Reviews of Geophysics,1999,37:173-184.
[12] Wu X R,Budd W F,Jack T H.Simulations of Southern Hemisphere warming and Antarctic sea-ice changes using global climate model [J].Annals of Glaciology,1999,29:61-65.
[13] 秦大河.南极冰盖表层雪内的物理过程和现代气候及环境记录[M].北京:科学出版社,1995.98~124.
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