Advanced Search

Indexed by SCI、CA、РЖ、PA、CSA、ZR、etc .

Volume 16 Issue 1
Mar 2005
Turn off MathJax
Article Contents
Guifang Yang, Hongxia Peng, Changsheng Huang, Hongfu Yin, Chang'an Li. Climatic Instability Study of Lanzhou since Last Glacial Maximum. Journal of Earth Science, 2005, 16(1): 11-15.
Citation: Guifang Yang, Hongxia Peng, Changsheng Huang, Hongfu Yin, Chang'an Li. Climatic Instability Study of Lanzhou since Last Glacial Maximum. Journal of Earth Science, 2005, 16(1): 11-15.

Climatic Instability Study of Lanzhou since Last Glacial Maximum

Funds:

the CUGQNL0324 and National Natural Science Foundation of China 49972057

  • Received Date: 27 Jun 2004
  • Accepted Date: 20 Dec 2004
  • Organic carbon isotopes, CaCO3 content, coupled with carbonate carbon and oxygen isotopes are presented for identifying the climatic instability of Lanzhou from the Last Glacial Maximum (LGM). A wavelet analysis of these indices was conducted in the Hongzuisi Section, Lanzhou area. The results indicate that some important variations dominated by global factors occurred in 11.5, 13.9, and 15.1 kaB.P. respectively. In addition, several abrupt oscillations on different time scales during the Holocene can be revealed, indicating the complexity of the climatic system. Although the mechanism of these events has not been interpreted successfully, wavelet analysis can offer a valuable mathematic tool for a detailed analysis and greater understanding of climatic instability, thus providing a useful basis for the research of abrupt events.

     

  • loading
  • Abed, A. M., Yaghan, R., 2000. On the Paleoclimate of Jardon during Last Glacial Maximum. Palaeogeography, Palaeoclimatology, Palaeoecology, 160: 23-33 doi: 10.1016/S0031-0182(00)00042-0
    Aver, B. W., Bascomb, C. I., 1974. Soil Survey Laboratory Methods. Soil Survey Technology Monog, (6): 83
    Bianchi, G.G., McCave, N., 1999. Holocene Periodicity in North Atlantic Climate and Deep-Ocean Flow South of Iceland. Nature, 397: 515-517 doi: 10.1038/17362
    Bond, G., Broecker, W., Johnsen, S., et al., 1993. Correlations between Climate Records from North Atlantic Sediments and Greenland Ice. Nature, 365: 143-147 doi: 10.1038/365143a0
    Chondrogianni, C., Ariztegui, D., Rolph, T., et al., 2004. Millennial to Interannual Climate Variability in the Mediterranean during the Last Glacial Maximum. Quaternary International, 122: 31-41 doi: 10.1016/j.quaint.2004.01.029
    Chui, C. K., 1992. An Introduction to Wavelets, Vol. 1 of Wavelet Analysis and Its Applications. Academic Press, Boson
    Dansgaard, W., Johnsen, S., Clausen, H. B., et al., 1993. Evidence for General Instability of Past Climate from a 250-kyr Ice-Core Record. Nature, 364: 218-220 doi: 10.1038/364218a0
    Fang, X. M., Dai, X. R., Li, J. J., et al., 1996. Rapid Changes and Instability in the Evolution of the Asian Monsoon. Science in China(Series D), 26: 154-160
    Grootes, P. M., Stuiver, M., White, J. W. C., et al., 1993. Comparison of Oxygen Isotope Records from the GISP2 and GRIP Greenland Ice Cores. Nature, 366: 552-554 doi: 10.1038/366552a0
    Heinrich, H., 1988. Origin and Consequences of Cyclic Ice Rafting in the Northeast Atlantic Ocean during the Past 130000 Years. Quaternary Research, 29: 142-152 doi: 10.1016/0033-5894(88)90057-9
    Heusser, L., Heusser, C., Kleczkowski, A., et al., 1999. A 50000-yr Pollen Record from Chine of South American Millennial-Scale Climate Instability during the Last Glaciation. Quaternary Research, 52: 154-158 doi: 10.1006/qres.1999.2069
    Hulton, N. R. J., Purves, R. S., McCulloch, R. D., et al., 2002. The Last Glacial Maximum and Glaciation in Southern South America. Quaternary Science Reviews, 21: 233-241 doi: 10.1016/S0277-3791(01)00103-2
    Jacob, J., Disnar, J., Boussafir, M., et al., 2004. Major Environmental Changes Records by Lacustrine Sedimentary Organic Matter since the Last Maximum near the Equator. Palaeogeography, Palaeoclimatology, Palaeoecology, 205: 183-197 doi: 10.1016/j.palaeo.2003.12.005
    Li, C. Y., Wang, X. B., Shao, B., et al., 1995. Research Method of Carbon and Oxygen Isotopic Composition of Carbonate in Loess Sediment. Acta Sedimentologica Sinica, 13(1): 69-74(in Chinese with English Abstract)
    Mayle, F. E., Cwynar, L. C., 1995. Impact of Younger Dryas Cooling Event upon Lowland Vegetation of Maritime Canada. Ecological Monographs, 65: 129-154 doi: 10.2307/2937135
    Morlet, J., Arens, E., Fourgeau, E., et al., 1982. Wave Propagation and Sampling Theory. Geophysics, 47(2): 203-236 doi: 10.1190/1.1441328
    Ogden, R. T., 1997. Essential Wavelets for Statistical Applications and Data Analysis. Birkhäuser, Boston
    O'Brien, S. R., Mayewski, P. A., Meeker, L. D., et al., 1995. Complexity of Holocene Climate as Reconstructed from a Greenland Ice Core. Science, 270: 1962-1964 doi: 10.1126/science.270.5244.1962
    Qin, Q. Q., Yang, Z. K., 1994. Practical Wavelet Analysis. Xidian University Publishing House, Xi'an(in Chinese)
    Qin, Y. S., Li, T. G., Cang, S. X., 2000. Abrupt Changes in Earth's Climate System since Last Interglacial. Advance in Earth Sciences, 15(3): 243 -250(in Chinese with English Abstract)
    Shi, Y. F., 1995. The Chinese Holocene. Science Press, Beijing. 257(in Chinese)
    Street-Perrott, F. A., Marchhand, D. S., Roberts, N., et al., 1989. Global Lake-Level Variations from 18000 to 0 Years Ago: A Palaeoclimatic Analysis. US DOE/ER/60304-H1 TR-046, US Department of Energy, Technical Report. 1-120
    Yang, G. F., Yin, H. F., Li, C. A., 2003. Functional Spectral Analysis of Paleoclimatic Evolution in Lanzhou Area over the Last 15 ka. Chinese Journal of Geochemistry, 22(3): 377-380
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(2)  / Tables(1)

    Article Metrics

    Article views(319) PDF downloads(47) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return