Abstract
There were a series of severe floods along the middle to lower reaches of the Yangtze River (Changjiang River) in China during the 1990s. The extensive summer (June, July and August) precipitation is mostly responsible for the flooding. The summer rainfall in the 1980s and the 1990s is much higher than that in the previous 3 decades. The means for 1990–1999 is +87.62 mm above normal, marked the 1990s the wettest decade since the 1950s. Six stations with a time span of 1880–1999 are selected to establish century-long rainfall series. This series also shows that the 1990s is the wettest decade during the last 120 years. In the wettest 12 years, four occurred in the 1990s (1991, 1996, 1998 and 1999). Both global and China’s temperature show there is a relative lower air temperature during the 1960–1970s, and a rapid warming in the 1980–1990s. Comparisons of rainfall between 1960–1979 and 1980–1999 show there are dramatic changes. In the cold period 1960–1979, the summer rainfall along the Yangtze River is 3.8 % to 4.7 % below the normal, during the warm period 1980–1999, over 8.4 % to 18.2 % of summer rainfall occurs. Over the whole eastern China, the summer rainfall shows opposite spatial patterns from the 1960–1970s to 1980–1990s. The consistent trend toward more rainfall with global warming is also presented by the greenhouse scenario modeling. A millennial Drought/flood Index for the middle to lower reaches of the Yangtze River showed that although the surplus summer rainfall in the 1990s is the severest during the past 150 years, it is not outstanding in the context of past millennium. Power spectra of the Drought/flood Index show significant interdecadal periods at 33.3 and 11.8 years. Thus, both the natural interdecadal variations and the global warming may play important roles in the frequent floods witnessed during the last two decades.
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References
Huang C Y. Some statistical characteristics of drought and flood damages over the Changjiang River. In: Wang and Huang. Diagnostic Studies on the Damages of Droughts and Roods of the Changjiang and Huanghe Rivers, and Their Economic Impact. Beijing: China Meteorological Press, 1993. 76–82.
NCC/CAM (National Climate Center, China Meteorological Administration). The Severe Flooding over China in the Summer of 1998 and Climate Anomalies. Beijing: China Meteorological Press, 1998. 139.
Gong D Y, Wang S W. Severe summer rainfall in China associated with the enhanced global warming.Climate Research, 2000, 16(1):51–59.
Wang S W, Gong D Y, Ye J Let al. Seasonal precipitation series over China since 1880.Acta Geographica Sinica, 2000,55 (3): 281–293.
Nicholl N, Gruza G V, Jouzel Jet al. Observed climate variability and change. In: Houghton J T, Meiro Filho L G, Callendar B Aet al. Climate Change 1995: the Science of Climate Change. Cambridge, UK: Cambridge University Press, 1996. 133–192.
Hulme M, Wigley T, Jiang Tet al. Greenhouse effect induced climate change and its impact on China. CRU/ WWF/ SMA, 1992. 57.
Hulme M, Zhao Z C, Jiang T. Recent and future climate change in East Asia.International Journal of Climatology, 1994, 14: 637–658.
Hulme M, Osborn T J, Johns T C. Precipitation sensitivity to global warming: comparison of observations with HadCM2 simulations.Geophysical Research Letters, 1998, 25(17): 3379–3382.
Karl T R, Knight R W, Plummer N. Indices of climate change for the United States.Bulletin of American Meteorological Society, 1995, 78: 279–292.
Karl T R, Knight R W. Secular trends of precipitation amount, frequency and intensity in the United States.Bulletin of American Meteorological Society, 1998, 79: 233–241.
Yu B, Neil D T. Global wanning and regional rainfall: the difference between average and high intensity rainfalls.International journal of Climatology, 1991,11: 653–661.
Gong D Y. Global warming and the summer flooding risk in China.Journal of Natural Disaster, 1999, 8(3): 30–37.
Gong D Y, Wang S W. Surplus summer rainfall along the middle to lower reaches of the Changjiang River in 1990s.Acta Geographica Sinica, 2000, 55(5): 567–575.
Zhai P M, Ren F M, Zhang Q. Detection of trends in China’s precipitation extremes.Acta Meteorologica Sinica, 1999, 57(2): 208–216.
Yatagai A, Yasunari T. Trends and decadal-scale fluctuations of surface temperature and precipitation over China and Mongolia during the recent 40 year period (1951–1990).Journal of Meteorological Society of Japan, 1994, 72(6): 937–957.
Kumar K K, Rajagopalan B, Cane M A. On the weakening relationship between the Indian monsoon and ENSO.Science, 1999,284: 2156–2159.
Jones P D. Hemispheric surface air temperature variations: a reanalysis and an update to 1993.Journal of Climate, 1994, 7: 1794–1802.
Hu Z Z. Interdecadal variability of summer climate over East Asia and its association with 500 hPa height and global sea surface temperature.Journal of Geophysical Research-Atmosphere, 1997, 102(D16): 19403–19412.
Nitta T, Hu Z Z. Summer climate variability in China and its association with 500 hPa height and tropical convection.Journal of Meteorological Society of Japan, 1996, 74(4):425–445.
IPCC-DDC. Modeling results under different scenarios are available at http://ipcc-ddc.cru.uea.ac.uk[OL]
Li X D, Zhao Z C, Wang S Wet al. Evaluation of CGCM and simulation of regional climate change in East Asia.Acta Meteorologica Sinica, 1995, 9(4): 385–401.
Wang S W, Zhao Z C. Droughts and floods in China, 1470–1979. In: TNL Wigley et al. Climate and History. Cambridge University Press, 1981. 271–288.
NMA (Chinese National Meteorological Administration), Peking University, Institute of Meteorological Science. Atlas of Drought and Floods in China during the last 500-year Period. Beijing: China Cartographic Publishing House, 1981. 332.
Wang S W, Zhao Z C, Chen Z H. Drought/flood pattern chronology for AD950-1991. In: Wang S W. Drought/flood Disasters in Changjiang and Huanghe River Region and Impact on the Economy. Beijing: Meteorological Press, 1993. 55–66.
Wang S W, Chen Z H. Preliminary study of severe floods and droughts of the Changjiang and Huanghe River during the last two millennia. In: Wang S W. Drought/flood Disasters in Changjiang and Huanghe River Region and Impact on the Economy. Beijing: Meteorological Press, 1993. 67–75.
Wang S W. Analysis of climate fluctuations of Shanghai.Acta Meteorologica Sinica, 1976, (32): 321–336.
Wang S W, Zhao Z C. The 36-year wetness oscillation in China and its mechanism.Acta Meteorologica Sinica, 1979, 37(1): 64–73.
Liang X Z, Samel A N, Wang W C. Observed and GCM simulated decadal variability of monsoon rainfall in East China.Climate Dynamics, 1995, 11(2): 103–114.
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Dao-yi, G., Jin-hong, Z. & Shao-wu, W. Flooding 1990s along the Yangtze River, has it concern of global warming?. J. Geogr. Sci. 11, 43–52 (2001). https://doi.org/10.1007/BF02837375
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DOI: https://doi.org/10.1007/BF02837375