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DRY/WET CLIMATE CHANGE SINCE 960 A.D.IN TAIHU DRAINAGE BASIN OF CHINA
作者姓名:WANG Zhang-hua  CHEN Zhong-yuan  KOU Ying  CHEN Yu
作者单位:Department of Geography,East China Normal University,Shanghai 200062,P. R. China
基金项目:Under the auspices of Youth Innovation Foundation of East China Normal University,China.
摘    要:IINTRODUCTION climate chang巳 divided d叮/wet penodS and discussed itsrelationships with cold/warm vanatlon and solar activityRecords ofellmate dlsasterhave been abundantly(CHEN198飞 1989).IOund In Chinese historical literature.Previous works The present study tends to establish the dry/wethave collected such records to study the historical elf-series since 960 A.D.ofTal…

收稿时间:8 October 2001

Dry/Wet climate change since 960 A. D. in taihu drainage basin of China
WANG Zhang-hua,CHEN Zhong-yuan,KOU Ying,CHEN Yu.DRY/WET CLIMATE CHANGE SINCE 960 A.D.IN TAIHU DRAINAGE BASIN OF CHINA[J].Chinese Geographical Science,2001,11(4):343-349.
Authors:Zhang-hua Wang  Zhong-yuan Chen  Ying Kou  Yu Chen
Institution:(1) Department of Geography, East China Normal University, 200062 Shanghai, P. R. China
Abstract:ABSTRACT: The present study reconstructs an annual dry/wet grade series from 960 A. D. to 1992 A. D. in the Tai-hu drainage basin of eastern coast, China by collecting historical climatic records, to examine the climate periodicity and climate jumps. Power Spectrum analysis reveals that the dry/wet climate in the study area was a superposed phenomenon with the major period of quasi-100-year, and several other notable periods. These periods were supposed to be closely linked with the celestial activity. Climate jumps are detected using moving t-test. The two abrupt changes around 1247 - 1263 A. D. and 1618 - 1635 A. D. are proved as regional events. The 14th to 15th century appeared as the wettest period during the last 1000 years in the Taihu drainage basin. These are interpreted as the consequence of east Asia climate change.
Keywords:climate periodicity  climate jump  annual dry/wet grade series  Taihu drainage basin
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