| A STUDY ON THE RECONSTRUCTION OF THE EIGHTEENTH CENTURY MEIYU (PLUM RAINS) ACTIVITY OF LOWER CHANGJIANG(YANGTZE) REGION OF CHINA |
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| 作者姓名： | 张德二 王宝贯 |
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| 作者单位： | Academy of Meteorological Science，State Meteorological Administration，Beijing 100081，PRC，Department of Meteorology，University of Wisconsin，Madison，WI 53706，USA |
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| 基金项目： | This work was performed under the partial support of the U.S. National Science Foundation grant ATM-8511905. It is part of U.S.-PRC cooperative research project on historical climate. The latter part of this study was also partially supported by Xi'an Lo |
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| 摘 要： | This study presents a scheme for delimiting the meiyu period in the Lower Changjiang (Yangtze) region. This scheme was applied to the Clear and Rain Records of Nanjing, Suzhou and Hangzhou to reconstruct the 1723-1800 meiyu climate series. The beginning and ending dates, length, precipitation, and the intensity grades of meiyu were determined. The years of early, heavy, light, and empty meiyu were also given. Statistical analyses of the 18th century meiyu series indicate the existence of the quasi-periodicities of 2-3, 4-5, and 9 years. Many basic characteristics of the modern meiyu also existed in the 18th century. Some characteristics of the Northwest Pacific Subtropical High in the 18th century in typical meiyu years were inferred from the historical meiyu series.
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A STUDY ON THE RECONSTRUCTION OF THE EIGHTEENTH CENTURY MEIYU (PLUM RAINS) ACTIVITY OF LOWER CHANGJIANG(YANGTZE) REGION OF CHINA |
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| ZHANG DE-ER.A STUDY ON THE RECONSTRUCTION OF THE EIGHTEENTH CENTURY MEIYU (PLUM RAINS) ACTIVITY OF LOWER CHANGJIANG(YANGTZE) REGION OF CHINA[J].Science in China(Chemistry),1991(10). |
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| Authors: | ZHANG DE-ER |
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| Abstract: | This study presents a scheme for delimiting the meiyu period in the Lower Changjiang (Yangtze) region. This scheme was applied to the Clear and Rain Records of Nanjing, Suzhou and Hangzhou to reconstruct the 1723-1800 meiyu climate series. The beginning and ending dates, length, precipitation, and the intensity grades of meiyu were determined. The years of early, heavy, light, and empty meiyu were also given. Statistical analyses of the 18th century meiyu series indicate the existence of the quasi-periodicities of 2-3, 4-5, and 9 years. Many basic characteristics of the modern meiyu also existed in the 18th century. Some characteristics of the Northwest Pacific Subtropical High in the 18th century in typical meiyu years were inferred from the historical meiyu series. |
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| Keywords: | meiyu (plum rains) series Lower Changjiang (Yangtze) region eighteenth century climatic characteristics reconstruction |
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