RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2019, Vol. 28 >> Issue (02): 469-482.doi: 10.11870/cjlyzyyhj201902023

Previous Articles     Next Articles

Impact of Two Types of ENSO Events on the Extreme Precipitation in Eastern China

LI Yan, MA Bai-sheng, YANG Xuan   

  1. (College of Atmosphere Science, Lanzhou University, Lanzhou 730000, China)
  • Online:2019-02-20 Published:2019-02-25

Abstract: Using the daily precipitation data in China and the IRESST global sea surface temperature data during 1979-2010, the effects of the Eastern-Pacific and Central-Pacific El Nio/La Nia events on the extreme precipitation and the general precipitation events in eastern China during the period from maturity to recession were studied to reveal the proportion of the extreme precipitation and general precipitation of the total influencing by the two kinds of ENSO events. The results show that, the extreme precipitation accounts for more than half of the total precipitation in winter, spring, and summer, which proportion is the biggest in winter and smallest in summer. Besides, the proportion that the extreme precipitation accounts for in the north of the Yangtze River is higher than that in the south of the Yangtze River. Furthermore, when the two types of ENSO occur, the spatial distribution characteristics of the extreme precipitation anomalies in eastern China are basically consistent with that of the total precipitation anomalies in the region. However, the features of the general precipitation anomalies in this area show a large difference from those of the total and extreme precipitation. The above shows that the two types of ENSO events affect the distribution feature of total precipitation anomalies in eastern China mainly through affecting the extreme precipitation anomalies. From the comparison of the two types of ENSO events, the effect of the Eastern-Pacific ENSO on the extreme precipitation in eastern China is significantly stronger than that of the Central-Pacific ENSO. In addition, under the influence of two types of ENSO events, the distribution characteristics of the extreme precipitation are also different. On this basis, the impact of the four strongest ENSO events during the period of 1979-2010 on the extreme precipitation in eastern China are analyzed. It turns out that the influence of the strongest ENSO events on the extreme precipitation is also much stronger than that of the general precipitation, and the anomalous distribution features of the extreme precipitation are basically consistent with the total precipitation anomalies. However, when the strongest ENSO events occur, the abnormal magnitude variation of the extreme precipitation and total precipitation in eastern China are greater than that of the general ENSO events.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] CHEN Yong,CHEN Guo-jie,YANG Ding-guo. DISTRIBUTION OF HUMAN SETTLEMENTS IN THE UPSTREAMMINJIANG RIVER AND THEIR ECOLOGICAL CHARACTERISTICS]——A CASE STUDY OF LIXIAN COUNTY[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2004, 13(1): 72 -77 .
[2] XIE Xiao-nan,XU Peng-zhu, QIN Bo-qiang. ANALYSIS ON PROBLEMS AND COUNTERMEASURES OFLANDSURFACE SUBSIDENCE IN TAILAKE BASIN[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(1): 125 -131 .
[3] ZHU Hongbo, ZHANG Anlu. ANALYSIS ON SPATIAL TEMPORAL DIFFERENCE IN ECOLOGICAL SECURITY OF CULTIVATED LAND RESOURCES IN CHINA[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2007, 16(6): 754 .
[4] CHEN Yong-Bai, Deng- Yun-| Liang-Rui-Feng-. IMPACT OF STOPLOG INTAKE WORKS ON RESERVOIR DISCHARGED WATER TEMPERATURE[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2010, 19(03): 340 .
[5] LIU Chun-Xia, LI Yue-Chen, YANG Hua. SENSITIVITY ASSESSMENT OF KARST ROCKY DESERTIFICATION IN THREE GORGES RESERVOIR AREA OF CHONGQING AND ITS SPATIAL DIFFERENTIATION CHARACTERISTICS [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2011, 20(3): 291 .
[6] PAN Wei1,2| WANG Meisu3, MAN Zhimin3, CUI Jianxin1,2. RECONSTRUCTION OF THE AFFECTING EAST CHINA TYPHOON FREQUENCY,1644~1911AD[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2012, 21(02): 237 .
[7] CHEN Wenjing| ZHANG Yanping, ZHAO Chunlai, WANG Changlai. SPECIES COMPOSITION AND BIODIVERSITY OF FISH COMMUNITY IN HUKOU SECTION OF THE YANGTZE RIVER [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2012, 21(06): 684 .
[8] CAO Zhihong1,2,CHEN Zhichao2 |HAO Jinmin3. ANALYSIS ON FOOD CONSUMPTION CHANGE TENDENCY OF CHINESE URBAN AND RURAL RESIDENTS[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2012, 21(10): 1173 .
[9] ZHANG Qun|ZHANG Wen|LI Feixue|ZHANG Lin|YANG Yunli|LI Manchun. EVALUATION OF LAND USE STRUCTURE BASED ON
INFORMATION ENTROPY AND DATA ENVELOPMENT ANALYSIS]——A CASE STUDY OF WUJIN COUNTY IN CHANGZHOU
[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2013, 22(8): 1149 .
[10] KE Xinli, YANG Baihan, LIU Shi, MA Caixue. OPTIMIZATION OF INTERREGIONAL BUILTUP LAND ALLOCATION BASED ON DIFFERENCES OF LAND USE EFFICIENCY-A CASE STUDY OF WUHAN METROPOLITAN[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2014, 23(11): 1502 .