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Volume 30 Issue 2

Mar.  2013

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 2013 >  30(2): 461-467

Changes in the Diurnal Cycles of Precipitation over Eastern China in the Past 40 Years

  • 1.

    State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmos;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, Dali National Climate Observatory, Yunnan 671003


doi: 10.1007/s00376-012-2092-x

  • This study analyzed the interdecadal changes in the diurnal variability of summer (June-August) precipitation over eastern China during the period 1966-2005 using hourly station rain gauge data. The results revealed that rainfall diurnal variations experienced significant interdecadal changes. Over the area to the south of the Yangtze River, as well as the area between the Yangtze and Yellow Rivers, the percentages of morning rainfall (0000-1200 LST) to total rainfall in terms of amount, frequency and intensity, all exhibited increasing interdecadal trends. On the contrary, over North China, decreasing trends were found. As a result, diurnal rainfall peaks also presented pronounced interdecadal variations. Over the area between the Yangtze and Yellow Rivers, there were 16 out of 46 stations with afternoon (1200-0000 LST) frequency peaks in the first 20 years of the 40-year period of study, while only eight remained in the latter 20 years. In North China, seven stations experienced the opposite changes, which accounted for about 21% of the total number of stations. The possible causes for the interdecadal changes in diurnal features were discussed. As the rainfall in the active monsoon period presents morning diurnal peaks, with afternoon peaks in the break period, the decrease (increase) of rainfall in the active monsoon period over North China (the area south of the Yangtze River and the area between the Yangtze and Yellow Rivers) may contribute to interdecadal changes in diurnal rainfall variability.
  • [1] Yue ZHANG, Wen Zhou, Ruhua Zhang, 2024: Decadal Changes in Dry and Wet Heatwaves in Eastern China: Spatial Patterns and Risk Assessment, ADVANCES IN ATMOSPHERIC SCIENCES.  doi: 10.1007/s00376-024-3261-4
    [2] He PAN, Guixing CHEN, 2019: Diurnal Variations of Precipitation over North China Regulated by the Mountain-plains Solenoid and Boundary-layer Inertial Oscillation, ADVANCES IN ATMOSPHERIC SCIENCES, , 863-884.  doi: 10.1007/s00376-019-8238-3
    [3] ZHANG Rong-Hua, WANG Zhanggui, 2013: Model Evidence for Interdecadal Pathway Changes in the Subtropics and Tropics of the South Pacific Ocean, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1-9.  doi: 10.1007/s00376-012-2048-1
    [4] Shunwu ZHOU, Yue MA, Xuyang GE, 2016: Impacts of the Diurnal Cycle of Solar Radiation on Spiral Rainbands, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 1085-1095.  doi: 10.1007/s00376-016-5229-5
    [5] ZHANG Huan, ZHAI Panmao, 2011: Temporal and Spatial Characteristics of Extreme Hourly Precipitation over Eastern China in the Warm Season, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1177-1183.  doi: 10.1007/s00376-011-0020-0
    [6] GE Xuyang, MA Yue, ZHOU Shunwu, Tim LI, 2014: Impacts of the Diurnal Cycle of Radiation on Tropical Cyclone Intensification and Structure, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 1377-1385.  doi: 10.1007/s00376-014-4060-0
    [7] Rudi XIA, Yali LUO, Da-Lin ZHANG, Mingxin LI, Xinghua BAO, Jisong SUN, 2021: On the Diurnal Cycle of Heavy Rainfall over the Sichuan Basin during 10–18 August 2020, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 2183-2200.  doi: 10.1007/s00376-021-1118-7
    [8] LI Yunying, YU Rucong, XU Youping, ZHOU Tianjun, 2005: AREM Simulations of Cloud Features over Eastern China in February 2001, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 260-270.  doi: 10.1007/BF02918515
    [9] Hemin SUN, Guojie WANG, Xiucang LI, Jing CHEN, Buda SU, Tong JIANG, 2017: Regional Frequency Analysis of Observed Sub-Daily Rainfall Maxima over Eastern China, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 209-225.  doi: 10.1007/s00376-016-6086-y
    [10] Yali ZHU, Tao WANG, Jiehua MA, 2016: Influence of Internal Decadal Variability on the Summer Rainfall in Eastern China as Simulated by CCSM4, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 706-714.  doi: 10.1007/s00376-016-5269-x
    [11] Chujie GAO, Gen LI, 2023: Enhanced Seasonal Predictability of Spring Soil Moisture over the Indo-China Peninsula for Eastern China Summer Precipitation under Non-ENSO Conditions, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 1632-1648.  doi: 10.1007/s00376-023-2361-x
    [12] Jingrui YAN, Wenjun Zhang, Suqiong HU, Feng JIANG, 2024: Different ENSO impacts on eastern China precipitation pattern in early and late winter associated with seasonally-varying Kuroshio anticyclonic anomalies, ADVANCES IN ATMOSPHERIC SCIENCES.  doi: 10.1007/s00376-023-3196-1
    [13] Xiang LI, Tiejun LING, Yunfei ZHANG, Qian ZHOU, 2018: A 31-year Global Diurnal Sea Surface Temperature Dataset Created by an Ocean Mixed-Layer Model, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 1443-1454.  doi: 10.1007/s00376-018-8016-7
    [14] Zhiyan ZUO, Renhe ZHANG, 2016: Influence of Soil Moisture in Eastern China on the East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 151-163.  doi: 10.1007/s00376-015-5024-8
    [15] SONG Yaoming, GUO Weidong, ZHANG Yaocun, 2009: Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 319-326.  doi: 10.1007/s00376-009-0319-2
    [16] CHEN Haoming, YUAN Weihua, LI Jian, YU Rucong, 2012: A Possible Cause for Different Diurnal Variations of Warm Season Rainfall as Shown in Station Observations and TRMM 3B42 Data over the Southeastern Tibetan Plateau, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 193-200.  doi: 10.1007/s00376-011-0218-1
    [17] WANG Geli, YANG Peicai, LIU Chuanxi, LIU Yi, LU Daren, 2010: Impacts of Future NOx and CO Emissions on Regional Chemistry and Climate over Eastern China, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 750-760.  doi: 10.1007/s00376-009-9101-8
    [18] BAO Ming, HAN Rongqing, 2009: Delayed Impacts of the El Nino Episodes in the Central Pacific on the Summertime Climate Anomalies of Eastern China in 2003 and 2007, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 553-563.  doi: 10.1007/s00376-009-0553-7
    [19] Yuhan LUO, Yu DU, 2023: The Roles of Low-level Jets in “21·7” Henan Extremely Persistent Heavy Rainfall Event, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 350-373.  doi: 10.1007/s00376-022-2026-1
    [20] SUN Bo, ZHU Yali, WANG Huijun, 2011: The Recent Interdecadal and Interannual Variation of Water Vapor Transport over Eastern China, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1039-1048.  doi: 10.1007/s00376-010-0093-1
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    • Manuscript History

    Manuscript received: 10 March 2013
    Manuscript revised: 10 March 2013
    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

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    Changes in the Diurnal Cycles of Precipitation over Eastern China in the Past 40 Years

    • 1. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmos;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, Dali National Climate Observatory, Yunnan 671003
    • Manuscript received: 2013-03-10
    • Manuscript revised: 2013-03-10

    Abstract: This study analyzed the interdecadal changes in the diurnal variability of summer (June-August) precipitation over eastern China during the period 1966-2005 using hourly station rain gauge data. The results revealed that rainfall diurnal variations experienced significant interdecadal changes. Over the area to the south of the Yangtze River, as well as the area between the Yangtze and Yellow Rivers, the percentages of morning rainfall (0000-1200 LST) to total rainfall in terms of amount, frequency and intensity, all exhibited increasing interdecadal trends. On the contrary, over North China, decreasing trends were found. As a result, diurnal rainfall peaks also presented pronounced interdecadal variations. Over the area between the Yangtze and Yellow Rivers, there were 16 out of 46 stations with afternoon (1200-0000 LST) frequency peaks in the first 20 years of the 40-year period of study, while only eight remained in the latter 20 years. In North China, seven stations experienced the opposite changes, which accounted for about 21% of the total number of stations. The possible causes for the interdecadal changes in diurnal features were discussed. As the rainfall in the active monsoon period presents morning diurnal peaks, with afternoon peaks in the break period, the decrease (increase) of rainfall in the active monsoon period over North China (the area south of the Yangtze River and the area between the Yangtze and Yellow Rivers) may contribute to interdecadal changes in diurnal rainfall variability.

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