违反了 PRIMARY KEY 约束 'PK_t_counter'。不能在对象 'dbo.t_counter' 中插入重复键。 语句已终止。 暖季极端降水与温度的关系研究——以安徽省为例-Relationship between Precipitation Extremes with Temperature in the Warm Season in Anhui Province
doi:  10.3878/j.issn.1006-9585.2017.17009
暖季极端降水与温度的关系研究——以安徽省为例

Relationship between Precipitation Extremes with Temperature in the Warm Season in Anhui Province
摘要点击 296  全文点击 260  投稿时间:2017-01-11  修订日期:2017-04-27
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基金:  国家重点研发计划2016YFA0600701,国家自然科学基金41575071。
中文关键词:  极端降水  温度  Clausius-Clapeyron变率  气候变化
英文关键词:  Precipitation extreme  Temperature  Clausius-Clapeyron scaling rate  Climate change
           
作者中文名作者英文名单位
黄丹青HUANG Danqing中国气象局—南京大学气候预测研究联合实验室, 南京大学大气科学学院, 南京 210023
严佩文YAN Peiwen中国气象局—南京大学气候预测研究联合实验室, 南京大学大气科学学院, 南京 210023
刘高平LIU Gaoping安徽省气象台, 合肥 230031
朱坚ZHU Jian河海大学水文水资源学院, 南京 210098
引用:黄丹青,严佩文,刘高平,朱坚.2017.暖季极端降水与温度的关系研究——以安徽省为例[J].气候与环境研究,22(5):623-632,doi:10.3878/j.issn.1006-9585.2017.17009.
Citation:HUANG Danqing,YAN Peiwen,LIU Gaoping,ZHU Jian.2017.Relationship between Precipitation Extremes with Temperature in the Warm Season in Anhui Province[J].Climatic and Environmental Research(in Chinese),22(5):623-632,doi:10.3878/j.issn.1006-9585.2017.17009.
中文摘要:
      围绕1998~2014年间安徽省极端降水事件,展开了不同时间尺度暖季极端降水与温度的关系研究。结果表明,从年际尺度上看,极端降水强度和极端降水频数与气温和温度日较差的相关关系呈现南负北正的反向特征,尤以北部的正相关最显著。定量结果表明,安徽省区域平均的暖季极端降水频数和极端降水量对升温的变化百分率分别为13.7%/℃和0.03%/℃。从日(小时)尺度上看,气温低于25 ℃时,随着气温的升高极端降水量增加,且基本遵循一倍(二倍)的Clausius-Clapeyron变率。但在气温高于25 ℃时,随着温度的升高,日和小时极端降水量出现不同程度的下降,尤以前者减少的最显著。进一步比较不同小时尺度极端降水与气温关系发现,随着时间尺度的增长,气温增长后极端降水量下降的关系变得尤为明显。这可能与单日内极端降水在偏高温时以短时降水为主有关。
Abstract:
      The relation between precipitation extremes (PEs) and temperature in Anhui Province on different time scales during 1998-2014 has been investigated. On the interannual scale, the relationship between the magnitude of PEs and temperature presents a south-north dipole pattern with positive (negative) correlation over northern (southern) Anhui. Similar results are detected in the relation between the frequency of PEs and temperature. The quantitative results show that the frequency (magnitude) of PEs over Anhui decreased (enhanced) by 13.7%/℃ (0.03%/℃) with the temperature change. This suggests that the frequency of PEs is more sensitive to temperature change. On the daily and hourly scales, the extreme precipitation increased with increasing temperature. Daily extreme precipitation exponentially increase with temperature at the Clausius-Clapeyron (C-C) scaling rate. A super-CC scaling rate exists for hourly extremes, with increases in extreme precipitation observed at the rate about double the CC scaling rate for temperature. More importantly, both the daily and hourly extreme precipitation are found to decrease at the higher end of local temperature variations. Furthermore, the relation between PEs and temperature has been examined at scales of different hours. With increases in the time scale, the decrease becomes more significant. This may be related with the fact that the PEs in one day may be dominated by short duration PEs at higher temperature.
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