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气象:2016,42(10):1278-1282
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2016年春季我国主要气候特征及其成因分析
(1.国家气候中心,中国气象局气候研究开放实验室,北京 100081;2.国家气象信息中心,北京 100081)
Main Characteristics and Possible Causes for the Climate in China During the Spring of 2016
(1.Laboratory of Climate Studies, National Climate Centre, CMA, Beijing 100081;2.National Meteorological Information Centre, Beijing 100081)
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投稿时间:2016-08-25    修订日期:2016-09-29
中文摘要: 2016年春季,全国平均气温11.6℃,为1961年以来历史同期第二高值,仅次于2008年(11.8 ℃);全国平均降水量174.9 mm,较常年同期偏多21.7%,为1951年以来同期第三高值,仅次于1952年(187.1 mm)及1973年(179.1 mm)。季内主要发生极端日降温及极端日降水量事件。进一步分析发现,受欧亚大陆中高纬地区“+-+”斜压波列影响,我国西北地区受高空槽控制,而东北地区则处于低层辐合、高空辐散的形势,利于上述地区降水偏多。此外,受到厄尔尼诺影响,印度洋—西太平洋地区盛行反气旋异常环流,将大量水汽输送到我国南方地区,有利于南方地区降水偏多。
Abstract:In the spring of 2016, the mean temperature of China was above normal, being the second highest in the historical record. The average precipitation amount was also above normal, recorded as the third highest in history. With the influence of the “positive negative positive” baroclinic wavetrain in the mid high latitude of Euro Asia Continent, the northwest of China was controlled by the upper trough, while the northeast was dominated by the circulation of low level convergence and high level divergence, which is in favor of more precipitation in these two regions. Moreover, under the influence of El Ni〖AKn~D〗o, the anticyclone anomalous circulation prevailed in the Indian West Pacific Ocean, bringing plenty of water vapor to the Southern China, and leading to more precipitation there.
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基金项目:国家重点基础研究发展计划(973计划)(2013CB430202)资助
引用文本:
邵勰,柳艳菊,孙丞虎,李多,2016.2016年春季我国主要气候特征及其成因分析[J].气象,42(10):1278-1282.
SHAO Xie,LIU Yanju,SUN Chenghu,LI Duo,2016.Main Characteristics and Possible Causes for the Climate in China During the Spring of 2016[J].Meteor Mon,42(10):1278-1282.