主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2016, Vol. 32 ›› Issue (6): 174-178.doi: 10.3969/j.issn.1673-503X.2016.06.024

• 简报 • 上一篇    下一篇

辽宁省春播期第一场透雨特征及其与鄂霍次克海阻塞高压的关系

李菲, 赵春雨, 林蓉, 晁华   

  1. 沈阳区域气候中心, 辽宁 沈阳 110166
  • 收稿日期:2015-10-20 修回日期:2016-03-08 出版日期:2016-12-31 发布日期:2016-12-31
  • 作者简介:李菲,女,1982年生,工程师,主要从事短期气候预测研究,E-mail:lifei910@163.com。
  • 基金资助:
    中国气象局气候变化专项“近百年区域气候变化序列建立及不确定性评估”（CCSF201338）和公益性行业（气象）科研专项“近百年全球陆地气候变化监测技术与应用”（GYHY201206012）共同资助。

Characteristics of the first soaking rain in spring sowing season of Liaoning province and their relationships with Okhotsk blocking high

LI Fei, ZHAO Chun-yu, LIN Rong, CHAO Hua   

  1. Shenyang Regional Climate Center, Shenyang 110016, China
  • Received:2015-10-20 Revised:2016-03-08 Online:2016-12-31 Published:2016-12-31

PDF (PC)

346

被引次数

1

摘要： 利用1961-2013年4-5月辽宁省52个气象站逐日降水资料及NCEP/NCAR再分析资料，对辽宁省春播期第一场透雨特征进行了详细分析，并探讨了鄂霍次克海阻塞高压对辽宁省春播期第一场透雨的影响机制。结果表明：1961-2013年辽宁省春播期第一场透雨出现日期为4月17日至5月3日，平均出现日期为4月22日，辽宁省春播期第一场透雨出现的平均日期自东南向西北依次推后。鄂霍次克海阻塞高压是影响辽宁省春播期第一场透雨出现日期的主要环流系统，受鄂霍次克海阻塞高压的阻挡，冷空气在贝加尔湖附近堆积，在对流层低层鄂霍次克海阻塞高压激发了辽宁省北部地区的一个气旋式环流，水汽从孟加拉湾地区经中国中东部地区输送至辽宁地区，为辽宁地区春播期第一场透雨的出现提供了有利的必要条件。

关键词: 透雨, 鄂霍次克海阻塞高压, 贝加尔湖, 气旋

Abstract: Using daily precipitation data from 52 meteorological stations in Liaoning province and the NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis datasets in April and May from 1961 to 2013,characteristics of the first soaking rain in spring sowing season of Liaoning province were analyzed.The impacts of the Okhotsk blocking high on it were discussed.The results show that the first soaking rains in the spring sowing season of Liaoning province occur from April 17 to May 3,and the average date is April 22 during 1961 to 2013.The occurring dates of the first soaking rain in the spring sowing season successively postpone from the southeastern to northwestern parts.The Okhotsk blocking high is the main circulation system that affects when the first soaking rain in the spring sowing season occurs.Due to the obstructing by the Okhotsk blocking high,the cold air piles up in the Baikal Lake,and the Okhotsk blocking high stimulates a cyclonic circulation at the low layer of the troposphere.As a result,the water vapor that transports from the Bay of Bengal to Liaoning through the central and eastern parts of China provides a necessary condition for the occurrence of the first soaking rain in the spring sowing season of Liaoning province.

Key words: Soaking rain, Okhotsk blocking high, Baikal Lake, Cyclone

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