首页 | 本学科首页   官方微博 | 高级检索  
     

全球变暖趋缓背景下辽宁夏季降水变化及水汽输送特征
引用本文:常姝婷,白雪,曲梓祎,温舟,徐玉秀,高铭,张翠艳. 全球变暖趋缓背景下辽宁夏季降水变化及水汽输送特征[J]. 气象与环境学报, 2021, 37(3): 57-64. DOI: 10.3969/j.issn.1673-503X.2021.03.008
作者姓名:常姝婷  白雪  曲梓祎  温舟  徐玉秀  高铭  张翠艳
作者单位:锦州市气象局,辽宁 锦州121000
基金项目:国家重点研发计划项目(2018YFC1507305);中国气象局预报员专项(CMAYBY2019-024);辽宁省气象局重点科研项目(201802)
摘    要:利用中国气象数据网提供的中国地面气候资料日值数据集(V3.0)中的降水数据以及ERA-Interim逐月再分析资料对全球变暖趋缓背景下(1998年后)辽宁夏季降水变化特征及水汽输送对其的影响进行研究.结果表明:全球增暖减缓背景下,辽宁夏季降水量存在一定的增加趋势,但趋势较弱,其中辽宁南部降水的增加趋势较其他地区显著,对...

关 键 词:年际变化  纬向水汽输送  经向水汽输送
收稿时间:2019-12-29

Analysis of precipitation variation and water vapor flux characteristics in summer under the background of global warming in Liaoning province
Shu-ting CHANG,Xue BAI,Zi-yi QU,Zhou WEN,Yu-xiu XU,Ming GAO,Cui-yan ZHANG. Analysis of precipitation variation and water vapor flux characteristics in summer under the background of global warming in Liaoning province[J]. Journal of Meteorology and Environment, 2021, 37(3): 57-64. DOI: 10.3969/j.issn.1673-503X.2021.03.008
Authors:Shu-ting CHANG  Xue BAI  Zi-yi QU  Zhou WEN  Yu-xiu XU  Ming GAO  Cui-yan ZHANG
Affiliation:Jinzhou Meteorological Service, Jinzhou 121000, China
Abstract:Based on the precipitation data from the daily surface climate data set (V3.0) provided by China Meteorological Data Network and the monthly reanalysis data from ERA (European centre for medium-range weather forecasts Re-Analysis) Interim, the characteristics of summer precipitation and the influence of water vapor transport over Liaoning province under the background of global warming since 1999 were studied.The results show that under the background of slowing down of global warming, the summer precipitation in Liaoning province has a certain increasing trend, but the trend is weak.The increasing trend of precipitation in the southern part of Liaoning province is more significant than that in other regions, which contributes a high degree to the overall precipitation change in Liaoning province.There is a high positive correlation between water vapor flux and precipitation over the northern and southern border of Liaoning province in summer.The southern boundary has the most significant correlation.The contribution of meridional water vapor flux to precipitation is higher than that of zonal water vapor flux, and the high-value area is mainly located in the lower troposphere of eastern and southern Liaoning province, which has an impact on local precipitation.The meridional water vapor flux in the troposphere of southern Liaoning province has a significantly positive correlation with precipitation in Liaoning province.Based on the analysis of the influence of atmospheric circulation background field on the water vapor flux the northward movement of western Pacific subtropical high ridge is an important factor causing the increase of water vapor flux in Liaoning province which directly affects precipitation variation and results in an increasing trend of precipitation in summer in Liaoning province under the background of global warming.
Keywords:Interannual variability  Zonal water vapor flux  Meridional water vapor flux  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《气象与环境学报》浏览原始摘要信息
点击此处可从《气象与环境学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号