热带气象学报2017，Vol.33Issue(6)：822-830,9.DOI:10.16032/j.issn.1004-4965.2017.06.003
中国东部陆海表面温差对夏季水汽输送及降水空间分布的影响
THE INFLUENCE OF LAND AND SEA SURFACE TEMPERATURE DIFFERENCE ON WATER VAPOR TRANSPORT AND PRECIPITATION SPATIAL DISTRIBUTION IN SUMMER OF EAST CHINA
摘要
Abstract
Using 1981-2010 ERA Interim analysis and 30 years of daily rainfall data in the region of China,this study,with correlation calculation method,studied the correlation of the temperature difference between land surface and ocean surface (TD) with column vapor transport flux and East Asia areas of high temperature response.The results showed that the TD and precipitation in the summer months have two high correction areas,one in the Northwest and North China and the other in the South China and south of the Yangtze River,and it is always in a significant state in the years of 1981-2010.In summer,TD has been present from the 1990s up to now with increasing trends.Large differences exist in anomalously low and high vapor transport flux anomaly,and in the years of large differences,vapor mainly comes from two converging flows,from the northeast China to the south and from the eastern ocean to the west,and in the years of small differences,vapor transport flux anomaly comes from the ocean east off China to the middle and eastern China before flowing towards the north and south respectively.In summer,TD and vapor transport flux show a negative phase related area,and that vapor transport flux and East Asia temperature have two negative phase related areas.This proves that the larger TD,the greater the column vapor transport flux in the meridional direction,and the bigger the temperature with two high correction areas.A "high-strong-high" temperature-vapor flux-temperature response to each other is formed.The correlation between sea surface temperature difference in summer and temperature along the coast's surface is obvious.The water vapor transport in summer can be predicted to some degree by surface temperature along the coast in spring.关键词
陆海表面温差/相关关系/整层水汽通量/“高-强-高”响应现象Key words
land and sea surface temperature difference/correlation relationship/column vapor transport flux/"high-strength-high" response mechanism分类
天文与地球科学引用本文复制引用
赵阳,王宇虹,黄武斌,黄玉霞,秦旻华..中国东部陆海表面温差对夏季水汽输送及降水空间分布的影响[J].热带气象学报,2017,33(6):822-830,9.基金项目
江苏省研究生培养创新计划(KYCX17_0869) （KYCX17_0869）
甘肃省气象局重点项目GSMAZd2017-06 （）
中国气象局预报预测核心业务发展专项(CMAHX20160214) （CMAHX20160214）
江苏省研究生创新培养计划(1344051701002) （1344051701002）
甘肃省气象局关键技术攻关创新团队项目(GSQXCXTD-2017-01)共同资助 （GSQXCXTD-2017-01）
