青藏高原地-气水热交换特征及影响研究综述  

New Progress in the Study of the Land-Atmosphere Interaction and Its Effect over the Tibetan Plateau

作　　者：范广洲[1] 吕世华[1] 华维[1] 朱克云[1] 张永莉[1] 赖欣[1] Fan Guangzhou;Lyu Shihua;Hua Wei;Zhu Keyun;Zhang Yongli;Lai Xin(School of atmospheric sciences of Chengdu University of Information and Technology/Sichuan Key Laboratory ofPlateau Atmosphere and Environment/Joint Laboratory of Climate and Environment Change,Chengdu 610225)

机构地区：[1]高原大气与环境四川省重点实验室/气候与环境变化联合实验室,成都信息工程大学大气科学学院,成都610225

出　　处：《气象科技进展》2021年第4期64-71,共8页Advances in Meteorological Science and Technology

基　　金：国家自然科学基金项目(42075019,42075081);国家重点研发计划(2018YFC1505702);第二次青藏高原综合科学考察研究项目(2019QZKK010203)。

摘　　要：简要回顾了国内外青藏高原地—气相互作用的科学考察和研究进展,详细总结了近年来高原地—气水热平衡和交换的特征,及其对高原低涡、降水和东亚季风的影响研究。青藏高原地气水热交换可通过边界层过程导致高原热力作用改变,同时还能通过影响高原低涡,引起降水非绝热加热释放导致高原热力作用乃至海陆热力差异异常从而影响东亚夏季风气候。研究发现冷空气事件、土壤湿度和地表潜热对边界层厚度有重要影响;高原土壤温、湿度对低值系统的影响存在差异,高原涡频数与地温间存在显著正相关,但土壤湿度与高原涡间无显著相关关系;高原热状况与高原涡频数间也存在显著的正相关关系;对高原低值系统降水分析发现高原涡降水量呈逐年上升趋势,且波动剧烈呈多峰多谷变化;季风边缘区夏季降水与高原西部加热呈显著正关系,而与高原东部加热作用相关性并不显著;夏季风北部边缘区面积变化与高原中部和北部加热显著相关。研究结果进一步加深了对青藏高原气候学效应的理解。This paper briefly reviews the scientific investigation and research progress of the earth air interaction in the Tibetan Plateau(TP)at home and abroad,and summarizes in detail the characteristics of the earth air water heat balance and exchange over the Tibetan Plateau in recent years,as well as its influence on the plateau vortex and the East Asian monsoon.The surface water-energy exchange over the TP can change the thermal process of the TP through changing the boundary layer.Meanwhile,it also influence the plateau vortex of the TP and cause the release of precipitation non-adiabatic heating,resulting in the thermal process of the TP and even the anomalous of thermal difference between East Asia and Pacific,and finally influencing the East Asian summer monsoon.It is found that cold air events,soil moisture and surface latent heat have important effects on the boundary layer thickness.The influence of soil temperature and humidity on the low-value system is different.There is a significant positive correlation between the frequency of TP vortex and ground temperature,but there is no significant correlation between soil moisture and TP vortex.There is also a significant positive correlation between the TP thermal condition and the TP vortex frequency.According to the analysis of precipitation in the low value system over the TP,the vorticity precipitation over the TP increased year by year and fluctuated sharply with multi-peak and multi-valley changes.The summer precipitation in the monsoon margin has a significant positive relationship with the heating in the western TP,but not with the heating in the eastern TP.The area variation of the northern margin of the summer.The results further deepen the understanding of the climatic effects of the TP.

关 键 词：青藏高原 地气水热交换 高原低涡 东亚夏季风 

分 类 号：P461[天文地球—大气科学及气象学]