季风降雨前后深圳地区地表通量差异分析  

Analysis of the Surface Flux Difference in Shenzhen Area before and after the Monsoon Rainfall

作　　者：卢超[1] 高瑞泉[1] 谭明艳[1] 杨红龙[1] 吴启星 LU Chao;GAO Rui-quan;TAN Ming-yan;YANG Hong-long;WU Qi-xing(Shenzhen National Climate Observatory,Shenzhen 518040)

机构地区：[1]深圳市国家气候观象台,广东深圳518040

出　　处：《广东气象》2024年第4期1-5,共5页Guangdong Meteorology

基　　金：广东省气象局科学技术研究项目(GRMC2021M18)。

摘　　要：为进一步认识夏季西南季风对深圳地区地表通量的影响,采用深圳气象梯度塔的辐射和涡动协方差系统观测资料,研究该地区季风强降水过程中地表通量的变化特征。结果显示:在季风降水期间和降水后,深圳地区近地面太阳辐射明显减弱,同时反照率减小。在降水期间,深圳地区地表感热和潜热通量均明显低于降水前和降水后,而且由碳汇转为碳源。In order to further understand the influence of Southwest Monsoon on surface flux in Shenzhen,the observed data of radiation from a meteorological gradient tower and a vortex covariance system were used to study the variation characteristics of surface flux in the process of heavy monsoon precipitation in this area.The results are shown as follows.During and after the monsoon precipitation,the solar radiation near the ground in Shenzhen weakened significantly and the albedo decreased.During the precipitation,the surface sensible and latent heat flux in Shenzhen were significantly lower(as a carbon source)than those before and after the precipitation(as a carbon sink).

关 键 词：天气学 地表通量 西南季风 地气交换 涡相关系统 气象梯度塔 深圳 

分 类 号：P44[天文地球—大气科学及气象学]