SPATIO-TEMPORAL VARIATION OF SENSIBLE HEAT FLUX OVER SOUTHERN CHINA  

作　　者：李玉梅 彭玉麟 简茂球 曾沁 

机构地区：[1]Center for Monsoon and Environment Research, School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou 510275 China [2]Hainan Meteorological Observatory, Haikou 570203 China [3]Guangdong Meteorological Observatory, Guangzhou 510275 China

出　　处：《Journal of Tropical Meteorology》2016年第3期393-401,共9页热带气象学报（英文版）

基　　金：National Key Basic Research Program of China(2014CB953901);Program of National Science Foundation of China(41475049,40975030);Jiangsu Collaborative Innovation Center for Climate Change;Fundamental Research Funds for the Central Universities(161gjc05)

摘　　要：The spatio-temporal variation of surface sensible heat flux(SHF) in southern China(SC) is studied based on the data evaluated from conventional observational meteorological data.There exist prominent increasing trends in all seasonal surface sensible heat fluxes in the western SC and decreasing trends in the central-eastern part of southern China.The variations of surface sensible heat flux in all seasons are dominant on interannual time-scales.The land-air temperature difference and the near-surface wind speed are two key factors for the interannual variations of SHF,but the former is more important.The first two major anomalous patterns of SHF are presented as the region-wide in-phase anomalies and the east-west dipole anomalies,respectively,based on the EOF analysis results.The spatio-temporal variation of surface sensible heat flux （SHF） in southern China （SC） is studied based on the data evaluated from conventional observational meteorological data. There exist prominent increasing trends in all seasonal surface sensible heat fluxes in the western SC and decreasing trends in the central-eastern part of southern China. The variations of surface sensible heat flux in all seasons are dominant on interannual time-scales. The land-air temperature difference and the near-surface wind speed are two key factors for the interannual variations of SHF, but the former is more important. The first two major anomalous patterns of SHF are presented as the region-wide in-phase anomalies and the east-west dipole anomalies, respectively, based on the EOF analysis results.

关 键 词：sensible HEAT FLUX estimation linear TREND INTERANNUAL VARIATION 

分 类 号：P461.3[天文地球—大气科学及气象学]