HUMAN-PERCEIVED TEMPERATURE
; SURFACE WIND-SPEED
; EXTREME TEMPERATURE
; MAINLAND CHINA
; CLIMATE-CHANGE
; EAST-ASIA
; PRECIPITATION
; TRENDS
WOS学科分类:
Meteorology & Atmospheric Sciences
WOS研究方向:
Meteorology & Atmospheric Sciences
英文摘要:
The apparent temperature (APT), or human-perceived temperature, is commonly defined as a function of the surface air temperature (SAT), vapour pressure (or humidity) and wind speed. This paper demonstrates that the APT over China, as revealed by daily station-observed data, has generally increased faster than the SAT during summertime in the past 50 years (1968-2017). The rate of increase in APT was significantly faster than that of SAT in 60.1% of stations, and the difference between the average China-wide APT and SAT was 0.11 degrees C decade(-1). This phenomenon is occurring nationwide, but it is more intense over western, north-eastern and eastern coastal China. The more rapid increasing trend in APT indicates that human beings actually experience surplus heat stress under a certain change in SAT, and the increased SAT explains 67.0% of the average APT warming for the country, contributing to the change in the base APT. Apart from the increasing SAT, a decrease in surface wind speed and an increase in surface vapour pressure have also been observed, contributing to 21.6% of the increase in APT and explaining the remaining 11.4%, respectively.
Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Joint Int Res Lab Climate & Environm Change ILCEC, Minist Educ KLME,CIC FEMD, Nanjing, Jiangsu, Peoples R China
Recommended Citation:
Li, Wenkai,Hu, Shuzhen,Pan, Zongmei,et al. Observed Increases in Summer Apparent Temperature over China in the Past 50 Years[J]. SOLA,2019-01-01,15:47-51