关键词: 安徽省, 体感温度, 时空变化特征

Abstract: The somatosensory temperature of each station was calculated and their annual variation characteristics were analyzed using daily average temperature, difference between maximum and minimum temperature, average relative humidity and wind speed of 81 national meteorological observation stations in Anhui Province from July to August during 1987-2016. Spatial distribution of somatosensory temperature in summer holiday was given through combining site average somatosensory temperature and DEM topographic data. According to the classification of comfort level, the comfort in summer holiday in Anhui Province was obtained. The results were as follows: (1) Somatosensory temperature in summer holiday in Anhui Province showed a fluctuating upward trend in recent 30 a. It was positively correlated with average temperature and average relative humidity, while negatively correlated with difference between maximum and minimum temperature and average wind speed. The increase of average temperature, average relative humidity and decrease of maximum and minimum temperature difference, average wind speed promoted the upward trend of somatosensory temperature with climate tendency rate (0.0224 ℃·a-1) slightly bigger than that (0.016 ℃·a-1) of average temperature. (2) Somatosensory temperature changed with topography significantly and it generally exceeded 29.0 ℃ in most plain areas along the Yangtze and Huaihe Rivers. Affected by elevation, vegetation cover and topographic shelter effect, somatosensory temperature in most areas of Dabie Mountains and Southern Anhui Mountains was below 27.0 ℃. (3) Plain areas along Huaibei, most of Jianghuai region and plain areas along the Yangtze River were mostly “less comfortable” areas. Both Dabie Mountains and Southern Anhui Mountains contained “most comfortable”, “comfortable” or “more comfortable” areas. The topographic shelter effect and high vegetation cover in mountainous areas provided resonable regional climate conditions for summer tourism in Anhui Province.

Key words: Anhui Province, somatosensory temperature, temporal and spatial characteristics