PROGRESS IN GEOGRAPHY ›› 2015, Vol. 34 ›› Issue (2): 175-.doi: 10.11820/dlkxjz.2015.02.006

• Orginal Article • Previous Articles     Next Articles

Types of summer comfortable climate in China and their temporal and spatial distribution

Hui CHEN1(), Yechao YAN1(), Shuping YUE1, Bingxiang MENG2, Xiyuan WANG1   

  1. 1. College of Geography & Remote Sensing, Nanjing University of Information Science&Technology, Nanjing 210044, China
    2. Gutian Meteorological Administration, Gutian 352200, Fujian, China
  • Online:2015-03-23 Published:2015-03-23


Geographical differences in latitude, topography, and distance to the sea lead to a variety of summer comfortable climate types in China. Using daily data from 756 national basic stations and 122 radiation stations in China during 1993-2012, human-perceived temperature is calculated using the Universal Thermal Climate Index (UTCI). Combined with cluster analysis method, this study analyzed summer comfortable climate types as well as their spatial distribution, temporal variation, and characteristics of comfort. The results show that summer comfortable climate types in China include Southwest Plateau type, Central-Eastern Mountain type, Bohai Hilly type, Northeast Mountain-Plain type, and Northwest Mountain-Plateau type. On the Southwest Plateau, with a low latitude and high altitude, solar radiation is strong; the Central-Eastern Mountain area is comfortable and slightly cold in the summer due to high elevation and wind speed; the Bohai Hilly area is influenced distinctly by the sea breeze and is slightly hot with high humidity; the Northwest Mountain-Plateau has a pleasant temperature and sunny weather although slightly dry. Comparatively, conditions in the Northeast Mountain-Plain are the most favorable because of the cool climate and low wind speed, weak solar radiation, and moderate humidity. Based on the temporal variation of human-perceived temperature during the summer, the comfortable period of the Bohai Hilly is short but the others are relatively long. The human-perceived temperature curves of the Northeast Mountain-Plain and the Northwest Mountain-Plateau areas show a single peak with symmetric distribution while the others present a roughly single peak with asymmetrical shape. The result of this study has further enriched the results of summer comfortable climate research and provides a scientific basis for the development and planning of summer tourist resources. It can also serve as a guide to summer tourism activities.

Key words: summer comfortable climate, regional types, temporal and spatial distribution, Universal Thermal Climate Index, human-perceived temperature, China