CollectHomepage AdvertisementContact usMessage

Arid Land Geography ›› 2024, Vol. 47 ›› Issue (6): 980-992.doi: 10.12118/j.issn.1000-6060.2023.224

• Biology and Environment • Previous Articles     Next Articles

Spatial and temporal variation characteristics of comfort index of human body in Xizang Plateau

LI Jihong1(), ZHOU Kanshe2(), ZHANG Dongdong2, PUBU Duoji2, ZHANG Weihua2, SHI Jiqing2   

  1. 1. Nagqu Meteorological Bureau, Nagqu 852000, Xizang, China
    2. Tibet Autonomous Region Climate Centre, Lhasa 850000, Xizang, China
  • Received:2023-05-16 Revised:2023-06-19 Online:2024-06-25 Published:2024-07-09
  • Contact: ZHOU Kanshe E-mail:15289066633@163.com;zhoukanshe@163.com

Abstract:

Based on daily meteorological data from 38 meteorological stations from 1981 to 2020 and climate data with a spatial resolution of 30 seconds (approximately 1 km2) from 1970 to 2000 in the Xizang Plateau, China, we analyzed the temporal and spatial variation characteristics of the comfort index of human body (ICHB) and comfort index of human body in plateau (PICHB). The results showed that: (1) Over the past 40 years, the ICHB in Xizang showed a noticeable upward trend. The overall increase rate of ICHB in the Xizang Plateau was 0.76·(10a)-1, with regional increase rates ranging from 0.57·(10a)-1 to 0.98·(10a)-1. (2) The annual and seasonal increase rates in ICHB followed the order, west>north>northeast>southeast>central and southern edge, and winter>autumn>spring>summer. (3) The PICHB indicated a cold and extremely uncomfortable environment, with severe plateau reactions mainly distributed in the mountains of the northern, western, and northeastern regions of the Xizang Plateau. Cold, uncomfortable, and severe plateau response areas were mainly distributed on the northern, central, and southern mountain edges. The cold, uncomfortable, and moderate plateau response areas were mainly distributed at lower altitudes on the northern, central, and southern margins. Cool, uncomfortable, and mild plateau response areas were mainly distributed southeast and east of the southern edge. Areas that were neither cold nor hot, felt comfortable, and had no plateau reactions were mainly distributed in southern Cona County and southern Medog County. In general, with the warming and humidifying climate trend in the Xizang Plateau, the ICHB significantly increased, and the PICHB shifted to a more comfortable state.

Key words: high altitude reaction index in plateau, comfort index of human body, comfort index of human body in plateau, Xizang Plateau