DOI: 10.1002/joc.5379
论文题名: Spatial and temporal variations in extreme temperature in Central Asia
作者: Feng R. ; Yu R. ; Zheng H. ; Gan M.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e388
结束页码: e400
语种: 英语
英文关键词: Central Asia
; ETCCDI
; extreme temperature
; spatial–temporal variations
Scopus关键词: Climatology
; Earth atmosphere
; Central Asia
; Climate change detection
; Diurnal temperature ranges
; ETCCDI
; Extreme temperatures
; Maximum and minimum temperatures
; Spatial and temporal variation
; Temporal variation
; Climate change
; climate change
; extreme event
; global warming
; seasonal variation
; spatial variation
; temperature profile
; temporal variation
; trend analysis
; China
; Turkmenistan
; Xinjiang Uygur
英文摘要: Central Asia, a typical arid and semi-arid area, is very sensitive to climate change and is projected to undergo vigorous warming trend in future. However, it is still unclear how extreme temperatures have changed. Therefore, using the daily maximum and minimum temperatures collected from 108 stations in the study area from 1981 to 2015, the spatial–temporal variations in extreme temperature in Central Asia were analysed on both annual and seasonal scales based on 11 indices from The Expert Team on Climate Change Detection and Indices. Results show that: (1) from 1981 to 2015, all extreme temperature values exhibited increasing trends on an annual scale, but maximum temperature (TMAX) increased faster than the minimum temperature (TMIN), leading to an overall increase in the diurnal temperature range (DTR). Most of the stations in Central Asia, except for those in Xinjiang (China), exhibited an increasing trend in DTR, while most of the stations in Xinjiang (China) exhibited reversely significant decreasing trends. (2) TMAX, TMIN and DTR increased significantly, mainly during spring and summer. The trends of most warm extreme indices (warm days, warm nights and warmest days) indicate that the warming mainly occurred in spring, while most cold extreme indices (cool days, cool nights and coldest nights) exhibited significant warming trends in autumn. Dominant warming during spring and autumn can lead to longer summers, which may further accelerate the frequencies and magnitudes of temperature extremes. (3) Additionally, TMAX, TMIN and the percentile-based warm indices all exhibited significant increasing trends from southwestern Central Asia (Turkmenistan) to eastern Central Asia (Xinjiang (China)) via the Tianshan Mountains. Although the percentile-based cold indices showed decreasing trends in this region, they were too minor to offset the overall warming trend. With longer summers, stronger and more prolonged melting seasons were detected in the mountains of Central Asia. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116936
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Science, Urumqi, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Feng R.,Yu R.,Zheng H.,et al. Spatial and temporal variations in extreme temperature in Central Asia[J]. International Journal of Climatology,2018-01-01,38