DOI: 10.1175/JCLI-D-15-0834.1
Scopus记录号: 2-s2.0-85014007674
论文题名: Revisiting the relationship between observed warming and surface pressure in the tibetan plateau
作者: You Q. ; Jiang Z. ; Moore G.W.K. ; Bao Y. ; Kong L. ; Kang S.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 5 起始页码: 1721
结束页码: 1737
语种: 英语
Scopus关键词: Atmospheric temperature
; Earth (planet)
; Global warming
; Snow
; Surface properties
; Geo-potential heights
; Land surface properties
; National center for atmospheric researches
; National centers for environmental predictions
; Negative correlation
; Positive correlations
; Seasonal snow cover
; Surface temperatures
; Climate change
; climate change
; climate modeling
; seasonality
; surface pressure
; surface temperature
; trend analysis
; warming
; China
; Qinghai-Xizang Plateau
英文摘要: The Tibetan Plateau (TP) has an average elevation of over 4000m and with its surrounding mountains is regarded as Earth's ''third pole.'' As a result of its size and height, climate change in the TP has its own unique characteristics that include a proposed positive correlation between the surface temperature and pressure. This study examines the trends and relationships between the surface pressure and temperature in the TP through the examination of monthly mean data from 71 stations during 1961-2013. On annual, seasonal, and monthly time scales, the TP exhibits a statistically significant warming trend that attains a rate of 0.30°Cdecade-1 for annual means over the period 1961-2013. The most pronounced warming occurs in winter, in agreement with previous studies,with evidence of acceleration in the rate after the mid-1980s and the global warming slowdown period. For the entire period of 1961-2013, the surface pressure in the TP has a positive trend of 0.08 hPa decade-1 on an annual basis, again with the largest trends occurring in winter. However, unlike what occurred with the surface temperature, the trend in surface pressure, in most cases, reversed sign after the mid-1980s. The trend in the geopotential height at 500 hPa from the National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) reanalysis is consistent with the observed surface pressure trends. Over the period 1961-2013, there is a seasonal shift in the nature of the relationship between the surface temperature and pressurewith a negative correlation during summer and autumn, and a positive correlation during winter. This suggests that the nature of the relationship between these two climate elements reflects the changing nature of the seasonal snow cover (land surface property) and cloud in the region. © 2017 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49819
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Key Laboratory of Meteorological Disaster, Ministry of Education, International Joint Laboratory on Climate and Environmental Change, and Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Earth System Modeling Center, Nanjing University of Information Science and Technology, Nanjing, China; State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Physics, University of Toronto, Toronto, ON, Canada; State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China
Recommended Citation:
You Q.,Jiang Z.,Moore G.W.K.,et al. Revisiting the relationship between observed warming and surface pressure in the tibetan plateau[J]. Journal of Climate,2017-01-01,30(5)