DOI: 10.1175/JCLI-D-15-0485.1
Scopus记录号: 2-s2.0-84977599619
论文题名: Global water vapor trend from 1988 to 2011 and its diurnal asymmetry based on GPS, radiosonde, and microwave satellite measurements
作者: Wang J. ; Dai A. ; Mears C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 14 起始页码: 5205
结束页码: 5222
语种: 英语
Scopus关键词: Atmospheric temperature
; Climate change
; Oceanography
; Radiosondes
; Satellites
; Tracking (position)
; Water vapor
; Diurnal effects
; Radiosonde observations
; Satellite observations
; Trends
; Variability
; Global positioning system
; algorithm
; climate change
; climatology
; diurnal variation
; GPS
; meteorology
; observational method
; precipitable water
; radiosonde
; satellite imagery
; surface temperature
; trend analysis
; water vapor
英文摘要: This study analyzes trends in precipitable water (PW) over land and ocean from 1988 to 2011, the PW-surface temperature Ts relationship, and their diurnal asymmetry using homogenized radiosonde data, microwave satellite observations, and ground-based global positioning system (GPS) measurements. It is found that positive PW trends predominate over the globe, with larger magnitudes over ocean than over land. The PW trend is correlated with surface warming spatially over ocean with a pattern correlation coefficient of 0.51. The PW percentage increase rate normalized by Ts expressed as is larger and closer to the rate implied by the Clausius-Clapeyron (C-C) equation over ocean than over land. The 2-hourly GPS PW data show that the PW trend from 1995 to 2011 is larger at night than during daytime. Nighttime PW monthly anomalies correlate positively and significantly with nighttime minimum temperature Tmin at all stations, but this is not true for daytime PW and maximum temperature Tmax. The ratio of relative PW changes with Tmin (dlnPW/dTmin) is larger and closer to the C-C equation's implied value of ~7% K-1 than. This suggests that the relationship between PW and Ts at night is a better indicator of the water vapor feedback than that during daytime, when clouds and other factors also influence Ts. © 2016 American Meteorological Society. 资助项目: NSF, National Science Foundation
; NOAA, National Oceanic and Atmospheric Administration
; NASA, National Aeronautics and Space Administration
; NCAR, National Center for Atmospheric Research
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50080
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, NY, United States; National Center for Atmospheric Research, Boulder, CO, United States; Remote Sensing Systems, Santa Rosa, CA, United States
Recommended Citation:
Wang J.,Dai A.,Mears C.. Global water vapor trend from 1988 to 2011 and its diurnal asymmetry based on GPS, radiosonde, and microwave satellite measurements[J]. Journal of Climate,2016-01-01,29(14)