DOI: 10.1002/jgrd.50420
论文题名: Evaluation of volcanic aerosol impacts on atmospheric water vapor using CMIP3 and CMIP5 simulations
作者: Li J. ; Sharma A.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 10 起始页码: 4448
结束页码: 4457
语种: 英语
英文关键词: atmospheric water vapor
; hydroclimatology
; volcanic impacts
; volcano/climate interactions
Scopus关键词: Atmospheric aerosols
; Atmospheric pressure
; Climate models
; Moisture
; Uncertainty analysis
; Water vapor
; Aerosol optical depths
; Atmospheric water vapor
; Coupled Model Intercomparison Project
; General circulation model
; Hydro climatologies
; Kolmogorov Smirnov (K S) test
; Spatial and temporal patterns
; Volcanic impacts
; Volcanoes
; amplitude
; El Nino-Southern Oscillation
; environmental impact
; general circulation model
; optical depth
; simulation
; volcanic aerosol
; volcanic eruption
; water vapor
; Atlantic Ocean
; Atlantic Ocean (Equatorial)
; Pacific Ocean
; Pacific Ocean (West)
英文摘要: The uncertainty in estimates of volcanic forcing and in the way general circulation models (GCMs) implement volcanic forcing affects the accuracy of the simulated atmospheric water vapor response to volcanic eruptions, which in turn influences the design of hydrologic infrastructure. This paper aims to investigate whether and to what extent the models can simulate the volcanic impacts on atmospheric water vapor. While a Kolmogorov-Smirnov (K-S) test on atmospheric water vapor from GCMs, reanalysis products, and observations all imply that volcanic aerosols have a statistically significant impact on atmospheric water vapor, and the areal extent of global atmospheric water vapor affected by volcanic eruptions is oversimulated by GCMs. Additionally, the spatial and temporal patterns of the volcano-related water vapor variability are not well simulated by GCMs. Furthermore, the strong negative correlation between aerosol optical depth and water vapor residual is observed only in the equatorial Atlantic and Indian Oceans, and parts of the western Pacific Ocean rather than across the entire globe as simulated by volcanic forcing included Coupled Model Intercomparison Project Phase 3 (CMIP3) multimodel average (or over nearly the entire tropics by volcanic forcing included the BCC-CSM1.1). Although the uncompleted removal of El Niño-Southern Oscillation signal may compromise the results, it is still safe, after performing the control run of K-S test, to draw the conclusion that while volcanic forcing does exert a significant impact on atmospheric water vapor, the underlying relationship is considerably more complex than that evident in GCM simulations. Key PointsGCMs overestimated the percentage of volcanic impacted global areaGCMs underestimated the amplitude of volcano-induced water vapor variabilityGCMs simplified the temporal pattern of volcano-induced water vapor variability ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63756
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: School of Civil and Environmental Engineering, University of New South Wales, Sydney NSW, Australia
Recommended Citation:
Li J.,Sharma A.. Evaluation of volcanic aerosol impacts on atmospheric water vapor using CMIP3 and CMIP5 simulations[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(10)