DOI: 10.1002/2013JD020445
论文题名: Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle
作者: Niemeier U. ; Schmidt H. ; Alterskjær K. ; Kristjánsson J.E.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 21 起始页码: 11905
结束页码: 11917
语种: 英语
英文关键词: climate impact
; geoengineering
; hydrological cycle
; sea salt aerosols
; solar radiation management
; sulfate aerosols
Scopus关键词: Aerosols
; Computer simulation
; Global warming
; Greenhouse gases
; Precipitation (meteorology)
; Sun
; Climate impacts
; Geoengineering
; Hydrological cycles
; Radiation management
; Sea salt aerosol
; Sulfate aerosols
; Solar radiation
; aerosol composition
; climate effect
; energy balance
; global warming
; greenhouse gas
; regional climate
; solar radiation
英文摘要: Different techniques of solar radiation management (SRM) have been suggested to counteract global warming, among them the injection of sulfur into the stratosphere, mirrors in space, and marine cloud brightening through artificial emissions of sea salt. This study focuses on to what extent climate impacts of these three methods would be different. We present results from simulations with an Earth system model where the forcing from the increase of greenhouse gases in a transient scenario (RCP4.5) was balanced over 50 years by SRM. While global mean temperature increases slightly due to the inertia of the climate system and evolves similar with time for the different SRM methods, responses of global mean precipitation differ considerably among the methods. The hydrological sensitivity is decreased by SRM, most prominently for aerosol-based techniques, sea salt emissions, and injection of sulfate into the stratosphere. Reasons for these differences are discussed through an analysis of the surface energy budget. Furthermore, effects on large-scale tropical dynamics and on regional climate are discussed. Key Points First comparison of climate impacts of three climate engineering techniques Global precipitation decreases with all CE methods but differs between methods Impact on tropical dynamics depends on SRM method ©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/63196
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: Max Planck Institute for Meteorology, Bundesstr 53, 20146 Hamburg, Germany; Department of Geosciences, Meteorology and Oceanography Section, University of Oslo, Oslo, Norway
Recommended Citation:
Niemeier U.,Schmidt H.,Alterskjær K.,et al. Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(21)