DOI: 10.1002/2016GL069258
论文题名: Improved aerosol radiative properties as a foundation for solar geoengineering risk assessment
作者: Dykema J.A. ; Keith D.W. ; Keutsch F.N.
刊名: Geophysical Research Letters
ISSN: 0094-8853
EISSN: 1944-8584
出版年: 2016
卷: 43, 期: 14 起始页码: 7758
结束页码: 7766
语种: 英语
英文关键词: aerosol
; geonegineering
; optical properties
; solar radiation management
; stratosphere
; water vapor
Scopus关键词: Aerosols
; Atmospheric radiation
; Climate change
; Optical properties
; Radiative transfer
; Refractive index
; Sulfur compounds
; Upper atmosphere
; Water vapor
; Earth-abundant materials
; Geonegineering
; High refractive index
; Radiation management
; Radiative properties
; Radiative transfer model
; Scattering efficiency
; Tropical tropopause layers
; Risk assessment
英文摘要: Side effects resulting from the deliberate injection of sulfate aerosols intended to partially offset climate change have motivated the investigation of alternatives, including solid aerosol materials. Sulfate aerosols warm the tropical tropopause layer, increasing the flux of water vapor into the stratosphere, accelerating ozone loss, and increasing radiative forcing. The high refractive index of some solid materials may lead to reduction in these risks. We present a new analysis of the scattering efficiency and absorption of a range of candidate solid aerosols. We utilize a comprehensive radiative transfer model driven by updated, physically consistent estimates of optical properties. We compute the potential increase in stratospheric water vapor and associated longwave radiative forcing. We find that the stratospheric heating calculated in this analysis indicates some materials to be substantially riskier than previous work. We also find that there are Earth-abundant materials that may reduce some principal known risks relative to sulfate aerosols. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979747394&doi=10.1002%2f2016GL069258&partnerID=40&md5=a38bb5982a41bc1e4620896a3d284b8c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9816
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
Recommended Citation:
Dykema J.A.,Keith D.W.,Keutsch F.N.. Improved aerosol radiative properties as a foundation for solar geoengineering risk assessment[J]. Geophysical Research Letters,2016-01-01,43(14).