DOI: 10.1002/2013GL058818
论文题名: Modifications of the quasi-biennial oscillation by a geoengineering perturbation of the stratospheric aerosol layer
作者: Aquila V. ; Garfinkel C.I. ; Newman P.A. ; Oman L.D. ; Waugh D.W.
刊名: Geophysical Research Letters
ISSN: 0094-10291
EISSN: 1944-10022
出版年: 2014
卷: 41, 期: 5 起始页码: 1738
结束页码: 1744
语种: 英语
英文关键词: geoengineering
; QBO
; stratospheric aerosol
Scopus关键词: NASA
; Oscillators (mechanical)
; Sulfur
; Sulfur dioxide
; Velocity
; Chemistry-climate models
; Continuous injections
; Geoengineering
; Goddard earth observing systems
; QBO
; Quasi-biennial oscillation
; Stratospheric aerosols
; Tropical stratosphere
; Aerosols
; aerosol
; climate modeling
; EOS
; simulation
; stratosphere
; sulfate
; sulfur dioxide
英文摘要: This paper examines the impact of geoengineering via stratospheric sulfate aerosol on the quasi-biennial oscillation (QBO) using the NASA Goddard Earth Observing System version 5 Chemistry Climate Model. We performed four 30 year simulations with a continuous injection of sulfur dioxide on the equator at 0° longitude. The four simulations differ by the amount of sulfur dioxide injected (5 Tg/yr and 2.5 Tg/yr) and the altitude of the injection (16 km-25 km and 22 km-25 km). We find that such an injection dramatically alters the quasi-biennial oscillation, prolonging the phase of easterly shear with respect to the control simulation. This is caused by the increased aerosol heating and associated warming in the tropical lower stratosphere and higher residual vertical velocity. In the case of maximum perturbation, i.e., highest stratospheric aerosol burden, the lower tropical stratosphere is locked into a permanent westerly QBO phase. Key Points Geoengineering aerosol would prolong the westerly phase of the QBO Large geoengineering stratospheric aerosol injections might interrupt the QBO QBO changes are due to aerosol warming and increased residual vertical velocity ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895854281&doi=10.1002%2f2013GL058818&partnerID=40&md5=a2282b24ffe337876f2141409eb9d4f5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7555
Appears in Collections: 气候减缓与适应
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作者单位: Goddard Earth Science Technology and Research, Greenbelt MD, United States
Recommended Citation:
Aquila V.,Garfinkel C.I.,Newman P.A.,et al. Modifications of the quasi-biennial oscillation by a geoengineering perturbation of the stratospheric aerosol layer[J]. Geophysical Research Letters,2014-01-01,41(5).