Solar geoengineering using solid aerosol in the stratosphere

Weisenstein, D. K.; Keith, D. W.; Dykema, J. A.

doi:https://doi.org/10.5194/acp-15-11835-2015

Articles | Volume 15, issue 20

https://doi.org/10.5194/acp-15-11835-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-11835-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 20

Research article

|

26 Oct 2015

Research article |

| 26 Oct 2015

Solar geoengineering using solid aerosol in the stratosphere

D. K. Weisenstein, D. W. Keith, and J. A. Dykema

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Final revised paper (published on 26 Oct 2015)
Preprint (discussion started on 21 Apr 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

SC C2050: 'Heterogeneous reactions with solid SRM particles.', Mingjin Tang, 28 Apr 2015
- AC C5333: 'Author response to Interactive Comment by M. J. Tang', Debra Weisenstein, 28 Jul 2015
RC C2488: 'Some clarifications needed, but nevertheless a good manuscript', Anonymous Referee #1, 12 May 2015
- AC C6230: 'Response to Reviewer 1', Debra Weisenstein, 25 Aug 2015
RC C2738: 'Interactive Comment on “Solar geoengineering using solid aerosol in the stratosphere“', Anonymous Referee #2, 19 May 2015
- AC C6231: 'Response to Reviewer 2', Debra Weisenstein, 25 Aug 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Debra Weisenstein on behalf of the Authors (25 Aug 2015) Author's response Manuscript

ED: Referee Nomination & Report Request started (26 Aug 2015) by Farahnaz Khosrawi

RR by Anonymous Referee #1 (31 Aug 2015)

RR by Anonymous Referee #2 (25 Sep 2015)

ED: Reconsider after minor revisions (Editor review) (25 Sep 2015) by Farahnaz Khosrawi

AR by Debra Weisenstein on behalf of the Authors (07 Oct 2015) Author's response Manuscript

ED: Publish as is (14 Oct 2015) by Farahnaz Khosrawi

AR by Debra Weisenstein on behalf of the Authors (16 Oct 2015)

Short summary

We investigate stratospheric aerosol geoengineering with solid particle injection by modeling the fractal structure of alumina aerosols and their interaction with background sulfate. We analyze the efficacy (W m^-2 of radiative forcing per megaton of injection) and risks (ozone loss, s) for both alumina and diamond particles as a function of injected monomer radius, finding 240nm alumina and 160nm diamond optimal. We discuss the limitations of our 2-D model study and associated uncertainties.