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Title: First Simulations of Designing Stratospheric Sulfate Aerosol Geoengineering to Meet Multiple Simultaneous Climate Objectives: DESIGNING STRATOSPHERIC GEOENGINEERING

Abstract

We describe the first simulations of stratospheric sulfate aerosol geoengineering using multiple injection locations to meet multiple simultaneous surface temperature objectives. Simulations were performed using CESM1(WACCM), a coupled atmosphere-ocean general circulation model with fully interactive stratospheric chemistry, dynamics (including an internally generated quasi-biennial oscillation), and a sophisticated treatment of sulfate aerosol formation, microphysical growth, and deposition. The objectives are defined as maintaining three temperature features at their 2020 levels against a background of the RCP8.5 scenario over the period 2020-2099. These objectives are met using a feedback mechanism in which the rate of sulfur dioxide injection at each of the four locations is adjusted independently every year of simulation. Even in the presence of uncertainties, nonlinearities, and variability, the objectives are met, predominantly by SO2 injection at 30°N and 30°S. By the last year of simulation, the feedback algorithm calls for a total injection rate of 51 Tg SO2 per year. The injections are not in the tropics, which results in a greater degree of linearity of the surface climate response with injection amount than has been found in many previous studies using injection at the equator. Because the objectives are defined in terms of annual mean temperature, the requiredmore » geeongineering results in "overcooling" during summer and "undercooling" during winter. The hydrological cycle is also suppressed as compared to the reference values corresponding to the year 2020. The demonstration we describe in this study is an important step toward understanding what geoengineering can do and what it cannot do.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [3]
  1. Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland WA USA
  2. Mechanical and Aerospace Engineering, Cornell University, Ithaca NY USA; Department of Computing and Mathematical Sciences, California Institute of Technology, Pasadena CA USA
  3. Atmospheric Chemistry, Observations, and Modeling Laboratory, National Center for Atmospheric Research, Boulder CO USA
  4. Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder CO USA
  5. Atmospheric Chemistry, Observations, and Modeling Laboratory, National Center for Atmospheric Research, Boulder CO USA; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder CO USA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1430438
Report Number(s):
PNNL-SA-124386
Journal ID: ISSN 2169-897X; 453040135
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Geophysical Research: Atmospheres
Additional Journal Information:
Journal Volume: 122; Journal Issue: 23; Journal ID: ISSN 2169-897X
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English

Citation Formats

Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Richter, Jadwiga H., Tilmes, Simone, Lamarque, Jean-Francois, Tribbia, Joseph J., and Vitt, Francis. First Simulations of Designing Stratospheric Sulfate Aerosol Geoengineering to Meet Multiple Simultaneous Climate Objectives: DESIGNING STRATOSPHERIC GEOENGINEERING. United States: N. p., 2017. Web. doi:10.1002/2017JD026874.
Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Richter, Jadwiga H., Tilmes, Simone, Lamarque, Jean-Francois, Tribbia, Joseph J., & Vitt, Francis. First Simulations of Designing Stratospheric Sulfate Aerosol Geoengineering to Meet Multiple Simultaneous Climate Objectives: DESIGNING STRATOSPHERIC GEOENGINEERING. United States. doi:10.1002/2017JD026874.
Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Richter, Jadwiga H., Tilmes, Simone, Lamarque, Jean-Francois, Tribbia, Joseph J., and Vitt, Francis. Thu . "First Simulations of Designing Stratospheric Sulfate Aerosol Geoengineering to Meet Multiple Simultaneous Climate Objectives: DESIGNING STRATOSPHERIC GEOENGINEERING". United States. doi:10.1002/2017JD026874.
@article{osti_1430438,
title = {First Simulations of Designing Stratospheric Sulfate Aerosol Geoengineering to Meet Multiple Simultaneous Climate Objectives: DESIGNING STRATOSPHERIC GEOENGINEERING},
author = {Kravitz, Ben and MacMartin, Douglas G. and Mills, Michael J. and Richter, Jadwiga H. and Tilmes, Simone and Lamarque, Jean-Francois and Tribbia, Joseph J. and Vitt, Francis},
abstractNote = {We describe the first simulations of stratospheric sulfate aerosol geoengineering using multiple injection locations to meet multiple simultaneous surface temperature objectives. Simulations were performed using CESM1(WACCM), a coupled atmosphere-ocean general circulation model with fully interactive stratospheric chemistry, dynamics (including an internally generated quasi-biennial oscillation), and a sophisticated treatment of sulfate aerosol formation, microphysical growth, and deposition. The objectives are defined as maintaining three temperature features at their 2020 levels against a background of the RCP8.5 scenario over the period 2020-2099. These objectives are met using a feedback mechanism in which the rate of sulfur dioxide injection at each of the four locations is adjusted independently every year of simulation. Even in the presence of uncertainties, nonlinearities, and variability, the objectives are met, predominantly by SO2 injection at 30°N and 30°S. By the last year of simulation, the feedback algorithm calls for a total injection rate of 51 Tg SO2 per year. The injections are not in the tropics, which results in a greater degree of linearity of the surface climate response with injection amount than has been found in many previous studies using injection at the equator. Because the objectives are defined in terms of annual mean temperature, the required geeongineering results in "overcooling" during summer and "undercooling" during winter. The hydrological cycle is also suppressed as compared to the reference values corresponding to the year 2020. The demonstration we describe in this study is an important step toward understanding what geoengineering can do and what it cannot do.},
doi = {10.1002/2017JD026874},
journal = {Journal of Geophysical Research: Atmospheres},
issn = {2169-897X},
number = 23,
volume = 122,
place = {United States},
year = {2017},
month = {12}
}

Works referenced in this record:

Dynamics of the coupled human–climate system resulting from closed-loop control of solar geoengineering
journal, June 2013


The RCP greenhouse gas concentrations and their extensions from 1765 to 2300
journal, August 2011


Radiative forcing and climate response
journal, March 1997

  • Hansen, J.; Sato, M.; Ruedy, R.
  • Journal of Geophysical Research: Atmospheres, Vol. 102, Issue D6
  • DOI: 10.1029/96JD03436

The Community Earth System Model: A Framework for Collaborative Research
journal, September 2013

  • Hurrell, James W.; Holland, M. M.; Gent, P. R.
  • Bulletin of the American Meteorological Society, Vol. 94, Issue 9
  • DOI: 10.1175/BAMS-D-12-00121.1

Regional climate responses to geoengineering with tropical and Arctic SO 2 injections
journal, January 2008

  • Robock, Alan; Oman, Luke; Stenchikov, Georgiy L.
  • Journal of Geophysical Research, Vol. 113, Issue D16
  • DOI: 10.1029/2008JD010050

Explicit feedback and the management of uncertainty in meeting climate objectives with solar geoengineering
journal, April 2014


Climate impacts of geoengineering in a delayed mitigation scenario: GEOENGINEERING AND DELAYED MITIGATION
journal, August 2016

  • Tilmes, S.; Sanderson, B. M.; O'Neill, B. C.
  • Geophysical Research Letters, Vol. 43, Issue 15
  • DOI: 10.1002/2016GL070122

Impact of geoengineered aerosols on the troposphere and stratosphere
journal, January 2009

  • Tilmes, Simone; Garcia, Rolando R.; Kinnison, Douglas E.
  • Journal of Geophysical Research, Vol. 114, Issue D12
  • DOI: 10.1029/2008JD011420

Cost analysis of stratospheric albedo modification delivery systems
journal, August 2012


Solar geoengineering using solid aerosol in the stratosphere
journal, January 2015

  • Weisenstein, D. K.; Keith, D. W.; Dykema, J. A.
  • Atmospheric Chemistry and Physics, Vol. 15, Issue 20
  • DOI: 10.5194/acp-15-11835-2015

Geoengineering as an optimization problem
journal, July 2010


The Geoengineering Model Intercomparison Project (GeoMIP): a control perspective
journal, June 2012

  • Jarvis, Andrew; Leedal, David
  • Atmospheric Science Letters, Vol. 13, Issue 3
  • DOI: 10.1002/asl.387

Polar amplification of climate change in coupled models
journal, September 2003


Assessing the controllability of Arctic sea ice extent by sulfate aerosol geoengineering: Arctic sea ice geoengineering
journal, February 2015

  • Jackson, L. S.; Crook, J. A.; Jarvis, A.
  • Geophysical Research Letters, Vol. 42, Issue 4
  • DOI: 10.1002/2014GL062240

Stratospheric solar geoengineering without ozone loss
journal, December 2016

  • Keith, David W.; Weisenstein, Debra K.; Dykema, John A.
  • Proceedings of the National Academy of Sciences, Vol. 113, Issue 52
  • DOI: 10.1073/pnas.1615572113

Toward a minimal representation of aerosols in climate models: description and evaluation in the Community Atmosphere Model CAM5
journal, January 2012

  • Liu, X.; Easter, R. C.; Ghan, S. J.
  • Geoscientific Model Development, Vol. 5, Issue 3
  • DOI: 10.5194/gmd-5-709-2012

Extratropical Influence on ITCZ Shifts in Slab Ocean Simulations of Global Warming
journal, January 2012


The impact of geoengineering aerosols on stratospheric temperature and ozone
journal, October 2009


Detecting sulphate aerosol geoengineering with different methods
journal, December 2016

  • Lo, Y. T. Eunice; Charlton-Perez, Andrew J.; Lott, Fraser C.
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep39169

Modeling of solar radiation management: a comparison of simulations using reduced solar constant and stratospheric sulphate aerosols
journal, July 2014

  • Kalidindi, Sirisha; Bala, Govindasamy; Modak, Angshuman
  • Climate Dynamics, Vol. 44, Issue 9-10
  • DOI: 10.1007/s00382-014-2240-3

What is the limit of climate engineering by stratospheric injection of SO 2 ?
journal, January 2015


Sensitivity of Simulated Climate to Horizontal and Vertical Resolution in the ECHAM5 Atmosphere Model
journal, August 2006

  • Roeckner, E.; Brokopf, R.; Esch, M.
  • Journal of Climate, Vol. 19, Issue 16
  • DOI: 10.1175/JCLI3824.1

Control of global warming?
journal, September 1990


A Risk-Based Framework for Assessing the Effectiveness of Stratospheric Aerosol Geoengineering
journal, February 2014


Geoengineering with stratospheric aerosols: What do we not know after a decade of research?: GEOENGINEERING: WHAT DO WE NOT KNOW?
journal, November 2016

  • MacMartin, Douglas G.; Kravitz, Ben; Long, Jane C. S.
  • Earth's Future, Vol. 4, Issue 11
  • DOI: 10.1002/2016EF000418

Can we test geoengineering?
journal, January 2011

  • MacMynowski, Douglas G.; Keith, David W.; Caldeira, Ken
  • Energy & Environmental Science, Vol. 4, Issue 12
  • DOI: 10.1039/c1ee01256h

Management of trade-offs in geoengineering through optimal choice of non-uniform radiative forcing
journal, October 2012

  • MacMartin, Douglas G.; Keith, David W.; Kravitz, Ben
  • Nature Climate Change, Vol. 3, Issue 4
  • DOI: 10.1038/nclimate1722

The next generation of scenarios for climate change research and assessment
journal, February 2010

  • Moss, Richard H.; Edmonds, Jae A.; Hibbard, Kathy A.
  • Nature, Vol. 463, Issue 7282
  • DOI: 10.1038/nature08823

The Geoengineering Model Intercomparison Project (GeoMIP)
journal, January 2011

  • Kravitz, Ben; Robock, Alan; Boucher, Olivier
  • Atmospheric Science Letters, Vol. 12, Issue 2
  • DOI: 10.1002/asl.316

The Response of the ITCZ to Extratropical Thermal Forcing: Idealized Slab-Ocean Experiments with a GCM
journal, July 2008

  • Kang, Sarah M.; Held, Isaac M.; Frierson, Dargan M. W.
  • Journal of Climate, Vol. 21, Issue 14
  • DOI: 10.1175/2007JCLI2146.1

Solar geoengineering to limit the rate of temperature change
journal, December 2014

  • MacMartin, Douglas G.; Caldeira, Ken; Keith, David W.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 372, Issue 2031
  • DOI: 10.1098/rsta.2014.0134

Geoengineering as a design problem
journal, January 2016

  • Kravitz, Ben; MacMartin, Douglas G.; Wang, Hailong
  • Earth System Dynamics, Vol. 7, Issue 2
  • DOI: 10.5194/esd-7-469-2016

Volcanic eruptions and climate
journal, May 2000


Climate Change from 1850 to 2005 Simulated in CESM1(WACCM)
journal, October 2013

  • Marsh, Daniel R.; Mills, Michael J.; Kinnison, Douglas E.
  • Journal of Climate, Vol. 26, Issue 19
  • DOI: 10.1175/JCLI-D-12-00558.1

The aerosol-climate model ECHAM5-HAM
journal, January 2005

  • Stier, P.; Feichter, J.; Kinne, S.
  • Atmospheric Chemistry and Physics, Vol. 5, Issue 4
  • DOI: 10.5194/acp-5-1125-2005

Microphysical simulations of sulfur burdens from stratospheric sulfur geoengineering
journal, January 2012

  • English, J. M.; Toon, O. B.; Mills, M. J.
  • Atmospheric Chemistry and Physics, Vol. 12, Issue 10
  • DOI: 10.5194/acp-12-4775-2012

The Community Earth System Model (CESM) Large Ensemble Project: A Community Resource for Studying Climate Change in the Presence of Internal Climate Variability
journal, August 2015

  • Kay, J. E.; Deser, C.; Phillips, A.
  • Bulletin of the American Meteorological Society, Vol. 96, Issue 8
  • DOI: 10.1175/BAMS-D-13-00255.1

The impact of equilibrating hemispheric albedos on tropical performance in the HadGEM2‐ES coupled climate model
journal, January 2016

  • Haywood, Jim M.; Jones, Andy; Dunstone, Nick
  • Geophysical Research Letters, Vol. 43, Issue 1
  • DOI: 10.1002/2015GL066903

A Multidimensional Model for Aerosols: Description of Computational Analogs
journal, August 1988


Microphysical simulations of new particle formation in the upper troposphere and lower stratosphere
journal, January 2011

  • English, J. M.; Toon, O. B.; Mills, M. J.
  • Atmospheric Chemistry and Physics, Vol. 11, Issue 17
  • DOI: 10.5194/acp-11-9303-2011

Stratospheric heating by potential geoengineering aerosols: HEATING BY GEOENGINEERING AEROSOLS
journal, December 2011

  • Ferraro, A. J.; Highwood, E. J.; Charlton-Perez, A. J.
  • Geophysical Research Letters, Vol. 38, Issue 24
  • DOI: 10.1029/2011GL049761

Climatology and Forcing of the Quasi-Biennial Oscillation in the MAECHAM5 Model
journal, August 2006

  • Giorgetta, M. A.; Manzini, E.; Roeckner, E.
  • Journal of Climate, Vol. 19, Issue 16
  • DOI: 10.1175/JCLI3830.1