skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A new Geoengineering Model Intercomparison Project (GeoMIP) experiment designed for climate and chemistry models

Journal Article · · Geoscientific Model Development (Online)
 [1];  [1];  [2];  [2];  [3];  [4];  [1];  [5];  [6]
  1. National Center for Atmospheric Research, Boulder, CO (United States)
  2. Max Planck Inst. for Meteorology, Hamburg (Germany)
  3. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Environmental Sciences
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Univ. L'Aquila (Italy). Dept. of Physical and Chemical Sciences
  6. Univ. of Colorado, Boulder, CO (United States)
+ Show Author Affiliations

A new Geoengineering Model Intercomparison Project (GeoMIP) experiment "G4 specified stratospheric aerosols" (short name: G4SSA) is proposed to investigate the impact of stratospheric aerosol geoengineering on atmosphere, chemistry, dynamics, climate, and the environment. In contrast to the earlier G4 GeoMIP experiment, which requires an emission of sulfur dioxide (SO₂) into the model, a prescribed aerosol forcing file is provided to the community, to be consistently applied to future model experiments between 2020 and 2100. This stratospheric aerosol distribution, with a total burden of about 2 Tg S has been derived using the ECHAM5-HAM microphysical model, based on a continuous annual tropical emission of 8 Tg SO₂ yr⁻¹. A ramp-up of geoengineering in 2020 and a ramp-down in 2070 over a period of 2 years are included in the distribution, while a background aerosol burden should be used for the last 3 decades of the experiment. The performance of this experiment using climate and chemistry models in a multi-model comparison framework will allow us to better understand the impact of geoengineering and its abrupt termination after 50 years in a changing environment. The zonal and monthly mean stratospheric aerosol input data set is available at https://www2.acd.ucar.edu/gcm/geomip-g4-specified-stratospheric-aerosol-data-set.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1184960
Report Number(s):
PNNL-SA-103448; 600305000
Journal Information:
Geoscientific Model Development (Online), Vol. 8, Issue 1; ISSN 1991-9603
Publisher:
European Geosciences UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

References (30)

Modifications of the quasi-biennial oscillation by a geoengineering perturbation of the stratospheric aerosol layer: Aquila et al.: QBO modifications by geoengineering journal March 2014
Arctic cryosphere response in the Geoengineering Model Intercomparison Project G3 and G4 scenarios: ARCTIC RESPONSE TO G3 AND G4 IN GEOMIP journal February 2014
Microphysical simulations of sulfur burdens from stratospheric sulfur geoengineering journal January 2012
Weakened tropical circulation and reduced precipitation in response to geoengineering journal January 2014
The impact of geoengineering aerosols on stratospheric temperature and ozone journal October 2009
Aerosol microphysics modules in the framework of the ECHAM5 climate model – intercomparison under stratospheric conditions journal January 2009
The Geoengineering Model Intercomparison Project (GeoMIP) journal January 2011
Climate model response from the Geoengineering Model Intercomparison Project (GeoMIP): GEOMIP MODEL RESPONSE journal August 2013
An overview of the Geoengineering Model Intercomparison Project (GeoMIP): GEOMIP INTRODUCTION journal December 2013
The RCP greenhouse gas concentrations and their extensions from 1765 to 2300 journal August 2011
Arctic sea ice and atmospheric circulation under the GeoMIP G1 scenario journal January 2014
Initial fate of fine ash and sulfur from large volcanic eruptions journal January 2009
The dependency of geoengineered sulfate aerosol on the emission strategy journal October 2010
Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle: CLIMATIC IMPACT OF DIFFERENT SRM METHODS journal November 2013
Efficient formation of stratospheric aerosol for climate engineering by emission of condensible vapor from aircraft: AEROSOL FROM CONDENSIBLE VAPOR journal September 2010
Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model Intercomparison Project (GeoMIP): GeoMIP ozone response journal March 2014
Volcanic eruptions and climate journal May 2000
Stratospheric aerosol optical depths, 1850–1990 journal January 1993
Solar irradiance reduction to counteract radiative forcing from a quadrupling of CO 2 : climate responses simulated by four earth system models journal January 2012
The aerosol-climate model ECHAM5-HAM journal January 2005
An Overview of CMIP5 and the Experiment Design journal April 2012
Signatures of the Antarctic ozone hole in Southern Hemisphere surface climate change journal October 2011
Impact of geoengineered aerosols on the troposphere and stratosphere journal January 2009
Impact of very short-lived halogens on stratospheric ozone abundance and UV radiation in a geo-engineered atmosphere journal January 2012
The hydrological impact of geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP): THE HYDROLOGIC IMPACT OF GEOENGINEERING journal October 2013
The influence of eruption season on the global aerosol evolution and radiative impact of tropical volcanic eruptions journal January 2011
Tropical stratospheric circulation deduced from satellite aerosol data journal February 1992
M7: An efficient size-resolved aerosol microphysics module for large-scale aerosol transport models: AEROSOL MICROPHYSICS MODULE journal November 2004
IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) Community Simulations in Support of Upcoming Ozone and Climate Assessments dataset January 2018
IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) Community Simulations in Support of Upcoming Ozone and Climate Assessments dataset January 2018

Cited By (20)

Significant Contributions of Volcanic Aerosols to Decadal Changes in the Stratospheric Circulation: VOLCANIC EFFECT ON MEAN AGE AND ITS TRENDS journal October 2017
Comparison of the Fast and Slow Climate Response to Three Radiation Management Geoengineering Schemes journal November 2018
Climate Response to Pulse Versus Sustained Stratospheric Aerosol Forcing journal August 2019
A round Earth for climate models journal September 2019
Multiple input control strategies for robust and adaptive climate engineering in a low-order 3-box model journal September 2018
What is the limit of climate engineering by stratospheric injection of SO 2 ? journal January 2015
Stratospheric sulfate geoengineering could enhance the terrestrial photosynthesis rate journal January 2016
Heterogeneous reaction of ClONO 2 with TiO 2 and SiO 2 aerosol particles: implications for stratospheric particle injection for climate engineering journal January 2016
Impacts of stratospheric sulfate geoengineering on tropospheric ozone journal January 2017
Sulfate geoengineering: a review of the factors controlling the needed injection of sulfur dioxide journal January 2017
The G4Foam Experiment: global climate impacts of regional ocean albedo modification journal January 2017
Upper tropospheric ice sensitivity to sulfate geoengineering journal January 2018
Sulfur deposition changes under sulfate geoengineering conditions: quasi-biennial oscillation effects on the transport and lifetime of stratospheric aerosols journal January 2018
A radiative transfer module for calculating photolysis rates and solar heating in climate models: Solar-J v7.5 journal January 2017
Review of the global models used within phase 1 of the Chemistry–Climate Model Initiative (CCMI) journal January 2017
The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): motivation and experimental design journal January 2018
Changes in clouds and thermodynamics under solar geoengineering and implications for required solar reduction journal January 2018
Review of the global models used within phase 1 of the Chemistry-Climate Model Initiative (CCMI) text January 2017
The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): motivation and experimental design text January 2018
Review of the global models used within phase 1 of the Chemistry-Climate Model Initiative (CCMI) text January 2017

Similar Records

Atlantic hurricane surge response to geoengineering
Journal Article · Mon Oct 26 00:00:00 EDT 2015 · Proceedings of the National Academy of Sciences of the United States of America · OSTI ID:1184960
+8 more
Identifying the sources of uncertainty in climate model simulations of solar radiation modification with the G6sulfur and G6solar Geoengineering Model Intercomparison Project (GeoMIP) simulations
Journal Article · Tue Jul 06 00:00:00 EDT 2021 · Atmospheric Chemistry and Physics (Online) · OSTI ID:1184960
+9 more
Impact of solar geoengineering on temperatures over the Indonesian Maritime Continent
Journal Article · Wed Sep 29 00:00:00 EDT 2021 · International Journal of Climatology · OSTI ID:1184960
+3 more

Related Subjects

58 GEOSCIENCES
geoengineering model
climate
model
stratospheric aerosol distribution