Sulfuric acid deposition from stratospheric geoengineering with sulfate aerosols

Handle URI:
http://hdl.handle.net/10754/552141
Title:
Sulfuric acid deposition from stratospheric geoengineering with sulfate aerosols
Authors:
Kravitz, Ben; Robock, Alan; Oman, Luke; Stenchikov, Georgiy L. ( 0000-0001-9033-4925 ) ; Marquardt, Allison B.
Abstract:
We used a general circulation model of Earth's climate to conduct geoengineering experiments involving stratospheric injection of sulfur dioxide and analyzed the resulting deposition of sulfate. When sulfur dioxide is injected into the tropical or Arctic stratosphere, the main additional surface deposition of sulfate occurs in midlatitude bands, because of strong cross-tropopause flux in the jet stream regions. We used critical load studies to determine the effects of this increase in sulfate deposition on terrestrial ecosystems by assuming the upper limit of hydration of all sulfate aerosols into sulfuric acid. For annual injection of 5 Tg of SO2 into the tropical stratosphere or 3 Tg of SO2 into the Arctic stratosphere, neither the maximum point value of sulfate deposition of approximately 1.5 mEq m−2 a−1 nor the largest additional deposition that would result from geoengineering of approximately 0.05 mEq m−2 a−1 is enough to negatively impact most ecosystems.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Sulfuric acid deposition from stratospheric geoengineering with sulfate aerosols 2009, 114 (D14) Journal of Geophysical Research
Journal:
Journal of Geophysical Research
Issue Date:
28-Jul-2009
DOI:
10.1029/2009JD011918
Type:
Article
ISSN:
0148-0227
Additional Links:
http://doi.wiley.com/10.1029/2009JD011918
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKravitz, Benen
dc.contributor.authorRobock, Alanen
dc.contributor.authorOman, Lukeen
dc.contributor.authorStenchikov, Georgiy L.en
dc.contributor.authorMarquardt, Allison B.en
dc.date.accessioned2015-05-04T16:00:58Zen
dc.date.available2015-05-04T16:00:58Zen
dc.date.issued2009-07-28en
dc.identifier.citationSulfuric acid deposition from stratospheric geoengineering with sulfate aerosols 2009, 114 (D14) Journal of Geophysical Researchen
dc.identifier.issn0148-0227en
dc.identifier.doi10.1029/2009JD011918en
dc.identifier.urihttp://hdl.handle.net/10754/552141en
dc.description.abstractWe used a general circulation model of Earth's climate to conduct geoengineering experiments involving stratospheric injection of sulfur dioxide and analyzed the resulting deposition of sulfate. When sulfur dioxide is injected into the tropical or Arctic stratosphere, the main additional surface deposition of sulfate occurs in midlatitude bands, because of strong cross-tropopause flux in the jet stream regions. We used critical load studies to determine the effects of this increase in sulfate deposition on terrestrial ecosystems by assuming the upper limit of hydration of all sulfate aerosols into sulfuric acid. For annual injection of 5 Tg of SO2 into the tropical stratosphere or 3 Tg of SO2 into the Arctic stratosphere, neither the maximum point value of sulfate deposition of approximately 1.5 mEq m−2 a−1 nor the largest additional deposition that would result from geoengineering of approximately 0.05 mEq m−2 a−1 is enough to negatively impact most ecosystems.en
dc.relation.urlhttp://doi.wiley.com/10.1029/2009JD011918en
dc.rightsArchived with thanks to Journal of Geophysical Researchen
dc.subjectgeoengineeringen
dc.subjectacid depositionen
dc.titleSulfuric acid deposition from stratospheric geoengineering with sulfate aerosolsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Geophysical Researchen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Environmental Sciences, Rutgers University, New Brunswick, New Jersey, USAen
dc.contributor.institutionDepartment of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland, USAen
kaust.authorStenchikov, Georgiy L.en
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