Further estimates of radiative forcing due to tropospheric ozone changes
Estimates from two 2‐D (latitude ‐ height) chemical transport models of changes in tropospheric ozone concentrations since pre‐industrial times were used to calculate the radiative forcing due to these changes. The ozone changes are from Cambridge (CAMB) and the U. K. Meteorological Office (UKMO) mo...
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| Veröffentlicht in: | Geophysical research letters 1996-11, Vol.23 (23), p.3321-3324 |
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| container_title | Geophysical research letters |
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| creator | de F. Forster, P. M. Johnson, C. E. Law, K. S. Pyle, J. A. Shine, K. P. |
| description | Estimates from two 2‐D (latitude ‐ height) chemical transport models of changes in tropospheric ozone concentrations since pre‐industrial times were used to calculate the radiative forcing due to these changes. The ozone changes are from Cambridge (CAMB) and the U. K. Meteorological Office (UKMO) models. The global and annual mean forcing using the UKMO changes was 0.3 Wm−2 and was 0.5 Wm−2 using the CAMB changes. The UKMO ozone changes are typically 60% of those from CAMB and this entirely accounts for the different forcing. Although the uncertainty is large, the calculations continue to support the case that tropospheric ozone changes make a substantial contribution (about 15%) to the total greenhouse gas radiative forcing. It is also shown that ignoring cloud and the effects of stratospheric adjustment in the radiative forcing calculations leads to an over‐estimation of the forcing by about 66%, for the global average. |
| doi_str_mv | 10.1029/96GL03277 |
| format | Article |
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Forster, P. M. ; Johnson, C. E. ; Law, K. S. ; Pyle, J. A. ; Shine, K. P.</creator><creatorcontrib>de F. Forster, P. M. ; Johnson, C. E. ; Law, K. S. ; Pyle, J. A. ; Shine, K. P.</creatorcontrib><description>Estimates from two 2‐D (latitude ‐ height) chemical transport models of changes in tropospheric ozone concentrations since pre‐industrial times were used to calculate the radiative forcing due to these changes. The ozone changes are from Cambridge (CAMB) and the U. K. Meteorological Office (UKMO) models. The global and annual mean forcing using the UKMO changes was 0.3 Wm−2 and was 0.5 Wm−2 using the CAMB changes. The UKMO ozone changes are typically 60% of those from CAMB and this entirely accounts for the different forcing. Although the uncertainty is large, the calculations continue to support the case that tropospheric ozone changes make a substantial contribution (about 15%) to the total greenhouse gas radiative forcing. It is also shown that ignoring cloud and the effects of stratospheric adjustment in the radiative forcing calculations leads to an over‐estimation of the forcing by about 66%, for the global average.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/96GL03277</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Air pollution ; Applied sciences ; Atmospheric chemistry ; Atmospheric pollution ; Earth, ocean, space ; Estimates ; Exact sciences and technology ; External geophysics ; Greenhouse effect ; Greenhouse gases ; Mathematical models ; Meteorology ; Offices ; Ozone ; Pollutants physicochemistry study: properties, effects, reactions, transport and distribution ; Pollution ; Q1 ; Radiative forcing ; Radiative transfer. 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Forster, P. M.</creatorcontrib><creatorcontrib>Johnson, C. E.</creatorcontrib><creatorcontrib>Law, K. S.</creatorcontrib><creatorcontrib>Pyle, J. A.</creatorcontrib><creatorcontrib>Shine, K. P.</creatorcontrib><title>Further estimates of radiative forcing due to tropospheric ozone changes</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Estimates from two 2‐D (latitude ‐ height) chemical transport models of changes in tropospheric ozone concentrations since pre‐industrial times were used to calculate the radiative forcing due to these changes. The ozone changes are from Cambridge (CAMB) and the U. K. Meteorological Office (UKMO) models. The global and annual mean forcing using the UKMO changes was 0.3 Wm−2 and was 0.5 Wm−2 using the CAMB changes. The UKMO ozone changes are typically 60% of those from CAMB and this entirely accounts for the different forcing. Although the uncertainty is large, the calculations continue to support the case that tropospheric ozone changes make a substantial contribution (about 15%) to the total greenhouse gas radiative forcing. It is also shown that ignoring cloud and the effects of stratospheric adjustment in the radiative forcing calculations leads to an over‐estimation of the forcing by about 66%, for the global average.</description><subject>Air pollution</subject><subject>Applied sciences</subject><subject>Atmospheric chemistry</subject><subject>Atmospheric pollution</subject><subject>Earth, ocean, space</subject><subject>Estimates</subject><subject>Exact sciences and technology</subject><subject>External geophysics</subject><subject>Greenhouse effect</subject><subject>Greenhouse gases</subject><subject>Mathematical models</subject><subject>Meteorology</subject><subject>Offices</subject><subject>Ozone</subject><subject>Pollutants physicochemistry study: properties, effects, reactions, transport and distribution</subject><subject>Pollution</subject><subject>Q1</subject><subject>Radiative forcing</subject><subject>Radiative transfer. 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Forster, P. M.</au><au>Johnson, C. E.</au><au>Law, K. S.</au><au>Pyle, J. A.</au><au>Shine, K. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Further estimates of radiative forcing due to tropospheric ozone changes</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>1996-11-15</date><risdate>1996</risdate><volume>23</volume><issue>23</issue><spage>3321</spage><epage>3324</epage><pages>3321-3324</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Estimates from two 2‐D (latitude ‐ height) chemical transport models of changes in tropospheric ozone concentrations since pre‐industrial times were used to calculate the radiative forcing due to these changes. The ozone changes are from Cambridge (CAMB) and the U. K. Meteorological Office (UKMO) models. The global and annual mean forcing using the UKMO changes was 0.3 Wm−2 and was 0.5 Wm−2 using the CAMB changes. The UKMO ozone changes are typically 60% of those from CAMB and this entirely accounts for the different forcing. Although the uncertainty is large, the calculations continue to support the case that tropospheric ozone changes make a substantial contribution (about 15%) to the total greenhouse gas radiative forcing. It is also shown that ignoring cloud and the effects of stratospheric adjustment in the radiative forcing calculations leads to an over‐estimation of the forcing by about 66%, for the global average.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/96GL03277</doi><tpages>4</tpages></addata></record> |
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| ispartof | Geophysical research letters, 1996-11, Vol.23 (23), p.3321-3324 |
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| subjects | Air pollution Applied sciences Atmospheric chemistry Atmospheric pollution Earth, ocean, space Estimates Exact sciences and technology External geophysics Greenhouse effect Greenhouse gases Mathematical models Meteorology Offices Ozone Pollutants physicochemistry study: properties, effects, reactions, transport and distribution Pollution Q1 Radiative forcing Radiative transfer. Solar radiation |
| title | Further estimates of radiative forcing due to tropospheric ozone changes |
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