A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling
The separate climate effects of middle-atmospheric and tropospheric CO2 doubling have been simulated and analyzed with the ECHAM middle-atmosphere climate model. To this end, the CO2 concentration has been separately doubled in the middle-atmosphere, the troposphere, and the entire atmosphere, and t...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2004
|
Subjects: | |
Online Access: | https://research.tue.nl/en/publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 |
id |
ftuniveindcris:oai:pure.tue.nl:publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f |
---|---|
record_format |
openpolar |
spelling |
ftuniveindcris:oai:pure.tue.nl:publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f 2024-10-06T13:46:02+00:00 A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling Sigmond, M. Siegmund, P.C. Manzini, E. Kelder, H.M. 2004 https://research.tue.nl/en/publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 eng eng https://research.tue.nl/en/publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f info:eu-repo/semantics/closedAccess Sigmond , M , Siegmund , P C , Manzini , E & Kelder , H M 2004 , ' A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling ' , Journal of Climate , vol. 17 , no. 12 , pp. 2352-2367 . https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2004 ftuniveindcris https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 2024-09-12T15:24:55Z The separate climate effects of middle-atmospheric and tropospheric CO2 doubling have been simulated and analyzed with the ECHAM middle-atmosphere climate model. To this end, the CO2 concentration has been separately doubled in the middle-atmosphere, the troposphere, and the entire atmosphere, and the results have been compared to a control run. During NH winter, the simulated uniformly doubled CO2 climate shows an increase of the stratospheric residual circulation, a small warming in the Arctic lower stratosphere, a weakening of the zonal winds in the Arctic middle-atmosphere, an increase of the NH midlatitude tropospheric westerlies, and a poleward shift of the SH tropospheric westerlies. The uniformly doubled CO2 response in most regions is approximately equal to the sum of the separate responses to tropospheric and middle-atmospheric CO2 doubling. The increase of the stratospheric residual circulation can be attributed for about two-thirds to the tropospheric CO2 doubling and one-third to the middle-atmospheric CO2 doubling. This increase contributes to the Arctic lower-stratospheric warming and, through the thermal wind relationship, to the weakening of the Arctic middle-atmospheric zonal wind. The increase of the tropospheric NH midlatitude westerlies can be attributed mainly to the middle-atmospheric CO2 doubling, indicating the crucial importance of the middle-atmospheric CO2 doubling for the tropospheric climate change. Results from an additional experiment show that the CO2 doubling above 10 hPa, which is above the top of many current GCMs, also causes significant changes in the tropospheric climate. Article in Journal/Newspaper Arctic Climate change Eindhoven University of Technology research portal Arctic |
institution |
Open Polar |
collection |
Eindhoven University of Technology research portal |
op_collection_id |
ftuniveindcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Sigmond, M. Siegmund, P.C. Manzini, E. Kelder, H.M. A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
The separate climate effects of middle-atmospheric and tropospheric CO2 doubling have been simulated and analyzed with the ECHAM middle-atmosphere climate model. To this end, the CO2 concentration has been separately doubled in the middle-atmosphere, the troposphere, and the entire atmosphere, and the results have been compared to a control run. During NH winter, the simulated uniformly doubled CO2 climate shows an increase of the stratospheric residual circulation, a small warming in the Arctic lower stratosphere, a weakening of the zonal winds in the Arctic middle-atmosphere, an increase of the NH midlatitude tropospheric westerlies, and a poleward shift of the SH tropospheric westerlies. The uniformly doubled CO2 response in most regions is approximately equal to the sum of the separate responses to tropospheric and middle-atmospheric CO2 doubling. The increase of the stratospheric residual circulation can be attributed for about two-thirds to the tropospheric CO2 doubling and one-third to the middle-atmospheric CO2 doubling. This increase contributes to the Arctic lower-stratospheric warming and, through the thermal wind relationship, to the weakening of the Arctic middle-atmospheric zonal wind. The increase of the tropospheric NH midlatitude westerlies can be attributed mainly to the middle-atmospheric CO2 doubling, indicating the crucial importance of the middle-atmospheric CO2 doubling for the tropospheric climate change. Results from an additional experiment show that the CO2 doubling above 10 hPa, which is above the top of many current GCMs, also causes significant changes in the tropospheric climate. |
format |
Article in Journal/Newspaper |
author |
Sigmond, M. Siegmund, P.C. Manzini, E. Kelder, H.M. |
author_facet |
Sigmond, M. Siegmund, P.C. Manzini, E. Kelder, H.M. |
author_sort |
Sigmond, M. |
title |
A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
title_short |
A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
title_full |
A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
title_fullStr |
A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
title_full_unstemmed |
A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling |
title_sort |
simulation of the separate climate effects of middle-atmospheric and troposheric co2 doubling |
publishDate |
2004 |
url |
https://research.tue.nl/en/publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Sigmond , M , Siegmund , P C , Manzini , E & Kelder , H M 2004 , ' A simulation of the separate climate effects of middle-atmospheric and troposheric CO2 doubling ' , Journal of Climate , vol. 17 , no. 12 , pp. 2352-2367 . https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 |
op_relation |
https://research.tue.nl/en/publications/75c6b3db-0c1f-4f1b-86a6-04c5be36b11f |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1175/1520-0442(2004)017<2352:ASOTSC>2.0.CO;2 |
_version_ |
1812174375832518656 |