The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants
Two studies of the effect of changing CH4 fluxes on global tropospheric oxidant levels, O3, OH, H2O2, have been performed with a multi-box photochemical model. 1) A sensitivity study is made by scaling back CH4, CO and NO emissions relative to present-day budgets. 2) specific scenarios for CH4/CO/NO...
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Online Access: | https://doi.org/10.1034/j.1600-0889.1993.t01-2-00003.x http://infoscience.epfl.ch/record/298385 |
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ftinfoscience:oai:infoscience.epfl.ch:298385 2023-05-15T16:39:00+02:00 The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants Thompson, Am Chappellaz, Ja Fung, Iy Kucsera, Tl 2022-11-23T16:12:03Z https://doi.org/10.1034/j.1600-0889.1993.t01-2-00003.x http://infoscience.epfl.ch/record/298385 unknown Copenhagen, Stockholm University Press doi:10.1034/j.1600-0889.1993.t01-2-00003.x isi:A1993LP57900003 http://infoscience.epfl.ch/record/298385 http://infoscience.epfl.ch/record/298385 Text 2022 ftinfoscience https://doi.org/10.1034/j.1600-0889.1993.t01-2-00003.x 2023-02-13T23:12:34Z Two studies of the effect of changing CH4 fluxes on global tropospheric oxidant levels, O3, OH, H2O2, have been performed with a multi-box photochemical model. 1) A sensitivity study is made by scaling back CH4, CO and NO emissions relative to present-day budgets. 2) specific scenarios for CH4/CO/NO are selected to represent sources for the PIH and LGM. The CH4 budget is taken from an evalution of wetlands and other natural sources. For CO and NO, apparent O3 levels and ice-core-derived H2O2 for the PIH are used to constrain PIH CO and NO fluxes. There is consensus that OH has decreased since the Last Glacial Maximum, in contrast to projections for future OH, on which models are in disagreement. -from Authors Text ice core EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Tellus B 45 3 242 257 |
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Open Polar |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
language |
unknown |
description |
Two studies of the effect of changing CH4 fluxes on global tropospheric oxidant levels, O3, OH, H2O2, have been performed with a multi-box photochemical model. 1) A sensitivity study is made by scaling back CH4, CO and NO emissions relative to present-day budgets. 2) specific scenarios for CH4/CO/NO are selected to represent sources for the PIH and LGM. The CH4 budget is taken from an evalution of wetlands and other natural sources. For CO and NO, apparent O3 levels and ice-core-derived H2O2 for the PIH are used to constrain PIH CO and NO fluxes. There is consensus that OH has decreased since the Last Glacial Maximum, in contrast to projections for future OH, on which models are in disagreement. -from Authors |
format |
Text |
author |
Thompson, Am Chappellaz, Ja Fung, Iy Kucsera, Tl |
spellingShingle |
Thompson, Am Chappellaz, Ja Fung, Iy Kucsera, Tl The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
author_facet |
Thompson, Am Chappellaz, Ja Fung, Iy Kucsera, Tl |
author_sort |
Thompson, Am |
title |
The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
title_short |
The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
title_full |
The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
title_fullStr |
The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
title_full_unstemmed |
The atmospheric CH4 increase since the Last Glacial Maximum: (2). Interactions with oxidants |
title_sort |
atmospheric ch4 increase since the last glacial maximum: (2). interactions with oxidants |
publisher |
Copenhagen, Stockholm University Press |
publishDate |
2022 |
url |
https://doi.org/10.1034/j.1600-0889.1993.t01-2-00003.x http://infoscience.epfl.ch/record/298385 |
genre |
ice core |
genre_facet |
ice core |
op_source |
http://infoscience.epfl.ch/record/298385 |
op_relation |
doi:10.1034/j.1600-0889.1993.t01-2-00003.x isi:A1993LP57900003 http://infoscience.epfl.ch/record/298385 |
op_doi |
https://doi.org/10.1034/j.1600-0889.1993.t01-2-00003.x |
container_title |
Tellus B |
container_volume |
45 |
container_issue |
3 |
container_start_page |
242 |
op_container_end_page |
257 |
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1766029367851352064 |