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| Titel |
Modelling global CO2 emissions into the atmosphere from crown, ground, and peat fires |
| VerfasserIn |
Alexey V. Eliseev, Igor I. Mokhov, Alexander V. Chernokulsky |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250102742
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| Publikation (Nr.) |
 EGU/EGU2015-2139.pdf |
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| Zusammenfassung |
| The scheme for natural fires implemented in the climate model (CM) developed at
the A.M.ÂObukhov Institute of Atmospheric Physics (IAP RAS) is extended by a
module accounting for ground and peat fires. With the IAP RAS CM, the simulations
are performed for 1700–2300 in accordance with the CMIP5 (Coupled Models
Intercomparison Project, phaseÂ5) protocol. The modelled present–day burnt area, BA, and
the corresponding CO2 emissions into the atmosphere E agree with the GFED–3.1 estimates
at most regions. In the 21st century, under the RCP (Representative Concentration
Pathways) scenarios, the global BA increases by 10–41% depending on scenario, and E
increases by 11–39%. Under the mitigation scenario RCPÂ2.6, both BA and E
slightly decrease in the 22nd–23rd centuries. For scenarios RCPÂ4.5, RCPÂ6.0, and
RCPÂ8.5, they continue to increase in these two centuries. All these changes are
mostly due to changes in natural fires activity in the boreal regions. Ground and
peat fires contribute significantly to the total emissions of CO2 from natural fires
(20-25% at the global scale depending on scenario and calendar year). Peat fires
markedly intensify interannual variability of regional CO2 emissions from natural
fires. |
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