SOURCE APPORTIONMENT OF CLIMATE-FORCING BLACK CARBON IN ARCTIC AEROSOLS BY COMPOUND-SPECIFIC RADIOCARBON ANALYSIS

Informations projet

Arctic BC14

N° de convention de subvention: 298507

Projet clôturé

Date de début 14 Mai 2012

Date de fin 13 Mai 2014

Financé au titre de

• Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Coût total € 181 418,40

Contribution de l’UE € 181 418,40

Coordonné par

STOCKHOLMS UNIVERSITET
Sweden

Objectif

Anthropogenic climate warming is particularly enhanced in the Arctic. The climate forcing agents are CO2, tropospheric ozone, methane, halocarbons and carbonaceous aerosols. A key component is airborne black carbon (BC), which is a highly condensed carbonaceous aerosol released from incomplete combustion of organic matter. Arctic acts as a repository of BC after long-range transport from other emission source areas. Arctic climate is more vulnerable to BC than other regions because of its impact on the albedo of snow, glaciers and sea-ice; accelerating melting and increasing sensitivity to warming. Knowledge about BC sources is a prerequisite for an effective mitigation of the Arctic climate warming but unfortunately the relative contribution of different combustion sources of BC transported to the Arctic is still poorly understood.

This project is intended to assist society in targeting efficient mitigation of Arctic climate warming through a reduction of BC emissions. Knowledge about BC sources is a prerequisite for an effective mitigation. In the present research project the sources of Arctic BC will be apportioned with the dual-isotope (13C+14C) approach applied to one key location in western Arctic (Zeppelin mountain, Svalbard) and one in the little studied yet vast Eastern Arctic (Tiksi, Yakutia). Natural abundance radiocarbon analysis allows quantitative apportionment between fossil fuel vs biogenic and biomass combustion sources and stable carbon isotope is informative of the relative importance of wood and grass e.g. crop residues. A reduction in emissions of BC would lead to a slowdown or at least delay in the global warming and in particular a delaying of the rapid melting in the Arctic.

Champ scientifique

• natural sciences › earth and related environmental sciences › atmospheric sciences › climatology › climatic zones
• natural sciences › chemical sciences › organic chemistry › aliphatic compounds
• agricultural sciences › agricultural biotechnology › biomass
• agricultural sciences › agriculture, forestry, and fisheries › forestry
• natural sciences › chemical sciences › organic chemistry › organohalogen compounds

Programme(s)

• FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Thème(s)

• FP7-PEOPLE-2011-IEF - Marie-Curie Action: "Intra-European fellowships for career development"

Appel à propositions

FP7-PEOPLE-2011-IEF
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Régime de financement

MC-IEF - Intra-European Fellowships (IEF)

Coordinateur

STOCKHOLMS UNIVERSITET

• Contribution de l’UE: € 181 418,40
• Adresse: UNIVERSITETSVAGEN 10 ; 10691 Stockholm ; Suède
• Région: Östra Sverige › Stockholm › Stockholms län
• Type d’activité: Higher or Secondary Education Establishments
• Contact administratif: Elena Anissimova (Ms.)
• Coût total: Aucune donnée