Long-term trends of the black carbon concentrations in the Canadian Arctic
International audience During the winter and spring the North American Arctic is impacted by anthropogenic black carbon (BC) in ''Arctic Haze'' pollution from sources mainly located in Europe and Russia. This black carbon, while suspended in the atmosphere and in surface snow, ha...
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Online Access: | https://hal.science/hal-03129745 https://hal.science/hal-03129745/document https://hal.science/hal-03129745/file/2003JD004331.pdf https://doi.org/10.1029/2003JD004331 |
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ftceafr:oai:HAL:hal-03129745v1 2024-09-15T17:59:56+00:00 Long-term trends of the black carbon concentrations in the Canadian Arctic Sharma, S. Lavoué, D. Cachier, H. Barrie, L.A. Gong, S.L. Meteorological Service of Canada (MSC) Environment and Climate Change Canada (ECCC) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Chimie Atmosphérique Expérimentale (CAE) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2004 https://hal.science/hal-03129745 https://hal.science/hal-03129745/document https://hal.science/hal-03129745/file/2003JD004331.pdf https://doi.org/10.1029/2003JD004331 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2003JD004331 hal-03129745 https://hal.science/hal-03129745 https://hal.science/hal-03129745/document https://hal.science/hal-03129745/file/2003JD004331.pdf doi:10.1029/2003JD004331 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03129745 Journal of Geophysical Research, 2004, 109 (D15), ⟨10.1029/2003JD004331⟩ black carbon emissions Arctic [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2004 ftceafr https://doi.org/10.1029/2003JD004331 2024-07-22T13:16:27Z International audience During the winter and spring the North American Arctic is impacted by anthropogenic black carbon (BC) in ''Arctic Haze'' pollution from sources mainly located in Europe and Russia. This black carbon, while suspended in the atmosphere and in surface snow, has a significant effect on radiative forcing of the Arctic atmosphere. Routine ground-level observations of aerosol black carbon by optical absorption have been made at a Canadian Arctic location, Alert (82.5°N, 62.5°W), Nunavut since 1989. A 3-year intensive study was conducted to compare BC obtained by the thermal analysis and optical absorption methods, so that the seasonal variations in the ''operational'' absorption cross sections of the aerosol could be determined. A time series analysis indicated that black carbon concentrations undergo a strong seasonal variation superimposed upon a long-term trend. The latter shows a decrease of about 55% in BC concentrations between 1989 and 2002 at Alert. Factors responsible for these trends such as changes in emissions and atmospheric transport support the hypothesis that BC emissions from the former USSR are mostly responsible for the observed decreasing trend. Transport from other sectors such as North America and Europe are not as prevalent at Alert. Article in Journal/Newspaper black carbon Nunavut HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Journal of Geophysical Research 109 D15 |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
black carbon emissions Arctic [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
black carbon emissions Arctic [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Sharma, S. Lavoué, D. Cachier, H. Barrie, L.A. Gong, S.L. Long-term trends of the black carbon concentrations in the Canadian Arctic |
topic_facet |
black carbon emissions Arctic [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience During the winter and spring the North American Arctic is impacted by anthropogenic black carbon (BC) in ''Arctic Haze'' pollution from sources mainly located in Europe and Russia. This black carbon, while suspended in the atmosphere and in surface snow, has a significant effect on radiative forcing of the Arctic atmosphere. Routine ground-level observations of aerosol black carbon by optical absorption have been made at a Canadian Arctic location, Alert (82.5°N, 62.5°W), Nunavut since 1989. A 3-year intensive study was conducted to compare BC obtained by the thermal analysis and optical absorption methods, so that the seasonal variations in the ''operational'' absorption cross sections of the aerosol could be determined. A time series analysis indicated that black carbon concentrations undergo a strong seasonal variation superimposed upon a long-term trend. The latter shows a decrease of about 55% in BC concentrations between 1989 and 2002 at Alert. Factors responsible for these trends such as changes in emissions and atmospheric transport support the hypothesis that BC emissions from the former USSR are mostly responsible for the observed decreasing trend. Transport from other sectors such as North America and Europe are not as prevalent at Alert. |
author2 |
Meteorological Service of Canada (MSC) Environment and Climate Change Canada (ECCC) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Chimie Atmosphérique Expérimentale (CAE) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Sharma, S. Lavoué, D. Cachier, H. Barrie, L.A. Gong, S.L. |
author_facet |
Sharma, S. Lavoué, D. Cachier, H. Barrie, L.A. Gong, S.L. |
author_sort |
Sharma, S. |
title |
Long-term trends of the black carbon concentrations in the Canadian Arctic |
title_short |
Long-term trends of the black carbon concentrations in the Canadian Arctic |
title_full |
Long-term trends of the black carbon concentrations in the Canadian Arctic |
title_fullStr |
Long-term trends of the black carbon concentrations in the Canadian Arctic |
title_full_unstemmed |
Long-term trends of the black carbon concentrations in the Canadian Arctic |
title_sort |
long-term trends of the black carbon concentrations in the canadian arctic |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-03129745 https://hal.science/hal-03129745/document https://hal.science/hal-03129745/file/2003JD004331.pdf https://doi.org/10.1029/2003JD004331 |
genre |
black carbon Nunavut |
genre_facet |
black carbon Nunavut |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03129745 Journal of Geophysical Research, 2004, 109 (D15), ⟨10.1029/2003JD004331⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2003JD004331 hal-03129745 https://hal.science/hal-03129745 https://hal.science/hal-03129745/document https://hal.science/hal-03129745/file/2003JD004331.pdf doi:10.1029/2003JD004331 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2003JD004331 |
container_title |
Journal of Geophysical Research |
container_volume |
109 |
container_issue |
D15 |
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1810437057940553728 |