Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006
In spring 2006 a special meteorological situation occurred in the European Arctic region giving record high levels of air pollution. The synoptic situation resulted in extensive transport of pollution predominantly from agricultural fires in Eastern Europe into the Arctic region and record high air-...
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ftdoajarticles:oai:doaj.org/article:15d6ba2b1cb24fceaca5cfc0828984a3 2023-05-15T13:11:00+02:00 Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 C. Lund Myhre C. Toledano G. Myhre K. Stebel K. E. Yttri V. Aaltonen M. Johnsrud M. Frioud V. Cachorro A. de Frutos H. Lihavainen J. R. Campbell A. P. Chaikovsky M. Shiobara E. J. Welton K. Tørseth 2007-11-01T00:00:00Z https://doaj.org/article/15d6ba2b1cb24fceaca5cfc0828984a3 EN eng Copernicus Publications http://www.atmos-chem-phys.net/7/5899/2007/acp-7-5899-2007.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/15d6ba2b1cb24fceaca5cfc0828984a3 Atmospheric Chemistry and Physics, Vol 7, Iss 22, Pp 5899-5915 (2007) Physics QC1-999 Chemistry QD1-999 article 2007 ftdoajarticles 2022-12-31T08:23:09Z In spring 2006 a special meteorological situation occurred in the European Arctic region giving record high levels of air pollution. The synoptic situation resulted in extensive transport of pollution predominantly from agricultural fires in Eastern Europe into the Arctic region and record high air-pollution levels were measured at the Zeppelin observatory at Ny-Ålesund (78°54' N, 11°53' E) in the period from 25 April to 12 May. In the present study we investigate the optical properties of the aerosols from this extreme event and we estimate the radiative forcing of this episode. We examine the aerosol optical properties from the source region and into the European Arctic and explore the evolution of the episode and the changes in the optical properties. A number of sites in Eastern Europe, Northern Scandinavia and Svalbard are included in the study. The observations show that the maximum AOD was from 2–3 May at all sites and varies from 0.52 to 0.87, and the corresponding Ångstrøm exponent was relatively large. Lidar measurements from Minsk, ALOMAR (Arctic Lidar Observatory for Middle Atmosphere Research at Andenes) and Ny-Ålesund show that the aerosol layer was below 3 km at all sites the height is decreasing from the source region and into the Arctic. For the AERONET sites included (Minsk, Toravere, Hornsund) we have further studied the evolution of the aerosol size. The single scattering albedo at Svalbard is provided for two sites; Ny-Ålesund and Hornsund. Importantly the calculated single scattering albedo based on the aerosol chemical composition and size distribution from Ny-Ålesund and the AERONET measurements at Hornsund are consistent. We have found strong agreement between the satellite daily MODIS AOD and the ground-based AOD observations. This agreement is crucial for accurate radiative forcing calculations. We calculate a strong negative radiative forcing for the most polluted days employing the analysed ground based data, MODIS AOD and a multi-stream model for radiative transfer of solar ... Article in Journal/Newspaper albedo Andenes Arctic Hornsund Ny Ålesund Ny-Ålesund Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Ny-Ålesund Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 C. Lund Myhre C. Toledano G. Myhre K. Stebel K. E. Yttri V. Aaltonen M. Johnsrud M. Frioud V. Cachorro A. de Frutos H. Lihavainen J. R. Campbell A. P. Chaikovsky M. Shiobara E. J. Welton K. Tørseth Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
In spring 2006 a special meteorological situation occurred in the European Arctic region giving record high levels of air pollution. The synoptic situation resulted in extensive transport of pollution predominantly from agricultural fires in Eastern Europe into the Arctic region and record high air-pollution levels were measured at the Zeppelin observatory at Ny-Ålesund (78°54' N, 11°53' E) in the period from 25 April to 12 May. In the present study we investigate the optical properties of the aerosols from this extreme event and we estimate the radiative forcing of this episode. We examine the aerosol optical properties from the source region and into the European Arctic and explore the evolution of the episode and the changes in the optical properties. A number of sites in Eastern Europe, Northern Scandinavia and Svalbard are included in the study. The observations show that the maximum AOD was from 2–3 May at all sites and varies from 0.52 to 0.87, and the corresponding Ångstrøm exponent was relatively large. Lidar measurements from Minsk, ALOMAR (Arctic Lidar Observatory for Middle Atmosphere Research at Andenes) and Ny-Ålesund show that the aerosol layer was below 3 km at all sites the height is decreasing from the source region and into the Arctic. For the AERONET sites included (Minsk, Toravere, Hornsund) we have further studied the evolution of the aerosol size. The single scattering albedo at Svalbard is provided for two sites; Ny-Ålesund and Hornsund. Importantly the calculated single scattering albedo based on the aerosol chemical composition and size distribution from Ny-Ålesund and the AERONET measurements at Hornsund are consistent. We have found strong agreement between the satellite daily MODIS AOD and the ground-based AOD observations. This agreement is crucial for accurate radiative forcing calculations. We calculate a strong negative radiative forcing for the most polluted days employing the analysed ground based data, MODIS AOD and a multi-stream model for radiative transfer of solar ... |
format |
Article in Journal/Newspaper |
author |
C. Lund Myhre C. Toledano G. Myhre K. Stebel K. E. Yttri V. Aaltonen M. Johnsrud M. Frioud V. Cachorro A. de Frutos H. Lihavainen J. R. Campbell A. P. Chaikovsky M. Shiobara E. J. Welton K. Tørseth |
author_facet |
C. Lund Myhre C. Toledano G. Myhre K. Stebel K. E. Yttri V. Aaltonen M. Johnsrud M. Frioud V. Cachorro A. de Frutos H. Lihavainen J. R. Campbell A. P. Chaikovsky M. Shiobara E. J. Welton K. Tørseth |
author_sort |
C. Lund Myhre |
title |
Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
title_short |
Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
title_full |
Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
title_fullStr |
Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
title_full_unstemmed |
Regional aerosol optical properties and radiative impact of the extreme smoke event in the European Arctic in spring 2006 |
title_sort |
regional aerosol optical properties and radiative impact of the extreme smoke event in the european arctic in spring 2006 |
publisher |
Copernicus Publications |
publishDate |
2007 |
url |
https://doaj.org/article/15d6ba2b1cb24fceaca5cfc0828984a3 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Arctic Svalbard Ny-Ålesund Hornsund Alomar |
geographic_facet |
Arctic Svalbard Ny-Ålesund Hornsund Alomar |
genre |
albedo Andenes Arctic Hornsund Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
albedo Andenes Arctic Hornsund Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 7, Iss 22, Pp 5899-5915 (2007) |
op_relation |
http://www.atmos-chem-phys.net/7/5899/2007/acp-7-5899-2007.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/15d6ba2b1cb24fceaca5cfc0828984a3 |
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1766245530334134272 |