A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels
International audience In spring 2006, biomass burning aerosols from eastern Europe were transported extensively to Finland, and to other parts of northern Europe. They were observed as far as in the European Arctic. In the first part of this paper, temporal and spatial evolution and transport of th...
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ftinsu:oai:HAL:hal-00302778v1 2023-11-12T04:13:25+01:00 A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels Arola, A. Lindfors, A. Natunen, A. Lehtinen, K. E. J. Finnish Meteorological Institute (FMI) Tampere University of Technology Tampere (TUT) 2007-05-16 https://hal.science/hal-00302778 https://hal.science/hal-00302778/document https://hal.science/hal-00302778/file/acpd-7-6631-2007.pdf en eng HAL CCSD European Geosciences Union hal-00302778 https://hal.science/hal-00302778 https://hal.science/hal-00302778/document https://hal.science/hal-00302778/file/acpd-7-6631-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302778 Atmospheric Chemistry and Physics Discussions, 2007, 7 (3), pp.6631-6653 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftinsu 2023-10-25T16:26:31Z International audience In spring 2006, biomass burning aerosols from eastern Europe were transported extensively to Finland, and to other parts of northern Europe. They were observed as far as in the European Arctic. In the first part of this paper, temporal and spatial evolution and transport of these biomass burning aerosols are monitored with MODIS retrieved aerosol optical depth (AOD) imagery at visible wavelengths (0.55 ?m). Comparison of MODIS and AERONET AOD is conducted at Tõravere, Estonia. Then trajectory analyses, as well as MODIS Fire Mapper products are used to better understand the type and origin of the air masses. During the studied four-week period AOD values ranged from near zero up to 1.2 at 0.55 ?m and the linear correlation between MODIS and AERONET was very high (~0.97). Temporal variability observed within this four-week period was also rather well explained by the trajectory analysis in conjunction with the fire detections produced by the MODIS Rapid Response System. In the second part of our study, the surface measurements of global and UV radiation at Jokioinen, Finland are used to study the effect of this haze episode on the levels of surface radiation. We found reductions up to 35% in surface UV irradiance (at 340 nm) as compared to typical aerosol conditions. For global (total solar) radiation, the reduction was always smaller, in line with the expected wavelength dependence of the aerosol effect. Article in Journal/Newspaper Arctic Institut national des sciences de l'Univers: HAL-INSU Arctic |
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Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Arola, A. Lindfors, A. Natunen, A. Lehtinen, K. E. J. A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience In spring 2006, biomass burning aerosols from eastern Europe were transported extensively to Finland, and to other parts of northern Europe. They were observed as far as in the European Arctic. In the first part of this paper, temporal and spatial evolution and transport of these biomass burning aerosols are monitored with MODIS retrieved aerosol optical depth (AOD) imagery at visible wavelengths (0.55 ?m). Comparison of MODIS and AERONET AOD is conducted at Tõravere, Estonia. Then trajectory analyses, as well as MODIS Fire Mapper products are used to better understand the type and origin of the air masses. During the studied four-week period AOD values ranged from near zero up to 1.2 at 0.55 ?m and the linear correlation between MODIS and AERONET was very high (~0.97). Temporal variability observed within this four-week period was also rather well explained by the trajectory analysis in conjunction with the fire detections produced by the MODIS Rapid Response System. In the second part of our study, the surface measurements of global and UV radiation at Jokioinen, Finland are used to study the effect of this haze episode on the levels of surface radiation. We found reductions up to 35% in surface UV irradiance (at 340 nm) as compared to typical aerosol conditions. For global (total solar) radiation, the reduction was always smaller, in line with the expected wavelength dependence of the aerosol effect. |
author2 |
Finnish Meteorological Institute (FMI) Tampere University of Technology Tampere (TUT) |
format |
Article in Journal/Newspaper |
author |
Arola, A. Lindfors, A. Natunen, A. Lehtinen, K. E. J. |
author_facet |
Arola, A. Lindfors, A. Natunen, A. Lehtinen, K. E. J. |
author_sort |
Arola, A. |
title |
A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
title_short |
A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
title_full |
A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
title_fullStr |
A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
title_full_unstemmed |
A case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
title_sort |
case study on long-range transported aerosols of biomass burning: effects on aerosol optical properties and surface radiation levels |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00302778 https://hal.science/hal-00302778/document https://hal.science/hal-00302778/file/acpd-7-6631-2007.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00302778 Atmospheric Chemistry and Physics Discussions, 2007, 7 (3), pp.6631-6653 |
op_relation |
hal-00302778 https://hal.science/hal-00302778 https://hal.science/hal-00302778/document https://hal.science/hal-00302778/file/acpd-7-6631-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782331424975618048 |