Radiative impact of an extreme Arctic biomass-burning event
The aim of the presented study was to investigate the impact on the radiation budget of a biomass-burning plume, transported from Alaska to the High Arctic region of Ny-Ålesund, Svalbard, in early July 2015. Since the mean aerosol optical depth increased by the factor of 10 above the average summer...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00041678 2023-05-15T13:11:46+02:00 Radiative impact of an extreme Arctic biomass-burning event Lisok, Justyna Rozwadowska, Anna Pedersen, Jesper G. Markowicz, Krzysztof M. Ritter, Christoph Kaminski, Jacek W. Struzewska, Joanna Mazzola, Mauro Udisti, Roberto Becagli, Silvia Gorecka, Izabela 2018-06 electronic https://doi.org/10.5194/acp-18-8829-2018 https://noa.gwlb.de/receive/cop_mods_00041678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041298/acp-18-8829-2018.pdf https://acp.copernicus.org/articles/18/8829/2018/acp-18-8829-2018.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-18-8829-2018 https://noa.gwlb.de/receive/cop_mods_00041678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041298/acp-18-8829-2018.pdf https://acp.copernicus.org/articles/18/8829/2018/acp-18-8829-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/acp-18-8829-2018 2022-02-08T22:41:29Z The aim of the presented study was to investigate the impact on the radiation budget of a biomass-burning plume, transported from Alaska to the High Arctic region of Ny-Ålesund, Svalbard, in early July 2015. Since the mean aerosol optical depth increased by the factor of 10 above the average summer background values, this large aerosol load event is considered particularly exceptional in the last 25 years. In situ data with hygroscopic growth equations, as well as remote sensing measurements as inputs to radiative transfer models, were used, in order to estimate biases associated with (i) hygroscopicity, (ii) variability of single-scattering albedo profiles, and (iii) plane-parallel closure of the modelled atmosphere. A chemical weather model with satellite-derived biomass-burning emissions was applied to interpret the transport and transformation pathways. The provided MODTRAN radiative transfer model (RTM) simulations for the smoke event (14:00 9 July–11:30 11 July) resulted in a mean aerosol direct radiative forcing at the levels of −78.9 and −47.0 W m−2 at the surface and at the top of the atmosphere, respectively, for the mean value of aerosol optical depth equal to 0.64 at 550 nm. This corresponded to the average clear-sky direct radiative forcing of −43.3 W m−2, estimated by radiometer and model simulations at the surface. Ultimately, uncertainty associated with the plane-parallel atmosphere approximation altered results by about 2 W m−2. Furthermore, model-derived aerosol direct radiative forcing efficiency reached on average −126 W m -2/τ550 and −71 W m -2/τ550 at the surface and at the top of the atmosphere, respectively. The heating rate, estimated at up to 1.8 K day−1 inside the biomass-burning plume, implied vertical mixing with turbulent kinetic energy of 0.3 m2 s−2. Article in Journal/Newspaper albedo Arctic Ny Ålesund Ny-Ålesund Svalbard Alaska Niedersächsisches Online-Archiv NOA Arctic Ny-Ålesund Svalbard Atmospheric Chemistry and Physics 18 12 8829 8848 |
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Niedersächsisches Online-Archiv NOA |
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language |
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topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Lisok, Justyna Rozwadowska, Anna Pedersen, Jesper G. Markowicz, Krzysztof M. Ritter, Christoph Kaminski, Jacek W. Struzewska, Joanna Mazzola, Mauro Udisti, Roberto Becagli, Silvia Gorecka, Izabela Radiative impact of an extreme Arctic biomass-burning event |
topic_facet |
article Verlagsveröffentlichung |
description |
The aim of the presented study was to investigate the impact on the radiation budget of a biomass-burning plume, transported from Alaska to the High Arctic region of Ny-Ålesund, Svalbard, in early July 2015. Since the mean aerosol optical depth increased by the factor of 10 above the average summer background values, this large aerosol load event is considered particularly exceptional in the last 25 years. In situ data with hygroscopic growth equations, as well as remote sensing measurements as inputs to radiative transfer models, were used, in order to estimate biases associated with (i) hygroscopicity, (ii) variability of single-scattering albedo profiles, and (iii) plane-parallel closure of the modelled atmosphere. A chemical weather model with satellite-derived biomass-burning emissions was applied to interpret the transport and transformation pathways. The provided MODTRAN radiative transfer model (RTM) simulations for the smoke event (14:00 9 July–11:30 11 July) resulted in a mean aerosol direct radiative forcing at the levels of −78.9 and −47.0 W m−2 at the surface and at the top of the atmosphere, respectively, for the mean value of aerosol optical depth equal to 0.64 at 550 nm. This corresponded to the average clear-sky direct radiative forcing of −43.3 W m−2, estimated by radiometer and model simulations at the surface. Ultimately, uncertainty associated with the plane-parallel atmosphere approximation altered results by about 2 W m−2. Furthermore, model-derived aerosol direct radiative forcing efficiency reached on average −126 W m -2/τ550 and −71 W m -2/τ550 at the surface and at the top of the atmosphere, respectively. The heating rate, estimated at up to 1.8 K day−1 inside the biomass-burning plume, implied vertical mixing with turbulent kinetic energy of 0.3 m2 s−2. |
format |
Article in Journal/Newspaper |
author |
Lisok, Justyna Rozwadowska, Anna Pedersen, Jesper G. Markowicz, Krzysztof M. Ritter, Christoph Kaminski, Jacek W. Struzewska, Joanna Mazzola, Mauro Udisti, Roberto Becagli, Silvia Gorecka, Izabela |
author_facet |
Lisok, Justyna Rozwadowska, Anna Pedersen, Jesper G. Markowicz, Krzysztof M. Ritter, Christoph Kaminski, Jacek W. Struzewska, Joanna Mazzola, Mauro Udisti, Roberto Becagli, Silvia Gorecka, Izabela |
author_sort |
Lisok, Justyna |
title |
Radiative impact of an extreme Arctic biomass-burning event |
title_short |
Radiative impact of an extreme Arctic biomass-burning event |
title_full |
Radiative impact of an extreme Arctic biomass-burning event |
title_fullStr |
Radiative impact of an extreme Arctic biomass-burning event |
title_full_unstemmed |
Radiative impact of an extreme Arctic biomass-burning event |
title_sort |
radiative impact of an extreme arctic biomass-burning event |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-18-8829-2018 https://noa.gwlb.de/receive/cop_mods_00041678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041298/acp-18-8829-2018.pdf https://acp.copernicus.org/articles/18/8829/2018/acp-18-8829-2018.pdf |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
albedo Arctic Ny Ålesund Ny-Ålesund Svalbard Alaska |
genre_facet |
albedo Arctic Ny Ålesund Ny-Ålesund Svalbard Alaska |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-18-8829-2018 https://noa.gwlb.de/receive/cop_mods_00041678 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00041298/acp-18-8829-2018.pdf https://acp.copernicus.org/articles/18/8829/2018/acp-18-8829-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/acp-18-8829-2018 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
18 |
container_issue |
12 |
container_start_page |
8829 |
op_container_end_page |
8848 |
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1766248898033090560 |