Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC

We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a photochemical simulation. We conduct a comprehens...

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Published in:Atmospheric Chemistry and Physics
Other Authors: Choi, S. (author), Wang, Y. (author), Salawitch, R. (author), Canty, T. (author), Joiner, J. (author), Zeng, T. (author), Kurosu, T. (author), Chance, K. (author), Richter, A. (author), Huey, L. (author), Liao, J. (author), Neumann, J. (author), Nowak, J. (author), Dibb, J. (author), Weinheimer, Andrew (author), Diskin, G. (author), Ryerson, T. (author), da Silva, A. (author), Curry, J. (author), Kinnison, Douglas (author), Tilmes, Simone (author), Levelt, P. (author)
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2012
Subjects:
Online Access:http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-481
https://doi.org/10.5194/acp-12-1255-2012
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spelling ftncar:oai:drupal-site.org:articles_11669 2023-09-05T13:11:32+02:00 Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC Choi, S. (author) Wang, Y. (author) Salawitch, R. (author) Canty, T. (author) Joiner, J. (author) Zeng, T. (author) Kurosu, T. (author) Chance, K. (author) Richter, A. (author) Huey, L. (author) Liao, J. (author) Neumann, J. (author) Nowak, J. (author) Dibb, J. (author) Weinheimer, Andrew (author) Diskin, G. (author) Ryerson, T. (author) da Silva, A. (author) Curry, J. (author) Kinnison, Douglas (author) Tilmes, Simone (author) Levelt, P. (author) 2012-02-01 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-481 https://doi.org/10.5194/acp-12-1255-2012 en eng Copernicus Publications Atmospheric Chemistry and Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-481 doi:10.5194/acp-12-1255-2012 ark:/85065/d7bv7h7v Copyright Author(s) 2012. This work is distributed under the Creative Commons Attribution 3.0 License. Text article 2012 ftncar https://doi.org/10.5194/acp-12-1255-2012 2023-08-14T18:42:45Z We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a photochemical simulation. We conduct a comprehensive comparison of satellite-derived tropospheric BrO column to aircraft in-situ observations of BrO and related species. The aircraft profiles reveal that tropospheric BrO, when present during April 2008, was distributed over a broad range of altitudes rather than being confined to the planetary boundary layer (PBL). Perturbations to the total column resulting from tropospheric BrO are the same magnitude as perturbations due to longitudinal variations in the stratospheric component, so proper accounting of the stratospheric signal is essential for accurate determination of satellite-derived tropospheric BrO. We find reasonably good agreement between satellite-derived tropospheric BrO and columns found using aircraft in-situ BrO profiles, particularly when satellite radiances were obtained over bright surfaces (albedo >0.7), for solar zenith angle <80° and clear sky conditions. The rapid activation of BrO due to surface processes (the bromine explosion) is apparent in both the OMI and GOME-2 based tropospheric columns. The wide orbital swath of OMI allows examination of the evolution of tropospheric BrO on about hourly time intervals near the pole. Low surface pressure, strong wind, and high PBL height are associated with an observed BrO activation event, supporting the notion of bromine activation by high winds over snow. Article in Journal/Newspaper albedo Arctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Atmospheric Chemistry and Physics 12 3 1255 1285
institution Open Polar
collection OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
op_collection_id ftncar
language English
description We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a photochemical simulation. We conduct a comprehensive comparison of satellite-derived tropospheric BrO column to aircraft in-situ observations of BrO and related species. The aircraft profiles reveal that tropospheric BrO, when present during April 2008, was distributed over a broad range of altitudes rather than being confined to the planetary boundary layer (PBL). Perturbations to the total column resulting from tropospheric BrO are the same magnitude as perturbations due to longitudinal variations in the stratospheric component, so proper accounting of the stratospheric signal is essential for accurate determination of satellite-derived tropospheric BrO. We find reasonably good agreement between satellite-derived tropospheric BrO and columns found using aircraft in-situ BrO profiles, particularly when satellite radiances were obtained over bright surfaces (albedo >0.7), for solar zenith angle <80° and clear sky conditions. The rapid activation of BrO due to surface processes (the bromine explosion) is apparent in both the OMI and GOME-2 based tropospheric columns. The wide orbital swath of OMI allows examination of the evolution of tropospheric BrO on about hourly time intervals near the pole. Low surface pressure, strong wind, and high PBL height are associated with an observed BrO activation event, supporting the notion of bromine activation by high winds over snow.
author2 Choi, S. (author)
Wang, Y. (author)
Salawitch, R. (author)
Canty, T. (author)
Joiner, J. (author)
Zeng, T. (author)
Kurosu, T. (author)
Chance, K. (author)
Richter, A. (author)
Huey, L. (author)
Liao, J. (author)
Neumann, J. (author)
Nowak, J. (author)
Dibb, J. (author)
Weinheimer, Andrew (author)
Diskin, G. (author)
Ryerson, T. (author)
da Silva, A. (author)
Curry, J. (author)
Kinnison, Douglas (author)
Tilmes, Simone (author)
Levelt, P. (author)
format Article in Journal/Newspaper
title Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
spellingShingle Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
title_short Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
title_full Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
title_fullStr Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
title_full_unstemmed Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC
title_sort analysis of satellite-derived arctic tropospheric bro columns in conjunction with aircraft measurements during arctas and arcpac
publisher Copernicus Publications
publishDate 2012
url http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-481
https://doi.org/10.5194/acp-12-1255-2012
geographic Arctic
geographic_facet Arctic
genre albedo
Arctic
genre_facet albedo
Arctic
op_relation Atmospheric Chemistry and Physics
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-481
doi:10.5194/acp-12-1255-2012
ark:/85065/d7bv7h7v
op_rights Copyright Author(s) 2012. This work is distributed under the Creative Commons Attribution 3.0 License.
op_doi https://doi.org/10.5194/acp-12-1255-2012
container_title Atmospheric Chemistry and Physics
container_volume 12
container_issue 3
container_start_page 1255
op_container_end_page 1285
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