A New interpretation of total column BrO during Arctic spring
Emission of bromine from sea-salt aerosol, frost flowers, ice leads, and snow results in the nearly complete removal of surface ozone during Arctic spring. Regions of enhanced total column BrO observed by satellites have traditionally been associated with these emissions. However, airborne measureme...
Published in: | Geophysical Research Letters |
---|---|
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2010
|
Subjects: | |
Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-889 https://doi.org/10.1029/2010GL043798 |
id |
ftncar:oai:drupal-site.org:articles_10441 |
---|---|
record_format |
openpolar |
spelling |
ftncar:oai:drupal-site.org:articles_10441 2023-09-05T13:16:20+02:00 A New interpretation of total column BrO during Arctic spring Salawitch, R. (author) Canty, T. (author) Kurosu, T. (author) Chance, K. (author) Liang, Q. (author) da Silva, A. (author) Pawson, S. (author) Nielsen, J. (author) Rodriguez, J. (author) Bhartia, P. (author) Liu, X. (author) Huey, L. (author) Liao, J. (author) Stickel, R. (author) Tanner, D. (author) Dibb, J. (author) Simpson, W. (author) Donohoue, D. (author) Weinheimer, Andrew (author) Flocke, Frank (author) Knapp, David (author) Montzka, Denise (author) Neuman, J. (author) Nowak, J. (author) Ryerson, T. (author) Oltmans, S. (author) Blake, D. (author) Atlas, E. (author) Kinnison, Douglas (author) Tilmes, Simone (author) Pan, Laura (author) Hendrick, F. (author) Van Roozendael, M. (author) Kreher, K. (author) Johnston, P. (author) Gao, R. (author) Johnson, B. (author) Bui, T. (author) Chen, G. (author) Pierce, R. (author) Crawford, J. (author) Jacob, D. (author) 2010-11-03 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-889 https://doi.org/10.1029/2010GL043798 en eng American Geophysical Union Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-889 doi:10.1029/2010GL043798 ark:/85065/d7nc61pg An edited version of this paper was published by AGU. Copyright 2010 American Geophysical Union. atmospheric chemistry bromine Arctic Text article 2010 ftncar https://doi.org/10.1029/2010GL043798 2023-08-14T18:38:13Z Emission of bromine from sea-salt aerosol, frost flowers, ice leads, and snow results in the nearly complete removal of surface ozone during Arctic spring. Regions of enhanced total column BrO observed by satellites have traditionally been associated with these emissions. However, airborne measurements of BrO and O3 within the convective boundary layer (CBL) during the ARCTAS and ARCPAC field campaigns at times bear little relation to enhanced column BrO. We show that the locations of numerous satellite BrO “hotspots” during Arctic spring are consistent with observations of total column ozone and tropopause height, suggesting a stratospheric origin to these regions of elevated BrO. Tropospheric enhancements of BrO large enough to affect the column abundance are also observed, with important contributions originating from above the CBL. Closure of the budget for total column BrO, albeit with significant uncertainty, is achieved by summing observed tropospheric partial columns with calculated stratospheric partial columns provided that natural, short-lived biogenic bromocarbons supply between 5 and 10 ppt of bromine to the Arctic lowermost stratosphere. Proper understanding of bromine and its effects on atmospheric composition requires accurate treatment of geographic variations in column BrO originating from both the stratosphere and troposphere. Article in Journal/Newspaper Arctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Geophysical Research Letters 37 21 n/a n/a |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
atmospheric chemistry bromine Arctic |
spellingShingle |
atmospheric chemistry bromine Arctic A New interpretation of total column BrO during Arctic spring |
topic_facet |
atmospheric chemistry bromine Arctic |
description |
Emission of bromine from sea-salt aerosol, frost flowers, ice leads, and snow results in the nearly complete removal of surface ozone during Arctic spring. Regions of enhanced total column BrO observed by satellites have traditionally been associated with these emissions. However, airborne measurements of BrO and O3 within the convective boundary layer (CBL) during the ARCTAS and ARCPAC field campaigns at times bear little relation to enhanced column BrO. We show that the locations of numerous satellite BrO “hotspots” during Arctic spring are consistent with observations of total column ozone and tropopause height, suggesting a stratospheric origin to these regions of elevated BrO. Tropospheric enhancements of BrO large enough to affect the column abundance are also observed, with important contributions originating from above the CBL. Closure of the budget for total column BrO, albeit with significant uncertainty, is achieved by summing observed tropospheric partial columns with calculated stratospheric partial columns provided that natural, short-lived biogenic bromocarbons supply between 5 and 10 ppt of bromine to the Arctic lowermost stratosphere. Proper understanding of bromine and its effects on atmospheric composition requires accurate treatment of geographic variations in column BrO originating from both the stratosphere and troposphere. |
author2 |
Salawitch, R. (author) Canty, T. (author) Kurosu, T. (author) Chance, K. (author) Liang, Q. (author) da Silva, A. (author) Pawson, S. (author) Nielsen, J. (author) Rodriguez, J. (author) Bhartia, P. (author) Liu, X. (author) Huey, L. (author) Liao, J. (author) Stickel, R. (author) Tanner, D. (author) Dibb, J. (author) Simpson, W. (author) Donohoue, D. (author) Weinheimer, Andrew (author) Flocke, Frank (author) Knapp, David (author) Montzka, Denise (author) Neuman, J. (author) Nowak, J. (author) Ryerson, T. (author) Oltmans, S. (author) Blake, D. (author) Atlas, E. (author) Kinnison, Douglas (author) Tilmes, Simone (author) Pan, Laura (author) Hendrick, F. (author) Van Roozendael, M. (author) Kreher, K. (author) Johnston, P. (author) Gao, R. (author) Johnson, B. (author) Bui, T. (author) Chen, G. (author) Pierce, R. (author) Crawford, J. (author) Jacob, D. (author) |
format |
Article in Journal/Newspaper |
title |
A New interpretation of total column BrO during Arctic spring |
title_short |
A New interpretation of total column BrO during Arctic spring |
title_full |
A New interpretation of total column BrO during Arctic spring |
title_fullStr |
A New interpretation of total column BrO during Arctic spring |
title_full_unstemmed |
A New interpretation of total column BrO during Arctic spring |
title_sort |
new interpretation of total column bro during arctic spring |
publisher |
American Geophysical Union |
publishDate |
2010 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-889 https://doi.org/10.1029/2010GL043798 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-000-889 doi:10.1029/2010GL043798 ark:/85065/d7nc61pg |
op_rights |
An edited version of this paper was published by AGU. Copyright 2010 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2010GL043798 |
container_title |
Geophysical Research Letters |
container_volume |
37 |
container_issue |
21 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1776197967328313344 |