A case study of a transported bromine explosion event in the Canadian high arctic
Ozone depletion events in the polar troposphere have been linked to extremely high concentrations of bromine, known as bromine explosion events (BEE). However, the optimum meteorological conditions for the occurrence of these events remain uncertain. On 4–5 April 2011, a combination of both blowing...
Published in: | Journal of Geophysical Research: Atmospheres |
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AMER GEOPHYSICAL UNION
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Online Access: | http://hdl.handle.net/11343/58900 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369845300028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=d4d813f4571fa7d6246bdc0dfeca3a1c https://doi.org/10.1002/2015JD023711 |
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ftumelbourne:oai:jupiter.its.unimelb.edu.au:11343/58900 2023-05-15T14:27:27+02:00 A case study of a transported bromine explosion event in the Canadian high arctic Zhao, X Strong, K Adams, C Schofield, R Yang, X Richter, A Friess, U Blechschmidt, A-M Koo, J-H 2016-01-16 http://hdl.handle.net/11343/58900 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369845300028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=d4d813f4571fa7d6246bdc0dfeca3a1c https://doi.org/10.1002/2015JD023711 English eng AMER GEOPHYSICAL UNION doi:10.1002/2015JD023711 issn:2169-897X http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369845300028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=d4d813f4571fa7d6246bdc0dfeca3a1c Zhao, X; Strong, K; Adams, C; Schofield, R; Yang, X; Richter, A; Friess, U; Blechschmidt, A-M; Koo, J-H, A case study of a transported bromine explosion event in the Canadian high arctic, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2016, 121 (1), pp. 457 - 477 2169-897X http://hdl.handle.net/11343/58900 Journal Article 2016 ftumelbourne https://doi.org/10.1002/2015JD023711 2019-10-15T12:14:34Z Ozone depletion events in the polar troposphere have been linked to extremely high concentrations of bromine, known as bromine explosion events (BEE). However, the optimum meteorological conditions for the occurrence of these events remain uncertain. On 4–5 April 2011, a combination of both blowing snow and a stable shallow boundary layer was observed during a BEE at Eureka, Canada (86.4°W, 80.1°N). Measurements made by a Multi-Axis Differential Optical Absorption Spectroscopy spectrometer were used to retrieve BrO profiles and partial columns. During this event, the near-surface BrO volume mixing ratio increased to ~20 parts per trillion by volume, while ozone was depleted to ~1 ppbv from the surface to 700 m. Back trajectories and Global Ozone Monitoring Experiment-2 satellite tropospheric BrO columns confirmed that this event originated from a bromine explosion over the Beaufort Sea. From 30 to 31 March, meteorological data showed high wind speeds (24 m/s) and elevated boundary layer heights (~800 m) over the Beaufort Sea. Long-distance transportation (~1800 km over 5 days) to Eureka indicated strong recycling of BrO within the bromine plume. This event was generally captured by a global chemistry-climate model when a sea-salt bromine source from blowing snow was included. A model sensitivity study indicated that the surface BrO at Eureka was controlled by both local photochemistry and boundary layer dynamics. Comparison of the model results with both ground-based and satellite measurements confirmed that the BEE observed at Eureka was triggered by transport of enhanced BrO from the Beaufort Sea followed by local production/recycling under stable atmospheric shallow boundary layer conditions. Article in Journal/Newspaper Arctic Arctic Beaufort Sea The University of Melbourne: Digital Repository Arctic Canada Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Journal of Geophysical Research: Atmospheres 121 1 457 477 |
institution |
Open Polar |
collection |
The University of Melbourne: Digital Repository |
op_collection_id |
ftumelbourne |
language |
English |
description |
Ozone depletion events in the polar troposphere have been linked to extremely high concentrations of bromine, known as bromine explosion events (BEE). However, the optimum meteorological conditions for the occurrence of these events remain uncertain. On 4–5 April 2011, a combination of both blowing snow and a stable shallow boundary layer was observed during a BEE at Eureka, Canada (86.4°W, 80.1°N). Measurements made by a Multi-Axis Differential Optical Absorption Spectroscopy spectrometer were used to retrieve BrO profiles and partial columns. During this event, the near-surface BrO volume mixing ratio increased to ~20 parts per trillion by volume, while ozone was depleted to ~1 ppbv from the surface to 700 m. Back trajectories and Global Ozone Monitoring Experiment-2 satellite tropospheric BrO columns confirmed that this event originated from a bromine explosion over the Beaufort Sea. From 30 to 31 March, meteorological data showed high wind speeds (24 m/s) and elevated boundary layer heights (~800 m) over the Beaufort Sea. Long-distance transportation (~1800 km over 5 days) to Eureka indicated strong recycling of BrO within the bromine plume. This event was generally captured by a global chemistry-climate model when a sea-salt bromine source from blowing snow was included. A model sensitivity study indicated that the surface BrO at Eureka was controlled by both local photochemistry and boundary layer dynamics. Comparison of the model results with both ground-based and satellite measurements confirmed that the BEE observed at Eureka was triggered by transport of enhanced BrO from the Beaufort Sea followed by local production/recycling under stable atmospheric shallow boundary layer conditions. |
format |
Article in Journal/Newspaper |
author |
Zhao, X Strong, K Adams, C Schofield, R Yang, X Richter, A Friess, U Blechschmidt, A-M Koo, J-H |
spellingShingle |
Zhao, X Strong, K Adams, C Schofield, R Yang, X Richter, A Friess, U Blechschmidt, A-M Koo, J-H A case study of a transported bromine explosion event in the Canadian high arctic |
author_facet |
Zhao, X Strong, K Adams, C Schofield, R Yang, X Richter, A Friess, U Blechschmidt, A-M Koo, J-H |
author_sort |
Zhao, X |
title |
A case study of a transported bromine explosion event in the Canadian high arctic |
title_short |
A case study of a transported bromine explosion event in the Canadian high arctic |
title_full |
A case study of a transported bromine explosion event in the Canadian high arctic |
title_fullStr |
A case study of a transported bromine explosion event in the Canadian high arctic |
title_full_unstemmed |
A case study of a transported bromine explosion event in the Canadian high arctic |
title_sort |
case study of a transported bromine explosion event in the canadian high arctic |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2016 |
url |
http://hdl.handle.net/11343/58900 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369845300028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=d4d813f4571fa7d6246bdc0dfeca3a1c https://doi.org/10.1002/2015JD023711 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) |
geographic |
Arctic Canada Eureka |
geographic_facet |
Arctic Canada Eureka |
genre |
Arctic Arctic Beaufort Sea |
genre_facet |
Arctic Arctic Beaufort Sea |
op_relation |
doi:10.1002/2015JD023711 issn:2169-897X http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369845300028&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=d4d813f4571fa7d6246bdc0dfeca3a1c Zhao, X; Strong, K; Adams, C; Schofield, R; Yang, X; Richter, A; Friess, U; Blechschmidt, A-M; Koo, J-H, A case study of a transported bromine explosion event in the Canadian high arctic, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2016, 121 (1), pp. 457 - 477 2169-897X http://hdl.handle.net/11343/58900 |
op_doi |
https://doi.org/10.1002/2015JD023711 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
121 |
container_issue |
1 |
container_start_page |
457 |
op_container_end_page |
477 |
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1766301208245436416 |