Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica)
Surface ozone (03) measurements made between 1997 and 2003 at Arrival Heights, Antarctica (77.8°S, 166.7°E), show sudden decreases in 0 3 mixing ratios during Antarctic springtime. These low 0 3 events are often correlated with elevated concentrations of bromine oxide (BrO). The air mass origin duri...
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2005
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ftunivcanter:oai:ir.canterbury.ac.nz:10092/14365 2023-05-15T13:49:08+02:00 Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) Riedel, Katja 2005 application/pdf http://hdl.handle.net/10092/14365 English en eng http://hdl.handle.net/10092/14365 All Rights Reserved Theses / Dissertations 2005 ftunivcanter 2022-09-08T13:40:06Z Surface ozone (03) measurements made between 1997 and 2003 at Arrival Heights, Antarctica (77.8°S, 166.7°E), show sudden decreases in 0 3 mixing ratios during Antarctic springtime. These low 0 3 events are often correlated with elevated concentrations of bromine oxide (BrO). The air mass origin during these 0 3 depletion events was investigated by calculating 5-day back trajectories. Trajectory analysis revealed that air masses had either contact with sea-ice, which was correlated with enhanced BrO columns, or were transported across the Antarctic continent, which led to 0 3 depletion events without elevated BrO concentrations. In 1997-1998 less frequent high BrO events were observed at Arrival Heights probably due to increased sea ice coverage in the Ross Sea during these El Nino years. Other/Unknown Material Antarc* Antarctic Antarctica Ross Sea Sea ice University of Canterbury, Christchurch: UC Research Repository Antarctic Arrival Heights ENVELOPE(166.650,166.650,-77.817,-77.817) Ross Sea The Antarctic |
institution |
Open Polar |
collection |
University of Canterbury, Christchurch: UC Research Repository |
op_collection_id |
ftunivcanter |
language |
English |
description |
Surface ozone (03) measurements made between 1997 and 2003 at Arrival Heights, Antarctica (77.8°S, 166.7°E), show sudden decreases in 0 3 mixing ratios during Antarctic springtime. These low 0 3 events are often correlated with elevated concentrations of bromine oxide (BrO). The air mass origin during these 0 3 depletion events was investigated by calculating 5-day back trajectories. Trajectory analysis revealed that air masses had either contact with sea-ice, which was correlated with enhanced BrO columns, or were transported across the Antarctic continent, which led to 0 3 depletion events without elevated BrO concentrations. In 1997-1998 less frequent high BrO events were observed at Arrival Heights probably due to increased sea ice coverage in the Ross Sea during these El Nino years. |
format |
Other/Unknown Material |
author |
Riedel, Katja |
spellingShingle |
Riedel, Katja Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
author_facet |
Riedel, Katja |
author_sort |
Riedel, Katja |
title |
Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
title_short |
Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
title_full |
Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
title_fullStr |
Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
title_full_unstemmed |
Tropospheric ozone depletion events and air mass origin at Arrival Heights (Antarctica) |
title_sort |
tropospheric ozone depletion events and air mass origin at arrival heights (antarctica) |
publishDate |
2005 |
url |
http://hdl.handle.net/10092/14365 |
long_lat |
ENVELOPE(166.650,166.650,-77.817,-77.817) |
geographic |
Antarctic Arrival Heights Ross Sea The Antarctic |
geographic_facet |
Antarctic Arrival Heights Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
op_relation |
http://hdl.handle.net/10092/14365 |
op_rights |
All Rights Reserved |
_version_ |
1766250905904087040 |