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Tropospheric Ozone Depletion and Bromine Explosions
Entry ID: K084_2006_2007_NZ


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Summary
Abstract: Tropospheric ozone depletion events during the Antarctic spring of 06/07 and 07/08 were observed. DOAS measurements of near surface BrO and O3 concentrations were made at three locations: Cape Bird (06-07 and 07-08 seasons), the sea ice below Arrival Heights (06-07 and 07-08 seasons) and from sea ice close to Inaccessible Island (07-08 season). BrO slant columns were measured, near surface O3 were determined and snow samples were collected and analysed for mercury and pH. Two ozone depletion events were captured in the 06-07 season and 5 were captured in the 07-08 season. The dataset for the 07-08 season consists of 6 weeks measurements on the sea-ice close to Inaccesible Island, 4 concurrent weeks with a second DOAS instrument on the sea ice below Arrival Heights and then 5 weeks at Cape Bird. Calibrations of the instruments were made at Arrival Heights. Vertical profiles of temperature, humidity and ozone up to 300 m were measured occasionally.

Related URL
Link: VIEW RELATED INFORMATION


Geographic Coverage
 N: -77.22089 S: -77.81795  E: 166.58025  W: 166.429
 Min Altitude: 2 M  Max Altitude: 5 M

Temporal Coverage
Start Date: 2006-09-05
Stop Date: 2007-11-26


Location Keywords
CONTINENT > ANTARCTICA > McMURDO
CONTINENT > ANTARCTICA > ARRIVAL HEIGHTS
CONTINENT > ANTARCTICA > CAPE BIRD
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
ATMOSPHERE >AIR QUALITY >TROPOSPHERIC OZONE    [Definition]
CRYOSPHERE >SEA ICE >ICE GROWTH/MELT    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >HALOCARBONS AND HALOGENS >BROMINE MONOXIDE    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >OXYGEN COMPOUNDS >OZONE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION


Instrument
DOAS >Differential Optical Absorption Spectrometers    [Information]


Project
IPY >INTERNATIONAL POLAR YEAR    [Information]
AICI >Air-Ice Chemical Interactions - IPY coordinated studies    [Information]


Access Constraints
The data is held on NIWA's database and will not be release until the investigator has completed using the data for a PhD thesis, at which time the data will be available.


Data Set Progress
COMPLETE


Originating Center


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
KARIN KREHER
Role: INVESTIGATOR
Phone: +64 3 440 0447
Fax: +64 3 447 3348
Email: k.kreher at niwa.co.nz
Contact Address:
National Institute of Water and Atmospheric Research Ltd. (NIWA)
Lauder
Private Bag 50061
City: Omakau
Province or State: Central Otago
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Hay, T., Kreher, K. And Riedel, K. 2007. Bromine explosions and Antarctic ozone. Water and Atmosphere 15(2): 12-13.

Hay, T.D. 2007. Bromine explosions and ozone depletion. Antarctic 24: 58-59.

Hay, T.D. 2006. Bromine explosions and ozone depletion in McMurdo Sound. Access Antarctica 29:1-2

Simpson, W.R. von Glasow, R. Riedel, K. Anderson, P. Ariya, P. Bottenheim, J. Burrows, J. Carpenter, L.J. Friess, U. Goodsite, M.E. et al. Halogens and their role in polar boundary-layer ozone depletion. Atmospheric chemistry and physics 7: 4375-4418, 2007.

Creation and Review Dates
DIF Creation Date: 2005-11-02
Last DIF Revision Date: 2009-01-26


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