[Personnel: Last_Name='KREHER', First_Name='KARIN']
Tropospheric Ozone Depletion and Bromine ExplosionsEntry ID: K084_2006_2013_NZ
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.
2012/2013 season. Measurements of bromine and iodine oxide in the Antarctic marine boundary layer. Tropospheric bromine and iodine oxide (BrO and IO) concentrations were observed during the Antarctic spring 2012. The BrO and IO levels were measured using different DOAS (Differential Optical Absorption Spectroscopy) measurement techniques. The data set consists of 3 months of observations covering various areas on the sea ice in McMurdo Sound.
Start Date: 2006-09-05Stop Date: 2007-11-26
Start Date: 2012-09-01Stop Date: 2012-11-28
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Data collected by the Institute for Environmental Physics (IUP), University
of Heidelberg, Germany is stored locally on a server at the IUP; first
contact: Dr. Udo Frieß (firstname.lastname@example.org)
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
Phone: +64 3 440 0447
Fax: +64 3 447 3348
Email: k.kreher at niwa.co.nz
National Institute of Water and Atmospheric Research Ltd. (NIWA) Lauder Private Bag 50061
Province or State: Central Otago
Country: New Zealand
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Antarctica New Zealand Private Bag 4745
Country: New Zealand
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.
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Creation and Review Dates
DIF Creation Date: 2005-11-02
Last DIF Revision Date: 2014-02-21