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

Creation and Review Dates

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

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