Region V (South-west Pacific)

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Region V (South-west Pacific)

• Matt Tully

7th Ozone Research Managers Meeting Geneva 18th
21st May 2007.
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Region V Dobsons
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Region V Brewers
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Region V Ozonesondes
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Region V - FTIRs
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Region V UV Spectroradiometers
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Region V Monitoring of Ozone Depleting Substances
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Longstanding Dobson sites

• Melbourne 1957 - 2008
• Brisbane 1957 - 2008
• Macquarie Island 1957 - 2008
• Invercargill/Lauder 1957 - 2008
• Mauna Loa 1957 - 2008
• Samoa 1975 - 2008
• Manila 1978 2008
• Singapore 1978 - 2008

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Longstanding ozonesonde sites

• Hilo 1964 - 2008
• Melbourne 1965 - 2008
• Lauder 1988 - 2008
• Macquarie Island 1994 2008
• Samoa 1995 - 2008
• Suva (Fiji) 1997 - 2008
• Sepang (Kuala Lumpur) 1998 2008
• Watukosek (Java) 1999 - 2008

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Calibration

• Regional Dobson Calibration Centre in Melbourne
• Regional standard was last intercompared with the
  world standard in 2006

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NIWA Results and Analysis

• NIWA combined total column database
• NIWA combined vertical trace gas and aerosol
  profile database
• Microwave radiometer and Lidar show an increase
  in ozone over Lauder between 35-45 km since late
  1990s

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UV Forecast
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Australian Ozone Science Group

• Australian Antarctic Division, ARPANSA, Bureau of
  Meteorology, CSIRO, University of Melbourne
  (organised by Department of Environment)
• Information sharing and co-ordination of
  activities
• Advice to government, media and general public

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Future Plans

• NIWA and New Zealand Cancer Society have just
  begun 3 year study into UV exposure and Vitamin D
• Bureau of Meteorology plans to begin an
  ozonesonde program in Darwin
• Bureau of Meteorology developing low-cost UV
  spectroradiometers for Solar Terrestial
  Radiation network sites

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Challenges

• Maintaining observing networks (financial and
  human resources expertise)
• International isolation
• Evaluation of historical data
• Climate change and ozone depletion links
• Models unable to reproduce response of Southern
  Hemisphere ozone to Mt Pinatubo