Region V (South-west Pacific)

Matt Tully

7th Ozone Research Managers Meeting

Geneva 18th – 21st May 2007.

Region V Dobsons

Region V Brewers

Region V Ozonesondes

Region V - FTIRs

Region V – UV Spectroradiometers

Region V Monitoring of Ozone Depleting

Substances

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

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

Calibration

• Regional Dobson Calibration Centre in Melbourne

• Regional standard was last intercompared with the world standard in 2006

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

UV Forecast

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

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

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