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|June 2006||Downloads & Links
GAW Global Air Chemistry Observatory at Cape Grim,
On 11 April 2006, 30 years of continuous operation of the Cape Grim Baseline Air Pollution Station were celebrated. Cape Grim is situated on the north-west tip of Tasmania in the famous “roaring forties” wind belt of the southern hemisphere. The observatory has played a critical role in detecting and understanding changes in atmospheric composition in the southern atmosphere related to climate change. It is amongst the five oldest stations in a 24-station network of global observatories coordinated by the WMO Global Atmosphere Watch (GAW) programme.
Grim Baseline Air Pollution Station looking south, towards
station is funded and operated by the Australian Bureau of
Meteorology and the science programme is jointly managed
with Marine and Atmospheric Research
of Australia’s Commonwealth Scientific and Industrial
Research Organisation (CSIRO).
Researchers from the University of Wollongong, the
University of Tasmania and the Australian Nuclear Science
and Technology Organisation also participate. The
celebrations on 11 April involved many of the current and
past staff and scientists, as well as representatives from
the South African, Chinese, Indonesian and Malaysian GAW
stations. The Chief of the WMO Environment Division, with
responsibility for the WMO-GAW programme also attended,
unveiling with Australian dignitaries a commemorative plaque
and giving a keynote address.
Unveiling of commemorative plaque on Cape Grim’s 30th anniversary as a global
Grim commenced operations in a borrowed US National
Aeronautics and Space Administration caravan in April 1976.
One of the first gases monitored was carbon dioxide.
Measurements of ozone-depleting substances began in 1978,
creating one of the longest continuous records of these
gases in the world. Also since 1976, regular samples of
clean air have been collected and stored in an archive at
CSIRO Marine and Atmospheric Research, creating a unique
library of clean air used by scientists around the world for
probing changes in the atmosphere. In 30 years, Cape Grim
research has hosted a number of large international
experiments under the International Geosphere-Biosphere
Programme, assessing aerosol chemistry, cloud and oxidation
processes in the remote marine boundary layer. Most
recently, it hosted the research campaign “Precursors to
particles 2006”, involving groups from Australia, New
Zealand, Germany and the USA working together under the
Surface Ocean Lower Atmosphere Study (SOLAS) project.
For more information, see: http://www.wmo.int/pages/prog/arep/gaw/gaw_home.html
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