Centre for Atmospheric Chemistry

Welcome to
the Centre for Atmospheric Chemistry

Research at the Centre for Atmospheric Chemistry advances understanding of atmospheric trace gas and aerosol chemistry, atmosphere/biosphere exchange of trace gases, and long term changes in atmospheric composition and chemistry - from the laboratory to the field and at local to global scales.

Over more than 20 years, we have established the most intensive atmospheric composition and chemistry research and training program in Australian universities. We collaborate widely in Australian and international atmospheric science communities including other universities, CSIRO, ANSTO, BOM, federal and state government departments and international networks.

Recent CAC News

October 2017: A new paper co-authored by CAC member Jenny Fisher and led by collaborators at Macquarie University was published in Atmospheric Chemistry and Physics. The paper presents the first two years of measurements of atmospheric mercury at the Australian Tropical Atmospheric Research Station in northern Australia. The results were also the topic of an article in The Conversation: Mercury from the northern hemisphere is ending up in Australia.

September 2017: As part of the Scientific basis for the Montreal Protocol, a meeting was held at Stratford-upon-Avon in September. CAC member Stephen Wilson is leading the chapter assessing the impact of ozone depleting substances on air quality and atmospheric composition. The meeting produced an update for the countries that signed the Protocol, and prepared for the full assessment which will be completed in 2018.

September 2017: CAC member Jenny Fisher visited windy Wellington to present a seminar on atmospheric nitrogen chemistry at New Zealand's National Institute of Water and Atmospheric Research.

September 2017: A new paper led by CAC PhD student Jesse Greenslade was published in Atmospheric Chemistry and Physics. The paper, titled "Stratospheric ozone intrusion events and their impacts on tropospheric ozone in the Southern Hemisphere" uses a combination of balloon-borne ozonesonde measurements and a chemical transport model to identify and quantify events when ozone is transported from the stratosphere to the troposphere over the southern ocean. 

August 2017: CAC members David Griffith, Nicholas Deutscher and Beata Bukosa attended the International Carbon Dioxide Conference (ICDC10) in Interlaken, Switzerland, which was also the 10th anniversary of this event. During the conference they presented the research related to carbon dioxide and the carbon cycle, including observations from the TCCON network, interpretation of in-situ and remote greenhouse gas measurements across Australia and radon tracer flux measurements of different greenhouse gases in agricultural environments.

August 2017: CAC member Jenny Fisher presented an invited talk at the 2017 Atmospheric Chemistry Gordon Research Conference. Her talk, titled "Fates of Volatile Organic Compounds in the Presence of (Some) NOx: Implications for the Remote Atmosphere" was part of a session on Chemistry in the Remote Atmosphere.

For more updates from CAC, check out our What's Cool page.

CAC Research Themes

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Trace Gas Measurements: 

Determining the amounts, sources and sinks of atmospheric trace gases with solar remote sensing, in situ and flux measurements, including operating two sites in the TCCON and NDACC networks.

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Modelling and Analysis: 

Using global models and developing advanced analysis methods to interpret measurements, probe datasets, and test theories of atmospheric composition and chemistry.

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Laser Photochemistry and Spectroscopy: 

Investigating photodissociation action spectroscopy, radical chemistry and microdroplet dynamics using pulsed-laser spectroscopy and mass spectrometry techniques.

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Fire Emissions: 

Using remote-sensing spectrometric techniques to quantify emissions from vegetation fires to the atmosphere.

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Agricultural Emissions: 

Developing and applying novel techniques to measure greenhouse gas emissions from agricultural practices and identifying effective strategies to mitigate emissions from the industry.

Radiation - SIPEX

Solar Radiation and Aerosols: 

Following changes in particles in the atmosphere to understand their impact, formation, and fate.