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

July 2015: A second paper featuring CAC's collaborative work on the Southern Hemisphere Model Intercomparison Project (SHMIP) has just been published in Atmospheric Chemistry and Physics. CAC members Jenny Fisher, Clare Murphy, Nicholas Jones, and David Griffith contributed to this analysis of global model ability to represent atmospheric CO and HCHO in the Southern Hemisphere, pointing to large uncertainties in biogenic emissions and chemistry. A companion paper led by CAC was published earlier this year.

June 2015: PhD student and Laser Chemistry Laboratory member Christopher Hansen has a new publication in a themed issue of the journal Physical Chemistry Chemical Physics. The paper is based on his work studying the gas-phase ultraviolet photochemistry and photophysics of protonated quinoline, a nitrogen-containing ion and an important building block of molecules that are found in functional materials and may play a role in interstellar and extraterrestrial chemistry. Read more on the CAC student page.

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

CAC Research Themes


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.


Modelling and Analysis: 

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


Laser Photochemistry and Spectroscopy: 

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


Fire Emissions: 

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


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.