Air chemistry lab

Atmospheric sampler

Air and the aerosols can be continually drawn down into the aerosol laboratory and air chemistry laboratory and analysed by automated equipment while the vessel is at sea.

Scientist using a greenhouse gas spectrometer

Scientist using a greenhouse gas spectrometer

On the foremast there is a 6 m high, 150 mm diameter stainless steel air sampling tube with an entry tube on the top that can automatically adjust to wind direction. The air samples travel down the tube into the aerosol laboratory directly below the foremast.

The tubing system and manifolds have been designed to minimise turbulence to maximise the throughput of aerosols. The location of the aerosol laboratory minimises the impact of the sampling system on the aerosols.

The aerosol laboratory contains instruments to monitor aerosols (absorption photometer, atmospheric nephelometer, scanning mobility particle sizer) and radon (radon detector - due to its size it needed to be located in the aerosol laboratory rather than the air chemistry laboratory).

Air from the mast also passes through the aerosol laboratory and goes to the air chemistry laboratory located in the main part of the infrastructure. This is a larger area with greater flexibility for carrying out a wide variety of atmospheric research.

The air chemistry laboratory contains instruments to monitor mono-nitrogen oxides – NOX (NOX monitor), ozone (ozone monitor), and greenhouse gases (greenhouse gas spectrometer).

Updated: 27 November 2014