The following analysers were installed in May 2025:
1. Picarro G2401 (CH4, CO2, CO concentrations) with inline drying/sampling unit. Installed by Chris Rennick (NPL) and Sara Defratyka (University of Edinburgh).
2. Picarro G5310 (N2O, CO concentrations) with inline drying/sampling unit. Installed by Chris Rennick (NPL) and Sara Defratyka (University of Edinburgh).
The following analysers are planned for installation in 2025 and 2026
3. Aerodyne dual laser spectrometer for methane isotope ratios. This instrument is capable of very high precision measurements of 13C/12C and D/H following setup by Rennick et al., 2021
4. Medusa GC-MS (gas chromatograph mass spectrometer) for halocarbon, SF6 and NF3 concentrations, from the University of Bristol. See Miller et al., 2008 and Arnold et al., 2012
5. GC-PID (gas chromatograph photo ionisation detector) for H2 concentration, currently being built and tested by the University of Bristol.