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The UoW FTIR trace gas analyser: comparison with LoFlo, AGAGE and tank measurements at Cape Grim and GASLAB. In Baseline Atmospheric Program (Australia) 2007-2008, pages 7-22

Report


Type Of Work


  • Report

Abstract


  • Accurate baseline measurements of clean air composition are technically demanding, and benefit from

    advances in instrumentation which improve accuracy and lower the cost and effort of ownership. The

    University of Wollongong FTIR trace gas analyser for determination of atmospheric trace gas concentrations

    has been significantly refined in the past decade since its initial development, providing improved accuracy

    and greater ease of operation. From October 2008 to February 2009 we operated a new analyser at Cape

    Grim, parallel to the CSIRO LoFlo CO2 analyser and AGAGE automated GC system. The FTIR analyser

    drew air from the 70-m tower inlet and operated continuously and autonomously for 110 days measuring 10-

    minute average concentrations of CO2, 13C-CO2, CH4, CO and N2O. Here the measurements are compared

    with LoFlo for CO2, AGAGE for the other gases and isotope ratio mass spectrometry for 13C in CO2. The

    FTIR analyser provided precisions significantly better than those provided by AGAGE for all co-measured

    species, but less than that of LoFlo for CO2. In March and April 2010 we also operated the same analyser at

    CSIRO’s Global Atmospheric Sampling Laboratory (GASLAB), making measurements of 36 standard

    calibration cylinders with well-characterised concentrations. We present the results of this comparison, in

    which the FTIR shows good precision and linearity over all measured concentration ranges. The FTIR

    analyser provides a cost-effective, low maintenance solution for the simultaneous measurement of the target

    species.

UOW Authors


  •   Griffith, David
  •   Deutscher, Nicholas
  •   Krummel, Paul B. (external author)
  •   Fraser, Paul (external author)
  •   van der Schoot, Marcel (external author)
  •   Allison, Colin (external author)

Publication Date


  • 2011

Citation


  • Griffith, D., Deutscher, N., Krummel, P., Fraser, P., van der Schoot, M. & Allison, C. (2011). The UoW FTIR trace gas analyser: comparison with LoFlo, AGAGE and tank measurements at Cape Grim and GASLAB. In Baseline Atmospheric Program (Australia) 2007-2008, pages 7-22. Melbourne: Commonwealth of Australia.

International Standard Book Number (isbn) 13


  • 9781921826511

Place Of Publication


  • Melbourne

Type Of Work


  • Report

Abstract


  • Accurate baseline measurements of clean air composition are technically demanding, and benefit from

    advances in instrumentation which improve accuracy and lower the cost and effort of ownership. The

    University of Wollongong FTIR trace gas analyser for determination of atmospheric trace gas concentrations

    has been significantly refined in the past decade since its initial development, providing improved accuracy

    and greater ease of operation. From October 2008 to February 2009 we operated a new analyser at Cape

    Grim, parallel to the CSIRO LoFlo CO2 analyser and AGAGE automated GC system. The FTIR analyser

    drew air from the 70-m tower inlet and operated continuously and autonomously for 110 days measuring 10-

    minute average concentrations of CO2, 13C-CO2, CH4, CO and N2O. Here the measurements are compared

    with LoFlo for CO2, AGAGE for the other gases and isotope ratio mass spectrometry for 13C in CO2. The

    FTIR analyser provided precisions significantly better than those provided by AGAGE for all co-measured

    species, but less than that of LoFlo for CO2. In March and April 2010 we also operated the same analyser at

    CSIRO’s Global Atmospheric Sampling Laboratory (GASLAB), making measurements of 36 standard

    calibration cylinders with well-characterised concentrations. We present the results of this comparison, in

    which the FTIR shows good precision and linearity over all measured concentration ranges. The FTIR

    analyser provides a cost-effective, low maintenance solution for the simultaneous measurement of the target

    species.

UOW Authors


  •   Griffith, David
  •   Deutscher, Nicholas
  •   Krummel, Paul B. (external author)
  •   Fraser, Paul (external author)
  •   van der Schoot, Marcel (external author)
  •   Allison, Colin (external author)

Publication Date


  • 2011

Citation


  • Griffith, D., Deutscher, N., Krummel, P., Fraser, P., van der Schoot, M. & Allison, C. (2011). The UoW FTIR trace gas analyser: comparison with LoFlo, AGAGE and tank measurements at Cape Grim and GASLAB. In Baseline Atmospheric Program (Australia) 2007-2008, pages 7-22. Melbourne: Commonwealth of Australia.

International Standard Book Number (isbn) 13


  • 9781921826511

Place Of Publication


  • Melbourne