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Il Nuovo Cimento C

, Volume 13, Issue 5, pp 871–882 | Cite as

Recent improvements on atmospheric CO2 measurements at Mt. Cimone observatory, Italy

  • V. Cundari
  • T. Colombo
  • G. Papini
  • G. Benedicti
  • L. Ciattaglia
Article

Summary

Continuous atmospheric CO2 measurements have been carried out at Mt. Cimone from 1979 up to the present. Omitting here a measurement presentation, in this paper we show the current experimental procedures adopted and NDIR apparatus performances. Quality measurements have been recently improved by introducing an ULTRAMAT-5E (SIEMENS) NDIR analyzer controlled, for operating mode, by computer: the routine precision attained is ±0.1 p.p.m. An interesting performance of the analyzer is its nondetectable sensitivity to water vapour infrared absorption, enabling us also to determine CO2 measurements in wet air. A flask sampling technique and an investigation of the flask deterioration risk, against storing time, are presented. Results of the investigation validate the use of electropolished stainless-steel flasks for high-quality measurements.

PACS 92.60

Meterology 

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Copyright information

© Società Italiana di Fisica 1990

Authors and Affiliations

  • V. Cundari
    • 1
  • T. Colombo
    • 1
  • G. Papini
    • 1
  • G. Benedicti
    • 1
  • L. Ciattaglia
    • 2
  1. 1.Italian Meteorological ServiceMt. Cimone
  2. 2.IFA-CNRRomeItaly

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