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From the same journal

Intercomparison of instruments for tropospheric measurements using differential optical absorption spectroscopy

Research output: Contribution to journalArticle

Author(s)

  • C CamyPeyret
  • B Bergqvist
  • B Galle
  • M Carleer
  • C Clerbaux
  • R Colin
  • C Fayt
  • F Goutail
  • M NunesPinharanda
  • J P Pommereau
  • M Hausmann
  • U Platt
  • I Pundt
  • T Rudolph
  • C Hermans
  • P C Simon
  • A C Vandaele
  • J M C Plane
  • Nicola Smith

Department/unit(s)

Publication details

JournalJournal of Atmospheric Chemistry
DatePublished - Jan 1996
Issue number1
Volume23
Number of pages30
Pages (from-to)51-80
Original languageEnglish

Abstract

The results of an intercomparison campaign of eight different long path UV-visible DOAS instruments measuring NO2, O-3 and SO2 concentrations in a moderately polluted urban site are presented. For effective optical path lengths of 230 and 780 m the overall spread of these measurements (+/- 1 sigma) are 5 x 10(10), 6 x 10(10) and 1 x 10(10) molec . cm(-3) (2.0, 2.4, and 0.4 ppb) for these molecules respectively when all instruments used a common set of absorption cross sections. The remaining differences are not completely random and the systematic differences are attributed to the different retrieval methods used for each instrument.

    Research areas

  • NO2, O-3, SO2, intercomparison, differential optical absorption spectroscopy (DOAS), troposphere, NITROGEN-DIOXIDE, CROSS-SECTIONS, UV

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