Observations of methyl nitrate in the lower stratosphere during STRAT: Implications for its gas phase production mechanisms

F. Flocke, E. Atlas, S. Madronich, S. M. Schauffler, K. Aikin, J. J. Margitan, T. P. Bui

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

Methyl nitrate has been measured for the first time in the lower stratosphere at altitudes to 20.5 km during the December 1996 NASA Stratospheric Tracers of Atmospheric Transport (STRAT) deployment. Whole air samples were taken on board the NASA ER2 aircraft and analyzed using gas chromatography/mass spectrometry. Methyl nitrate was present at measurable levels throughout the entire altitude range covered. Taking advantage of the rather simple chemistry in the lower stratosphere compared to the troposphere, and considering the known in-situ photochemical sources for methyl nitrate, the yield of methyl nitrate from the reaction of methyl peroxy radicals with NO was estimated.

Original languageEnglish (US)
Pages (from-to)1891-1894
Number of pages4
JournalGeophysical Research Letters
Volume25
Issue number10
DOIs
StatePublished - Jun 1 1998

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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