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On the stratospheric chemistry of hydrogen cyanide
Author(s) -
Kleinböhl Armin,
Toon Geoffrey C.,
Sen Bhaswar,
Blavier JeanFrançois L.,
Weisenstein Debra K.,
Strekowski Rafal S.,
Nicovich J. Michael,
Wine Paul H.,
Wennberg Paul O.
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl026015
Subject(s) - stratosphere , occultation , hydrogen cyanide , atmospheric chemistry , hydrogen , atmospheric sciences , chemistry , analytical chemistry (journal) , environmental science , meteorology , physics , environmental chemistry , inorganic chemistry , astrophysics , ozone , organic chemistry
HCN profiles measured by solar occultation spectrometry during 10 balloon flights of the JPL MkIV instrument are presented. The HCN profiles reveal a compact correlation with stratospheric tracers. Calculations with a 2D‐model using established rate coefficients for the reactions of HCN with OH and O( 1 D) severely underestimate the measured HCN in the middle and upper stratosphere. The use of newly available rate coefficients for these reactions gives reasonable agreement of measured and modeled HCN. An HCN yield of ∼30% from the reaction of CH 3 CN with OH is consistent with the measurements.