NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A study of the chemical degradation of ClONO2 in the stratosphereThe flash photolysis-resonance fluorescence system described by Davis et al. (1974) is used to measure the rate constants for the reactions of chlorine nitrate (ClONO2) with stratospheric O(3-P) and OH. Both reactions are examined in a pyrex cell with an internal volume of about 150 cu cm, where the reaction mixture was maintained at 245 K by circulating methanol from a thermostated circulation bath through the outer jacket of the reaction cell. The relative chemical degradation rates as a function of altitude for both reactions are tabulated, which shows that the chemical degradation pathways contribute less than 10% to the total rate of ClONO2 destruction at altitudes less than 30 km. Since the concentration of ClONO2 is calculated to be near its maximum around 25 km and drops off very significantly at higher altitudes, it is concluded that the photochemical decomposition of ClONO2 in the stratosphere is by far the most important degradation path for this molecule.
Document ID
19770038775
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ravishankara, A. R.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Davis, D. D.
(Georgia Institute of Technology Atlanta, Ga., United States)
Smith, G.
(Maryland, University College Park, Md., United States)
Spencer, J.
(California, University Irvine, Calif., United States)
Tesi, G.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: Geophysical Research Letters
Volume: 4
Subject Category
Environment Pollution
Accession Number
77A21627
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available