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Temperature dependence of the ClONO2 UV absorption spectrumThe temperature dependence of the ClONO2 absorption spectrum has been measured between 220 and 298 K and between 195 and 430 nm using a diode array spectrometer. The absorption cross sections were determined using both: (1) absolute pressure measurements at 296 K and (2) measurements at various temperatures relative to 296 K using a dual absorption cell arrangement. The temperature dependence of the ClONO2 absorption spectrum shows very broad structure. The amplitude of the temperature dependence relative to that at 296 K is weak at short wavelengths, less than 2% at 215 nm and 220 K, but significant at the wavelengths important in the stratosphere, about 30% at 325 nm and 220 K. Our ClONO2 absorption cross section data are in good general agreement with the previous measurements of Molina and Molina (1979).
Document ID
19950035451
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Burkholder, James B.
(NOAA, Boulder, CO United States)
Talukdar, Ranajit K.
(NOAA, Boulder, CO United States)
Ravishankara, A. R.
(NOAA, Boulder, CO United States)
Date Acquired
August 16, 2013
Publication Date
April 1, 1994
Publication Information
Publication: Geophysical Research Letters
Volume: 21
Issue: 7
ISSN: 0094-8276
Subject Category
Meteorology And Climatology
Accession Number
95A67050
Distribution Limits
Public
Copyright
Other

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