Journal ArticleDOI
Ratio of HNO 3 to NO 2 concentrations in daytime stratosphere
TLDR
The authors reported independent determinations of the [HNO3]/[NO2] ratio which apparently support the measured values2 at levels above 25 km, but which are nearer the calculated values below this level.Abstract:
A RECENT NASA report1 discussed the relative amounts of nitric acid and nitrogen dioxide present in the stratosphere, and pointed out that the values of the ratio [HNO3]/[NO2] measured by Evans et al.2 are, in fact, considerably lower than the values predicted theoretically using the latest values for rate constants and photodissociation coefficients for the appropriate reactions. This letter reports independent determinations of the [HNO3]/[NO2] ratio which apparently support the measured values2 at levels above 25 km, but which are nearer the calculated values below this level.read more
Citations
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A critical analysis of CL0 and 03 in the mid-latitude stratosphere
TL;DR: The modele photochimique de Caltech applique a la destruction catalytique de O 3 avec les radicaux libres HO x, NO x, and ClO x est en bon accord with les resultats de mesures as discussed by the authors.
Journal ArticleDOI
A critical analysis of CLO and O3 in the mid-latitude stratosphere
TL;DR: In the upper stratosphere, an altitude range in which ozone should be in photochemical steady-state, calculated ozone abundances that are derived from a one-dimensional photochemical model with updated chemistry are up to 60% smaller than mean observed values as mentioned in this paper.
Journal ArticleDOI
Validation of nitrogen dioxide results measured by the Limb Infrared Monitor of the Stratosphere (LIMS) Experiment on NIMBUS 7
J. M. Russell,John C. Gille,Ellis E. Remsberg,Larry L. Gordley,Paul L. Bailey,S. Roland Drayson,Herbert Fischer,Andre Girard,John E. Harries,Wayne F. J. Evans +9 more
TL;DR: The validation of results from the nitrogen dioxide channel and the quality of the data are examined in connection with the LIMS experiment which ran from late October 1978 to late May 1979.
Journal ArticleDOI
Accuracy and precision of the nitric acid concentrations determined by the limb infrared monitor of the stratosphere experiment on NIMBUS 7
John C. Gille,James M. Russell,Paul L. Bailey,Ellis E. Remsberg,Larry L. Gordley,Wayne F. J. Evans,Herbert Fischer,B. W. Gandrud,Andre Girard,John E. Harries,Sharon A. Beck +10 more
TL;DR: The results of the NIMBUS 7 IR radiometer have been validated using a set of 15 correlative balloon-borne measurements, obtained with several techniques over a range of season, latitude and pressure between 100 and 20 mbar, the region of largest HNO3 mixing ratio.
Journal ArticleDOI
Active nitrogen partitioning and the nighttime formation of N2O5 in the stratosphere: Simultaneous in situ measurements of NO, NO2, HNO3, O3, and N2O using the BLISS diode laser spectrometer
TL;DR: In this paper, a 24-hour flight of a balloon with a dual-channel balloon UV ozone spectrometer was carried out from Palestine, Texas (32°N) on September 13, 1988, using the Jet Propulsion Laboratory Balloon-Borne Laser In-Situ Sensor (BLISS) instrument.
References
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Journal ArticleDOI
Simultaneous measurements of H2O, NO2 and HNO3 in the daytime stratosphere from 15 to 35 km
TL;DR: In this paper, the authors used Fourier transform spectroscopy in the far infrared with a Michelson interferometer, and helium-cooled bolometric detectors, to study the emission spectrum of the stratosphere at high resolution in the spectral range 5 −45 cm−1.
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Intercomparison of NO, NO2 and HNO3 measurements with photochemical theory
TL;DR: In this article, simultaneous measurements of NO, NO2 and HNOA mixing ratio profiles carried out on the Stratoprobe balloon flight of 22 July 1974 have been simulated with a time-dependent model using the measured temperature and ozone profiles.