NDLI: The diurnal variation of hydrogen, nitrogen, and chlorine radicals: implications for the heterogeneous production of hno2

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The diurnal variation of hydrogen, nitrogen, and chlorine radicals: implications for the heterogeneous production of hno2

Content Provider	NASA Technical Reports Server (NTRS)
Author	Woodbridge, E. L. Gao, R. S. Wofsy, S. C. Gottlieb, E. W. Fahey, D. W. Kohn, D. W. May, R. D. Pfister, L. Stimpfle, R. M. Yue, G. K. Wennberg, P. O. Cohen, R. C. Salawitch, R. J. Webster, C. R. Michelsen, H. A. Keim, E. R. Prather, M. J. Wilson, J. C. Koplow, J. P. Anderson, J. G.
Copyright Year	1994
Description	In situ measurements of hydrogen, nitrogen, and chlorine radicals obtained through sunrise and sunset in the lower stratosphere during SPADE are compared to results from a photochemical model constrained by observed concentrations of radical precursors and environmental conditions. Models allowing for heterogeneous hydrolysis of N205 on sulfate aerosols agree with measured concentrations of NO, NO2, and ClO throughout the day, but fail to account for high concentrations of OH and H02 observed near sunrise and sunset. The morning burst of [OH] and [HO2] coincides with the rise of [NO] from photolysis of N02, suggesting a new source of HO, that photolyzes in the near UV (350 to 400 nm) spectral region. A model that allows for the heterogeneous production of HN02 results in an excellent simulation of the diurnal variations of [OH] and [HO2].
File Size	371900
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970023189
Archival Resource Key	ark:/13960/t1gj4dt9h
Language	English
Publisher Date	1994-11-15
Access Restriction	Open
Subject Keyword	Geophysics Hydrolysis Photochemical Reactions Photolysis Hydrogen Chlorine Diurnal Variations Spectral Bands Stratosphere Peroxides Sulfates Nitrogen Radicals Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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