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Condensation of HNO3 and HCl in the winter polar stratospheresNitric acid and hydrochloric acid vapors may condense in the winter polar stratospheres. Nitric acid clouds, unlike water ice clouds, would form at the temperatures at which polar stratospheric clouds (PSCs) are observed and would have optical depths of the magnitude observed suggesting that HNO3 is a dominant component of PSCs. ClO, N2O5 and ClNO3 may react on cloud particle surfaces yielding additional HNO3, HCl, and HOCL. In the vicinity of PSCs these reactions could deplete the stratosphere of photochemically active NO(x) species. The sedimentation of PSCs may remove these materials from the stratosphere. The loss of vapor phase NO(x) might allow halogen-based chemistry to create the ozone hole.
Document ID
19870036274
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Toon, Owen B.
(NASA Ames Research Center Moffett Field, CA, United States)
Pinto, Joseph
(NASA Ames Reserch Center Moffett Field, CA, United States)
Hamill, Patrick
(San Jose State University CA, United States)
Turco, Richard P.
(R&D Associates Marina del Rey, CA, United States)
Date Acquired
August 13, 2013
Publication Date
November 1, 1986
Publication Information
Volume: 13
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
87A23548
Funding Number(s)
CONTRACT_GRANT: NASW-4160
Distribution Limits
Public
Copyright
Other

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