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Proceedings Paper

Relationship between denitrification and hydrate saturations: a comparison of ILAS observations with nucleation models
Author(s): Hitoshi Irie; Yutaka Kondo; Makoto Koike; Hideaki Nakajima; Yasuhiro Sasano
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Paper Abstract

The Improved Limb Atmospheric Spectrometer on board the Advanced Earth Observing Satellite first detected the onset of denitrification in the 1996/1997 Arctic winter stratosphere. Box model calculations along back trajectories are used to estimate the degree of denitrification caused by the formation of nitric acid trihydrate (NAT) particles followed by their growth and sedimentation. The calculated loss of reactive nitrogen explains well the observed loss, identifying the mechanism of large NAT particle formation causing Arctic denitrification.

Paper Details

Date Published: 9 April 2003
PDF: 8 pages
Proc. SPIE 4891, Optical Remote Sensing of the Atmosphere and Clouds III, (9 April 2003); doi: 10.1117/12.466782
Show Author Affiliations
Hitoshi Irie, National Institute for Environmental Studies (Japan)
Yutaka Kondo, Univ. of Tokyo (Japan)
Makoto Koike, Univ. of Tokyo (Japan)
Hideaki Nakajima, National Institute for Environmental Studies (Japan)
Yasuhiro Sasano, National Institute for Environmental Studies (Japan)


Published in SPIE Proceedings Vol. 4891:
Optical Remote Sensing of the Atmosphere and Clouds III
Hung-Lung Huang; Daren Lu; Yasuhiro Sasano, Editor(s)

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