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Characteristics of intra-annual variations of N2O and CH4in the middle atmosphere

Authors
Journal
Journal of Atmospheric and Terrestrial Physics
0021-9169
Publisher
Elsevier
Publication Date
Volume
56
Issue
9
Identifiers
DOI: 10.1016/0021-9169(94)90048-5

Abstract

Abstract Intra-annual variations of the N 2O and CH 4 mixing ratios from the SAMS instrument on the Nimbus-7 satellite are analyzed using special amplitude and phase characteristics. Differences of the N 2O and CH 4 evolution in the annual cycle are noted. Essential interhemispheric differences are noted in the species′ intra-annual evolution. Asymmetry of the annual cycle is characterized by an interval of increase and an interval when the N 2O and CH 4 mixing ratios exceed the local annual mean values.

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