Temporal and spatial variations of upper tropospheric and lower stratospheric carbon dioxide

T. Nakazawa, K. Miyashita, S. Aoki, M. Tanaka

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92 Citations (Scopus)

Abstract

Systematic collection of air samples was made using commercial jet airliners between Tokyo, Japan and Anchorage, Alaska and between Tokyo and Sydney, Australia in 1984 and 1985. The amplitude of the seasonal CO2 cycle in the upper troposphere was found to be largest in high latitudes of the northern hemisphere but decreased and lagged in phase as the equator was approached. The seasonal cycle of the lower stratospheric CO2 in northern high latitudes showed a minimum concentration early in May and a maximum concentration early in September, with a peak-to-peak amplitude of 2.2 ppmv. Yearly mean CO2 concentrations were lower by 1.4-2.2 ppmv than those in the upper troposphere. -from Authors

Original languageEnglish
Pages (from-to)106-117
Number of pages12
JournalTellus, Series B
Volume43 B
Issue number2
Publication statusPublished - 1991 Jan 1

ASJC Scopus subject areas

  • Atmospheric Science

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