The CH4 concentration over the Ocean and its possible variation with latitude

D. H. Ehhalt

doi:10.3402/tellusa.v30i2.10329

The CH4 concentration over the Ocean and its possible variation with latitude

Tellus

Volume 30 (1978): Issue 2

By: D. H. Ehhalt

Open Access

|Jan 1978

Abstract

Measurements of the CH₄ concentration over the North Atlantic and the Pacific are presented. The Pacific data indicate a difference of about 0.1 ppmv between Northern and Southern Hemispheres. From this difference and a plausible distribution of CH₄ sources a tropospheric CH₄ lifetime between 3.5 and 11 years is estimated.

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