DOI: 10.1126/science.239.4844.1129. Continuing Worldwide Increase in Tropospheric Methane, 1978 to 1987

Continuing Worldwide Increase in Tropospheric Methane, 1978 to 1987

10.1126/science.239.4844.1129

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

The average worldwide tropospheric mixing ratio of methane has increased by 11% from 1.52 parts per million by volume (ppmv) in January 1978 to 1.684 ppmv in September 1987, for an increment of 0.016 ± 0.001 ppmv per year. Within the limits of our measurements, the global tropospheric mixing ratio for methane over the past decade is consistent either with a linear growth rate of 0.016 ± 0.001 ppmv per year or with a slight lessening of the rate of growth over the past 5 years. No indications were found of an effect of the El Niño-Southern Oscillation-El Chichon events of 1982-83 on total global methane, although severe reductions were reported in the Pacific Northwest during that time period. The growth in tropospheric methane may have increased the water concentration in the stratosphere by as much as 28% since the 1940s and 45% over the past two centuries and thus could have increased the mass of precipitable water available for formation of polar stratospheric clouds.

Bibliography

Blake, D. R., & Rowland, F. S. (1988). Continuing Worldwide Increase in Tropospheric Methane, 1978 to 1987. Science, 239(4844), 1129â1131.

Authors 2

Donald R. Blake (first)
F. Sherwood Rowland (additional)

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Dates

Type	When
Created	18 years, 10 months ago (Oct. 5, 2006, 5:21 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 11:51 a.m.)
Indexed	2 weeks ago (Aug. 12, 2025, 5:31 p.m.)
Issued	37 years, 5 months ago (March 4, 1988)
Published	37 years, 5 months ago (March 4, 1988)
Published Print	37 years, 5 months ago (March 4, 1988)

Funders 0

None

BibTeX

@article{Blake_1988, title={Continuing Worldwide Increase in Tropospheric Methane, 1978 to 1987}, volume={239}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.239.4844.1129}, DOI={10.1126/science.239.4844.1129}, number={4844}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Blake, Donald R. and Rowland, F. Sherwood}, year={1988}, month=mar, pages={1129–1131} }

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