The potential effect of oceanic biological degradation on the lifetime of atmospheric CH3Br Academic Article

abstract

• We use a global, coupled, oceanatmosphere box model to examine the potential effect that biological degradation and its distribution can have on the lifetime of atmospheric CH3Br. The results of this study show that both the value of the oceanic degradation rate constant and its geographic distribution are important in determining the calculated atmospheric lifetime. The best estimate of the partial lifetime of atmospheric CH3Br with respect to oceanic loss now comes to 1.81.9 y with a full possible range of 1.13.9 y, which, together with other, nonoceanic losses, yields a total atmospheric lifetime of 0.7 y (0.60.9 y). A subsequent revision of the budget for atmospheric CH3Br indicates that estimated sinks of CH3Br today exceed estimated sources by about 70 Gg y1.

authors

• Yvon-Lewis, Shari

published proceedings

• GEOPHYSICAL RESEARCH LETTERS

altmetric score

• 3

author list (cited authors)

• YvonLewis, S. A., & Butler, J. H.

citation count

• 77

complete list of authors

• YvonLewis, SA||Butler, JH

publication date

• May 1997

publisher

• American Geophysical Union (AGU)  Publisher

published in

• Geophysical Research Letters  Journal

keywords

• 37 Earth Sciences
• 3708 Oceanography

Digital Object Identifier (DOI)

• 10.1029/97GL01090

start page

• 1227

end page

• 1230

volume

• 24

issue

• 10

URL

• http://dx.doi.org/10.1029/97gl01090