Atmospheric carbonyl sulfide exchange in bog microcosms

Details Atmospheric carbonyl sulfide exchange in bog microcosms Atmospheric carbonyl sulfide exchange in bog microcosms

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..129f&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 2, p. 129-132.

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15

Atmospheric Composition, Carbonyl Compounds, Chemical Analysis, Marshlands, Sulfides, Troposphere, Global Air Pollution, Laser Applications, Semiconductor Diodes, Semiconductor Lasers, Tunable Lasers

Scientific paper

Measurements of carbonyl sulfide (OCS) fluxes were carried out on bog microcosms using chamber sampling and tunable diode laser analysis. Intact bog microcosms removed ambient levels of OCS in the light and dark with rates from -2.4 to -8.1 ng S/min/sq m. Peat and peat plus mosses emitted OCS in the light with rates of 17.4 and 10.9 ng S/min/sq m, respectively. In the dark, the mosses apparently removed OCS at a rate equivalent to the peat emissions. A 3D numerical tracer model using this data indicated that boreal bog ecosystems remove at most 1 percent of ambient OCS, not sufficient to account for an observed OCS depletion in boreal air masses.

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