Tropical sources and sinks of carbonyl sulfide observed from space
نویسندگان
چکیده
منابع مشابه
Sources and sinks of carbonyl sulfide in an agricultural field in the Southern Great Plains.
Net photosynthesis is the largest single flux in the global carbon cycle, but controls over its variability are poorly understood because there is no direct way of measuring it at the ecosystem scale. We report observations of ecosystem carbonyl sulfide (COS) and CO2 fluxes that resolve key gaps in an emerging framework for using concurrent COS and CO2 measurements to quantify terrestrial gross...
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The cycling of the radiatively important gas carbonyl sulfide (OCS) was studied in surface waters of the Sargasso Sea. In August 1999, surface OCS concentrations averaged 8.6 pmol L21, showed minor diel variations, and varied little with depth. An OCS precursor, total dissolved organic sulfur (DOS), was lowest at the surface (40 nmol L21) and increased with depth. The photoproduction rate of OC...
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! ! ! ! Ecole Polytechnique ! ! ! ! 91128 Palaiseau ! ! ! ! France ! ! ! ! Abstract. The optical properties of cold tropical tropopause clouds are examined on a global scale, using two years of space-borne lidar observations from CALIPSO The linear depolarization ratio, color ratio and backscatter signal are analyzed in tropical clouds colder than 200 K in a way similar to recent studies of Pol...
متن کاملTolerance of tropical fruits and a flower to carbonyl sulfide fumigation
The tolerance of ‘Apple’ banana (Musa sp.), avocado (Persea americana Mill.), mango (Mangifera indica L.), papaya (Carica papaya L.), and red ginger (Alpinia purpurata (Vieill.) K. Schum) inflorescences to carbonyl sulfide (COS) fumigation was studied. Commodities were exposed at 25°C to COS at various concentrations (1–6% (v/v) for banana; 1% and 2% for the other fruits for various times from ...
متن کاملIsotopic Fractionation of Sulfur in Carbonyl Sulfide by Carbonyl Sulfide Hydrolase of Thiobacillus thioparus THI115
Carbonyl sulfide (COS) is one of the major sources of stratospheric sulfate aerosols, which affect the global radiation balance and ozone depletion. COS-degrading microorganisms are ubiquitous in soil and important for the global flux of COS. We examined the sulfur isotopic fractionation during the enzymatic degradation of COS by carbonyl sulfide hydrolase (COSase) from Thiobacillus thioparus T...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2015
ISSN: 0094-8276
DOI: 10.1002/2015gl066293