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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Carbon disulfide in the North Atlantic and Pacific Oceans
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Carbon disulfide in the North Atlantic and Pacific Oceans

机译:北大西洋和太平洋中的二硫化碳

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摘要

Carbon disulfide (CS_2) was determined in surface waters of the North Atlantic and Pacific Oceans. The mean concentrations (and ranges) of CS_2 in open ocean waters were 13.4 (7.8-26.1)pMS (picomol sulfur per liter) for the North Atlantic and 14.6 (7.2-27.5)pMS for the Pacific. The concentrations in the coastal waters of the North Atlantic averaged 26.4 pMS and ranged from 17.9 to 40.4 pMS. Warm waters generally contained higher levels of CS_2 than did cold waters. All the study areas were found to be supersaturated in CS_2 relative to the atmosphere based on calculations from published CS_2 mixing ratios in the marine boundary layer and their Henry's lawconstants. Sea-to-air fluxes of CS_2 were estimated using exchange velocities for spot and climatological wind speeds. The global oceanic flux extrapolated from this study is 0.18 Tg CS_2 yr~(-1) and in the range 0.13-0.24 Tg CS_2 yr~(-1). It is suggested that microbial processes, photochemical reactions, and phytoplankton activity are potential sources for oceanic CS_2.
机译:在北大西洋和太平洋的地表水中测定了二硫化碳(CS_2)。北大西洋的CS_2的平均浓度(和范围)对于北大西洋是13.4(7.8-26.1)pMS(每公升硫酚硫),对于太平洋是14.6(7.2-27.5)pMS。北大西洋沿岸水域的平均浓度为26.4 pMS,范围为17.9至40.4 pMS。与冷水相比,暖水通常含有更高水平的CS_2。根据已公布的海洋边界层CS_2混合比及其亨利定律的计算结果,发现所有研究区域的CS_2相对于大气而言都是过饱和的。 CS_2的海对空气通量是利用现场和气候风速的交换速度估算的。根据这项研究推断出的全球海洋通量为0.18 Tg CS_2 yr〜(-1),范围为0.13-0.24 Tg CS_2 yr〜(-1)。建议微生物过程,光化学反应和浮游植物活动是海洋CS_2的潜在来源。

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