Strong Relationship Between DMS and the Solar Radiation Dose over the Global Surface Ocean
Strong Relationship Between DMS and the Solar Radiation Dose over the Global Surface Ocean
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DOI：
10.1126/science.1133680
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发表时间：
2007-01
期刊：
影响因子：
56.9
通讯作者：
S. Vallina;R. Simó
中科院分区：
文献类型：
--
作者：
S. Vallina;R. Simó
海洋生物源二甲基硫（DMS）是对流层硫的主要天然来源，它可能在远海上空云的形成和对流过程中起着关键作用。通过全球数据分析，我们发现，DMS浓度与太阳辐射剂量在上混合层的公海，无论纬度，浮游生物生物量，或温度高度正相关。这是负反馈可行性的一个必要条件，在负反馈中，光衰减的二甲基硫醚排放反过来又由远洋生态系统接收的光剂量驱动。
Marine biogenic dimethylsulfide (DMS) is the main natural source of tropospheric sulfur, which may play a key role in cloud formation and albedo over the remote ocean. Through a global data analysis, we found that DMS concentrations are highly positively correlated with the solar radiation dose in the upper mixed layer of the open ocean, irrespective of latitude, plankton biomass, or temperature. This is a necessary condition for the feasibility of a negative feedback in which light-attenuating DMS emissions are in turn driven by the light dose received by the pelagic ecosystem.