Abstract
A new surface microlayer sampler provides real-time information on interfacial chemical and biological components. The sampler consists of a partly immersed rotating glass cylinder oriented parallel to the direction of travel. The orientation eliminates build-up of surface components ahead of the sampler and minimizes fouling of the sampler by floating debris. The sampler has been towed successfully in the eastern Pacific Ocean and in coastal areas off Oregon and Maine. Coupled with absorbance and fluorescence detectors, the sampler allows measurements of interfacial chemistry and biology to be made concurrently with measurements of hydrographic and atmospheric conditions over a wide range of ocean surface conditions. The sampler also provides volumes of microlayer sample sufficient for analyses of trace components, for physiological measurements, and for laboratory (e.g. film balance) experiments.
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