From Mean Fluxes to a Detailed Experimental Investigation of the Gas Transfer Processby Bernd Jähne, Scripps Inst of Oceanography, La Jolla, United States,
Document Type: Proceeding Paper
Part of: Air-Water Mass Transfer
Abstract: Three new experimental techniques are discussed which allow a much more detailed investigation of the gas transfer process than any previous techniques. Using heat as a proxy tracer for gases allows to control the flux across the interface and to measure the local transfer rate with a time resolution of several minutes in the field. The two other techniques are based on acid and alkaline gases and fluorescent pH indicators. They are used in wind/wave tunnels to measure the spatial and temporal patterns of the thickness of the mass boundary layer and time series of vertical concentration profiles within the boundary layer.
Subject Headings: Water waves | Dissolved gases | Boundary layers | Sea water | Heat transfer | Probe instruments | Acids | Alkalinity
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