Air-Sea Gas Exchange in the Sea Ice Area
Section outline
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Occasionally, sea ice area cannot be observed because they are far from Japan and are cold. For this reason, some indoor experiments may be conducted focusing on specific phenomena. We froe the seawater in the low temperature room and measured CO2 concentration (CO2) continuously. The figure above is the result we investigated the effect of differences such as room temperature, salinity, on the CO2 release of the air from the sea ice.
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There is snow on the actual sea ice area. Although the air exchange in the sea ice area involves the exchange of air between sea ice and the air through the brine channels present in the sea ice (shown on the left), the presence of snow has been found to reduce the exchange efficiency. The figure above shows how the thickness and nature (density) of the snow change the efficiency of the air exchange between sea ice and the atmosphere.
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