ERTH 2403 Lecture 6: Lecture 6
26 Apr 2016
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Document Summary
Input of salts is constant [from rivers, volcanoes etc] Salinity not increased=steady state [balanced by the removal of salts] Residence time: ***-amount of elements in the ocean versus rate at which the element is added or removed from the ocean. Non-conservative constituents have a short residence times (moved to a new reservoir) Temperature: most important factor for dissolution of gasses in seawaters. Nitrogen: 78% in atmosphere --48% in ocean ** n more abundant in the ocean than oxygen or carbon dioxide. Ability to buffer changes in acidity and alkalinity. Co2 carbon dioxide and water -- carbonic acid hydrogen ion +carbonic ion carbonate ion calcium ion --calcium carbonate precipitate. An envelope of gases, water vapor, and airborne particles. The atmosphere is thin 80% of its mass is within 15km of the earth"s surface. Atmospheric circulation: a response to differences in the transfer of energy between low and high latitudes.
