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Description:This atlas presents climatological monthly mean maps ofmixed layer depth (MLD) for the World Ocean as well as their deviations from the climatological annual mean. The MLD is computed from climatological monthly mean profiles of potential temperature and potential density based on three different criteria: a temperature change from the ocean surface of 0.5°C, a density change from the ocean surface of 0.125 (sigma units), and a variable density change from the ocean surface corresponding to a temperature change of 0.5°C. The MLD based on the variable density criterion is designed to account for the large variability ofthe coefficient ofthermal expansion that characterizes seawater. The difference between the MLD based on the temperature criterion 0.5°C and the MLD based on the variable density criterion accounts for the effects of salinity on the MLD. Such situations occur in many regions located in equatorial and subpolar latitudes.
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Rights Information:CC0 Public Domain
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Compliance:Library
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