hw3 - 2.011 HW #3 Spring 2006 Due Thursday 3/9/06 Problem...

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Unformatted text preview: 2.011 HW #3 Spring 2006 Due Thursday 3/9/06 Problem 1: If the thermal energy from solar radiation is largely absorbed by the surface layers how can it be carried deeper? Discuss possible physical mechanisms for heat transport in the ocean. Problem 2: Seawater versus freshwater a) Explain why colder water can overlie water at 4 C in a freshwater lake in a gravitationally stable situation. Could such a situation develop in the ocean? b) Explain why the temperature profiles in a freshwater lake will not show temperatures decreasing with depth to values less than 4 C. Problem 3: Practical Salinity is related to the conductivity ratio K 15 (ratio of conductivity of a seawater sample to conductivity of standard seawater [K Cl] solution @15C and 1atm) and determined by the following equation 3/2 S = 0.0080 0.1692 K 15 1/ 2 + 25.3851 K 15 + 14.0941 K 15 5/2 7.0261 K 15 2 + 2.7081 K 15 When K 15 = 1 what is S? Problem 4: Potential Temperature and sigma-t a) Explain whether you expect the potential temperature of (i) air at a height of 5km and (ii) seawater at a depth of 5km to be greater or less than their in situ temperatures....
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hw3 - 2.011 HW #3 Spring 2006 Due Thursday 3/9/06 Problem...

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