Sensitivity of Climate to Diapycnal Diffusivity in the Ocean Part I:

1,97

MB

Equilibrium State. Part II: Global Warming Scenario

50

stron

4723

ID

Massachusetts Institute of Technology

2004

rok

Contents

1. Introduction . 2

2. MIT Earth Model of Intermediate Complexity. 4

2a. Atmospheric Component . 4

2b. Ocean Component 4

2c. Coupling, Spinup and Experimental Setup . 5

3. Scaling Behavior of the Ocean Circulation. 6

3a. Thermohaline Circulation 6

3b. Heat Transport. 8

4. Vertical Heat Balance 10

4a. Control Experiment 10

4b. Sensitivity to Diapycnal Diffusion 11

5. Quasi-Static Freshwater Perturbation 12

6. Conclusions . 13

7. References . 14

Appendix: A Convection-less Model 17

Figures 18-25

Contents

1. Introduction . 27

2. MIT Earth Model of Intermediate Complexity. 29

2a. Atmospheric component 29

2b. Ocean component. 30

2c. Coupling, Spinup and Experiments Setup. 30

3. Behavior of the Thermohaline Circulation . 31

4. Vertical Heat Imbalance 33

4a. Global Warming Experiment. 34

4b. Sensitivity to Diapycnal Diffusion 35

4c. Comparison with CMIP2 . 36

5. Conclusions . 37

6. References . 38

Figures 41-46