THE NCAR CSM OCEAN MODEL
by
The NCAR Oceanography Section
National Center for Atmospheric Research,1
P.O. Box 3000
Boulder, CO 80307 U.S.A.
Preface______
This technical note documents the ocean component of the NCAR Climate System Model.
The ocean code has been developed from the Modular Ocean Model (version 1.1) which
was developed and maintained at the NOAA Geophysical Fluid Dynamics Laboratory in
Princeton. The person who did the most work to produce and maintain the original GFDL
Ocean Model over a long time was the late Michael Cox. The oceanographic modeling
community owes him a large debt because this is still the standard community ocean
model. As a tribute to Mike Cox, and because the material is still relevant, the first four
sections of this technical note are a straight reproduction from the GFDL Technical Report
that Mike wrote in 1984. The remaining sections document how the NCAR Oceanography
Section members have developed the MOM 1.1 code, and how it is forced, in order to
produce the NCAR CSM Ocean Model.
_________________________________________
1 The National Center for Atmospheric Research is sponsored by the National Science
Foundation.
Table of Contents
Pages
A. Introduction . . . . . . . . . . . . . . . . . . . . . . A1-A2
B. Continuous Equations of the Model . . . . . . . . . . . . . B1-B5
C. Finite Difference Formulation . . . . . . . . . . . . . . C1-C9
D. Integral Constraints . . . . . . . . . . . . . . . . . . D1-D5
E. Equation of State . . . . . . . . . . . . . . . . . . . . E1-E5
F. Parameterization of Mesoscale Eddies . . . . . . . . . . . . F1-F6
G. KPP Boundary Layer Mixing Scheme . . . . . . . . . . . G1-G6
H. Numerical and Coupling Improvements . . . . . . . . . . H1-H10
I. Surface Forcing Fields . . . . . . . . . . . . . . . . . . I1-I7
J. List of Preprocessor Options . . . . . . . . . . . . . . . . J1-J4
K. How to Run the Model . . . . . . . . . . . . . . . . . K1-K4
L. Default Parameter Values . . . . . . . . . . . . . . . . . L1-L2
M. Model Output Conventions . . . . . . . . . . . . . . . M1-M7