Graduate Thesis Or Dissertation

Parameterization of the oceanic mixed layer use in general circulation models

Public Deposited

Downloadable Content

Download PDF


Attribute NameValues
  • The behavior of different parameterizations of mixed layer physics when used in an oceanic general circulation model (OGCM) having coarse resolution of the upper ocean is examined. The method of parameterization is expected to have an important effect on the resulting sea surface temperature, and hence affect the model's overall fidelity from the viewpoint of air-sea interaction. Tests of three possible parameterizations differ in the manner in which the mixed layer depth is determined: predetermination, diagnostic determination, or prognostic determination. The sea surface temperature is taken to be equivalent to the top OGCM layer temperature in the first two methods, while it is found prognostically in the third method. Results show that for typical forcing cases such as strong insolation, weak surface cooling or weak winds, mixing is insufficient to cause heat transfer between the top two OGCM layers, which occupy the uppermost 500 m of the model. The predetermined and diagnostically determined mixed layer depth parameterizations reduce to a diffusive mixing parameterization, while the prognostic approach satisfactorily models mixed layer depths for all forcing cases. The prognostic method also agrees most closely with the results of a mixed layer model and with observations.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Academic Affiliation
Non-Academic Affiliation
Rights Statement
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.



This work has no parents.

In Collection: