Approximations Derived from Mode Filtering

Abstract

In this chapter we will give a first preliminary account of the different time-scales that are contained in the system (2.151) to (2.155) of oceanic motions, and of practical ways to eliminate certain modes without substantially modifying those that remain. Note that this chapter is directed to the more advanced reader and not meant to be studied in detail since many of the issues, which are only touched here, are covered in more detail later. References to the more detailed discussions are given in the respective context.