ON THE METHOD FOR SOLVING THE BALANCE EQUATION IN FINITE DIFFERENCE FORM

It is well-knoww that the balance equation, in a sense, is a generalization of the geostrophic relationship and maybe used in low latitudes where the latter is inapplicable. For this reason, in this paper, a brief report concerning several methods for solving the balance equation is presented and their advantages and shortcomings are discussed. Finally, two new methods are proposed. It can be shown that in some cases the two methods are both convergent and Bolin's method may be regarded as a special case of one of those methods.