ABSTRACT
Our primary aim is to extend the body of knowledge presented in the previous chapters to the case when the propagation of the gravity current is into a non-homogeneous ambient. The major interest is in a linear stratification, in particular over a layer whose thickness is larger than that of the current. This type of stratification is considered in this chapter. Density transition over a thin layer, including a sharp (jump) stratification of the ambient, will be considered later.
