The work presents two applications of the formal equations governing the behavior of the low latitude lower ionosphere comprised into a unique set. This set can be used for modeling purposes as well as to help the interpretation of most of the phenomena related to equatorial and low latitude dynamics. Furthermore coupling processes can also be analyzed combining ion transport and ion molecule chemistry to explain the connection between the circulation of the lower and upper portions of the range 100-200 km of altitude. Here the uses and interpretation of these equations to explain some controversial and intriguing questions as to the behavior of phenomena like sporadic E and intermediate layers are explored. It is shown, in particular, that the proposed set of equations is quite convenient in this respect.
Ion model; sporadic E; intermediate layers; low latitude circulation
