Semi-empirical 2-D MHD model of the solar corona and solar wind: Energy flow in the corona

We have developed a semi-empirical 2-D MHD model of the solar corona and so lar wind for which the major data inputs are white light coronagraph data a nd plasma and magnetic field data from the Ulysses spacecraft. With regard to the white light coronagraph data we have used data from Spartan 201-05 t o construct our empirical models of the electron density and magnetic field . We then use conservations laws of mass, momentum and energy to compute es timates of the flow velocity, effective temperature and effective heat flux as a function of radial distance and latitude. We will then compare our em pirical model estimates with that of other theoretical models. An example, is the WKB contribution of Alfven waves to the effective temperature and ef fective heat flux. We have also investigated the importance of electron hea t conduction in the context as past theoretical and empirical models and pr esent a preliminary description of a semi-empirical model of electron heat conduction.