Otherwise, crucial effects at low degrees are apt to be missed, as we have shown. We wish to combine reasonable models of chromospheric magnetic fields with the velocity field models described above, in order to assess the relative importance of these effects in the sun, through comparison with GONG data at a later stage of the project. The importance of GONG data at low degrees for this project cannot be overemphasized. At these degrees, the mode probes the deepest into the convective region, and therefore has the highest potential for telling us about turbulence deep inside the convection zone. It appears to us that the interior properties of current numerical models for turbulent solar convection can be best tested against observations through this probe.
Monthly mode frequencies, as estimated now.
Exact requirements will be communicated later.