Two-dimensional modeling of the solar oscillation l-v power spectrum

We describe an algorithm which can accurately model the spatial-temporal l- nu solar oscillation power spectrum over large ranges in frequency (nu) and degree (l). We show how modeling in two dimensions provides a better repre sentation of the observed spectrum than can be obtained with traditional on e-dimensional approaches. The gain comes from using more of the observed si gnal to constrain the model and improved descriptions of the solar backgrou nd spectrum and the signal leakage between different spatial scales. We dis cuss the level of systematic error that can be expected in the solar oscill ation mode frequency data published to date.