Level 4: Fitted Photospheric Flow Profiles for modelers

coeff_mf.txt and error_coeff_mf.txt have the Legendre fitting coefficients and the fitting uncertainties respectively for the corrected baseline meridional flow on the same latitude-time grid as Level 3 flow profiles. Similar coefficients for solar rotation rate are in coeff_dr.txt and error_coeff_dr.txt. The rotation rate is in Carrington frame of reference. Unit: m/s. These are the coefficients of associated Legendre polynomials with order 1 and degrees 1 to 6 calculated as a function of time. The associated Legendre Polynomials are: x = sind(info.lat(:,1)); x2 = cosd(info.lat(:,1)); p1 = x2; p2 = 2*x.*x2; p3 = .726*(5*x.^2-1).*x2 ; p4 = 1*(7*x.^3-3*x).*x2 ; p5 = .583*(21*x.^4-14*x.^2 +1).*x2 ; p6 = .842*(33*x.^5 - 30*x.^3 + 5*x).*x2 ;