Orthogonal distance regression of buoy and TOPEX measurements

Orthogonal distance regression of buoy and TOPEX measurements of zero-crossing period, Tz, for the complete TOPEX mission. The slope of the best-fit regression, B, and the intercept, A, are shown with the 95% confidence limits. The cross-correlation coefficient, r, is 0.867. After rejection of 3*rmse outliers, a new best fit can be derived and plotted (not shown), with r improving to 0.901.