Significantly improved ocean surface height in ice-covered water by using aligned ATL07 sea ice reference surface data (leads) if ATL12-estimated heights are considered contaminated by ice; Added ice-free height estimates based on aligned ATL07 sea ice product reference surface data (leads) at both the ocean segment rate and 10-meter rate; Added 10-meter rate standard deviation of htybin (htybin_std_seg); Added the along-track distance from the equator crossing to the first 10 m bin for each ocean segment (xbind_first_dist_x). This allows accurate alignment for ATL13 short segments with other ICESat-2 data products; Added the first photon bias correction for each 10 m along-track bin in each ocean segment (fpb_10m); Added the estimated error in first photon bias correction (fpb_corr_stdev); Added computation of the sea slope bias estimated from the correlation of photon return rate with along-track 10-meter bin averaged surface height (bin_slopebias); Added computation of the sea slope magnitude bias estimated from the covariance of the photon rate and the slope (bin_magslopebias); Excluded photons without a valid tide_ocean from ocean segment processing; Added selective use of ocean scan calibration data to be included or excluded from being processed; Added usage of ATL03 photon quality into ocean photons selection to remove fully saturated pulses; Changed the source for bathymetry to the 2022 GEBCO bathymetry grid; Changed the source for ice concentration (ice_conc) to the high-resolution AMSR2 passive microwave SIC data set.