AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use you
Towed IMI-30 sidescan and phase bathymetry data (version 2) for the Guayamas Basin, Gulf of California, collected in 2009 during Atlantis cruise AT15-54 (investigator Dan Lizarralde). Bathymetry value
This data set was acquired with a ship-based BellAerospace BGM-3 Gravimeter during Marcus G. Langseth expedition MGL0903 conducted in 2009 (Chief Scientist: Dr. Robert Dunn). These data files are of T