|Worldwide Echo-Sounding Correction Tables to Convert to Standard Velocity Depths
|Echo-sounding tables (3rd Edition) were prepared by D.J.T. Carter of the Marine Information
and Advisory Service (United Kingdom) for the conversion of raw echo-sounding measurements
of ocean depths to values compensated for variations of sound speed with regional
density profiles. The tables were computerized by Carter and offer standard velocity-depth
corrections for 85 different regions covering the globe. The database consists of
algorithms for determining correction zones by latitude-longitude, and interpolation
tables for each zone.