Underwater Profiling of Icebergs Using Submersibles

A new method is proposed for iceberg draft measurement and profiling using an unmanned, tethered submersible as an underwater platform equipped with a depth meter, an up-looking echo sounder or an up-looking scanning sonar. Block diagrams and instrumentation for measurement and processing of data are presented. Basic measurement equations and accuracy of measurement are analyzed by two methods which give comparable results.