This technique has been superseded by sonic depth finders for measuring mechanically the depth of water beneath a ship, one version of which is the Fathometer (trademark).Field Procedures Manual, National Oceanic and Atmospheric Administration (NOAA), Office of Coast Survey. May 2008. In chapter 7, Glossary, page 252. The record made by such a device is a fathogram.Hydrographic Manual. By Captain Karl B. Jeffers. Publication 20-2, Coast and Geodetic Survey, U. S. Department Of Commerce. Posted by the Hydrographic Society of America. A fathom line or fathom curve, a usually sinuous line on a nautical chart, joins all points having the same depth of water, thereby indicating the contour of the ocean floor.Glossary of Marine Navigation. Page 763. I'd Rather Be Sailing.
this technique has been superseded by sonic depth finders for measuring mechanically the depth of water beneath a ship one version of which is the fathometer (trademark)field procedures manual national oceanic and atmospheric administration (noaa) office of coast survey may 2008 in chapter 7 glossary page 252 the record made by such a device is a fathogramhydrographic manual by captain karl b jeffers publication 20-2 coast and geodetic survey u s department of commerce posted by the hydrographic society of america a fathom line or fathom curve a usually sinuous line on a nautical chart joins all points having the same depth of water thereby indicating the contour of the ocean floorglossary of marine navigation page 763 i'd rather be sailing