depth sounding

Instead, a hand line was the only method the Fitzgerald had to take depth soundings.

Meanwhile, Tom laid out further defense plans, then resumed his job of checking depth soundings.

Casey explored the harbor, taking depth soundings from a native canoe.

"True, but according to the depth soundings on the navigation charts, there are several holes that drop over a hundred."

Navy officials said the crew should have cross-checked all the charts for the area and taken more frequent depth soundings.

Before launching the blaster, Tom double-checked his depth soundings.

Sometimes depth soundings are also provided.

Submarine elevation (known as bathymetry) data is generated using ship-mounted depth soundings.

For several years, when fathometers on ships have been taking depth soundings, they often pick up a false bottom before getting the actual depth.

He acknowledges several critical mistakes, including going too fast, taking insufficient depth soundings and failing to cross-check the route with other charts.

It also severely reprimanded the Master, John Wilson, for not having taken depth soundings during his watch.

Depth soundings are unpredictable due to constant change from strong currents, which are rotary rather than reversing.

Nansen left precise instructions about keeping up the scientific work, especially the ocean depth soundings and the tests for the thickness of the ice.

Depth soundings, water temperature studies, water samples, studies of marine life and atmospheric observations were conducted.

It can be accessed by kayak, boat, surfboard, or by swimming; depth soundings are only four feet on its west side.

The subsequent court martial reprimanded Skekel and the master for having neglected to instruct the watch to take frequent depth soundings.

She saw extensive use prior to 1917 surveying the waters along Canada's Atlantic coast, including tidal charting and depth soundings for various ports.

Compounding these navigational errors, the master had not taken any depth soundings (which would have confirmed his location over the Agulhas Bank), before heading north.

Other equipment was installed for making depth soundings, for the collection of sea water and sea-bottom samples, and for meteorological and magnetic observations.

The subsequent court martial reprimanded the Master, Henry Hodder, for failing to take constant depth soundings, and warned him to be more careful in the future.

At the same time, he revolutionized the field of bathymetry and probably saved a large number of lives by making it easier for mariners to take frequent depth soundings.

According to contemporary reports, Shovell initially attempted to determine the fleet's position by astronomical observations and depth soundings before also consulting the sailing masters of his other ships.

The approach of the Northern Party, besides simply going out and looking for land, was a program of through-ice depth soundings to map the edge of the continental shelf.

Recently an outstanding feature of the sea floor topography near Arabika has been revealed from a digital bathymetric map that combines depth soundings and high-resolution marine gravity data.

The team took samples from the beach to determine its ability to bear vehicles and together with depth soundings and other observations large scale models of the beaches were constructed to aid planning.