But Japanese officials said the depth measurements in 1960 might not have been very precise, so it is possible the Kaiko did break the record.

A team on every caravel dropped lines, taking depth measurements.

Tharp and an assistant set out to plot the depth measurements on huge sheets of paper.

The Endymion was taking depth measurements around Rockall when it drifted away in a haze.

On land, the floor of the rig provides us with a starting altitude, and all depth measurements are calculated relative to it.

The time for the signal to return is recorded and converted to a depth measurement by calculating the speed of sound in water.

The same observer should take Secchi depth measurements in the same manner every time.

She was merely repeating bearings that she had often noticed, along with depth measurements in fathoms.

Special consideration must be given to depth measurement in toe-up laterals (J-profile).

It is used in navigation to avoid underwater obstacles and hitting the ocean bottom, and as a standard point on the submarine for depth measurements.