Chapter 5 Bathymetry

Question 1

Bathymetry

Answer 1

is the study of the seafloor topography through mapping.

Question 2

Isobaths

Answer 2

Variations in depth are known as isobaths or depth contours. Ever since ships have been used in and around harbors, there has been a need to know the depth of water.

Question 3

Hydrography

Answer 3

which measures features in the ocean as well as the properties of water itself (currents, tides, and waves), has its basis in bathymetry.

Question 4

String and a lead plumb

Answer 4

Early ocean surveyors used a string and a lead plumb or anything that can be lowered into the water to determine the depth.

Question 5

Sonar

Answer 5

(sound navigation and ranging) uses pulses of sound to determine the depth of water below a ship.

Question 6

Satellite altimetry

Answer 6

using radar to measure the distance from space between the height of the sea surface and the orbit of the satellite