Chapter 5 Bathymetry Flashcards Preview

Oceanography > Chapter 5 Bathymetry > Flashcards

Flashcards in Chapter 5 Bathymetry Deck (6)
Loading flashcards...
1

Bathymetry

is the study of the seafloor topography through mapping.

2

Isobaths

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.

3

Hydrography

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

4

String and a lead plumb

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

5

Sonar

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

6

Satellite altimetry

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