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Chapter 9 ESC
Earth Space & Science
Term | Definition |
---|---|
Oceanography | Is the multidisciplinary science that studies all elements of the world ocean using the tools and understanding of geology, chemistry, physics, biology, meteorology, and astronomy. |
Salinity | the total amount of solid material dissolved in seawater. |
Thermocline | Rapid change in temperature observed between 980 and 3300 feet. |
Isothermal | Within increasing depths, ocean temperatures do not alter significantly at higher latitudes. |
Density | Mass per unit volume. |
Pycnocline | A layer of water in which the density of the water changes rapidly with depth. |
Isopycnal | connecting points in the ocean where the water has the same density. |
Bathymetry | the science of measuring ocean depths and recording the pattern of the ocean floor's topography. |
Echo sounder | the first devices that utilized sound to measure water. |
Multibeam sonar | create a seabed picture and acquire water data with a 1-meter accuracy. |
Seismic reflection profile | method for interpreting changes in seabed sediment and underlying bedrock. |
Satellite/Radar Altimeters | Send 1000 pulses per second and get a one-inch precision on the distance to the sea surface. |
Deep-sea fans | formed from turbidities and have the same basic shape as an alluvial fan. |
Turbidity current | Submarine canyons are filled with thick combinations of sand, mud, and other material that travel at rapid speeds. |