Earth In Space Slide 6

Ocean Basins

Vast depressions holding Earth's oceans.

Bathymetry

Study and measurement of ocean floor depths.

Sonar

Sound waves used to measure ocean depth.

Satellite Altimetry

Measures ocean surface height using satellites.

Continental Slope

Transition zone between continental shelf and ocean.

Hydrothermal Vents

Underwater hot springs that release minerals and heat from the Earth's interior.

Subduction Zones

Regions where one tectonic plate moves under another, leading to geological activity such as earthquakes and volcanic eruptions.

Salinity

The measure of the concentration of salts in water, typically expressed in parts per thousand (ppt). It affects ocean circulation and marine life.

Buffer

A solution that resists changes in pH when acids or bases are added, helping to maintain stable conditions in aquatic environments.

Halocline

Rapid salinity change with depth.

Water Density

Influenced by temperature and salinity.

Oceanic Circulation

Movement of ocean water driven by various factors.

Coriolis Effect

The deflection of moving objects, such as winds and currents, caused by the rotation of the Earth.

Thermal Energy Absorption

Water absorbs significant energy compared to others.

Transition Zones

Areas with rapid changes in temperature, salinity.

Mariana Trench

Deepest ocean point, reaching 11 kilometers.

Ocean Water Composition

Mixture of water, salts, gases, organic matter.