Physical & Ocean Floor Features 1-24
21 entries in the Physical & Ocean Floor Features compendium.
BathymetryStudy of underwater depth of ocean, river, and lake floors.Kerguelen PlateauA large igneous province in the southern Indian Ocean, produced by the Kerguelen hotspot.ZealandiaA submerged continent in Oceania, mostly beneath the Pacific Ocean.AntarcticPolar region surrounding the South Pole, governed by treaty.Polar regionsEarth's frigid zones surrounding the North and South Poles.SubantarcticSubantarctic region: islands and waters north of Antarctica, south of the Subtropical FronTopographyStudy of land surface forms and features.TerrainThe shape and dimension of Earth's land surface.Contour lineLines joining points of equal value on maps and graphs.ElevationHeight above a reference geoid, distinct from altitude and depth.AltitudeVertical distance measurement with varied definitions across contexts.HypsometryMeasurement of Earth's surface elevation and depth relative to sea level.Digital elevation model3D computer graphics representation of elevation data for terrain.Grade (slope)Grade measures steepness as angle, percentage, or ratio.GeoidThe geoid is the equipotential surface of Earth's gravity.Physical geodesyStudy of Earth's gravity and its potential field for geodesy.Great circleLargest circle on a sphere, shortest path between two points.Meridian (geography)A meridian is a line of longitude connecting the poles.EquatorImaginary line dividing Earth into Northern and Southern Hemispheres.Circle of latitudeImaginary east–west lines parallel to the Equator.Tropic of CancerNorthernmost latitude where the Sun appears directly overhead.
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