Current ellipse

Current ellipse

A graphic representation of a rotary current in which the velocity of the current at different hours of the tidal cycle is represented by vectors. The cycle may be completed in one half tidal day or in one tidal day according as the tidal current is semi diurnal or diurnal.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Earth science
Category: Mapping science
Company: American Congress on Surveying & Mapping
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Related terms

current ellipse

Weather; Meteorology

A graphic representation (a hodograph) of a rotary current (of a tidal current, or a harmonic component of a tidal current, during a complete tidal cycle) in which the velocity of ...

current ellipse

Earth science; Mapping science

A graphic representation of a rotary current in which the velocity of the current at different hours of the tidal cycle is represented by vectors. The cycle may be completed in ...

ellipse

Mathematics; Geometry

A curved shape that looks like an oval or a circle that is flattened at opposite ends.

ellipse

Aerospace; Space flight

A closed plane curve generated in such a way that the sums of its distances from the two fixed points (the foci) is constant.

ellipse

Science; General science

A member of the class of curves that are intersections of a plane with a cone of revolution. The ellipse is obtained when the plane cuts all the elements of one nappe, and does ...

ellipse

Language; Linguistics

In mathematics, an ellipse (from the Greek for absence) is the locus of points on a plane where the sum of the distances from any point on the curve to two fixed points is ...

subtropical

Earth science; Mapping science

Relating to the warmest region of the Temperate Zones that border on the Torrid Zone.

sky

Earth science; Mapping science

The region above and beyond the Earth, as it is seen looking up from the ground. Sky looks blue during the day and dark at night.

South Pole

Earth science; Mapping science

The most southern point of the Earth. The South Pole is the southern end of the axis on which the Earth rotates.

prime meridian

Earth science; Mapping science

The line of longitude that passes through the town of Greenwich, England, and that measures 0 degree. It is the line from which other longitude lines are measured.

planet

Earth science; Mapping science

A celestial body revolving around a sun in a nearly circular orbit. This definition excludes comets, which have highly elliptical orbits. However, it may also exclude some of ...

area of error

Earth science; Mapping science

A figure within which the true location of a point whose location has been determined by measurement is believed to lie, with stated degree of probability.