equatorial aspect
See Also: projection
[map projections] A planar (or azimuthal) projection with its central point located at the equator.
The Equator is an imaginary circle drawn around a planet (or other astronomical object) at a distance halfway between the poles. The equator divides the planet into a Northern Hemisphere and a Southern Hemisphere.
An equatorial bulge is a bulge which a planet may have around its equator, distorting it into an oblate spheroid. The Earth has an equatorial bulge of 42.
equator - an imaginary line that divides the Earth into Northern and Southern Hemispheres.
Europe - a continent in the Northern Hemisphere. Europe is attached to Asia (and west of it).
The Equatorial Azimuthal Equidistant
Just substituting results for cos θ and sin θ,
ρ = r = αR
x = αR cos φ sin λ / sin α
y = αR sin φ / sin α ...
Equator
References:
Map Projections, a working manual; J.P Snyder USGS Prof Paper 1395 Washington 1987
Map projections used by the USGS; J.P. Snyder USGS Bulletin1532 Washington 1982
Cartographic Projection procedures, User's Manual; Gerald I.
Equator
The equator, at 0°, is the reference point for measuring positions of latitude. Halfway between the poles, it is the longest great circle route, stretching for 24,901.55 miles (40,075 km).
* Equatorial Radius - 1,079 mi. (1,738 km.)
* Polar Radius - 1,077 mi. (1,735 km.)
* Mean Angular Diameter - 31' 07" ...
The equator is a line going around Earth and is halfway between the North and South Poles, it is given a latitude of 0°.
the Equator is 40,075 kilometres long
the Antarctic Circle is 17,662 kilometres long
the South Pole is 0 kilometres long
For obvious reasons, lines of latitude are called parallels.
The equatorial radius of a spheroid, often referred to as "a." Referenced by: WGS84; Figure of the Earth; World Geodetic System; Ellipse; Clairaut's theorem; Geodetic system.
semiminor axis ...
At the equator, and only at the equator the distance represented by one line of longitude is equal to the distance represented by one degree of latitude.
World, equatorial, east-west extent
Geomatics Canada World Map, USGS maps
Robinson
pseudo- cylindrical ...
magnetic equator Lies half way between the north and south magnetic poles.
magnetic inclination The angle of dip of the compass needle as it varies from horizontal at the magnetic equator to vertical at the magnetic poles.
celestial equator
a great circle on the celestial sphere on which any point is equidistant from the celestial poles (the plane of the earth's equator, if extended, would coincide with that of the celestial equator)
celestial meridian ...
6378 km in the equatorial plane
6356 km in the polar plane
Zone System
Reference: UTM zones (Strahler and Strahler 1987, p. 18) ...
Thermal Equator Continuous area on the globe that has the highest surface temperatures because of the presence of the Intertropical Convergence Zone.
1.31477E+08 ft = equatorial circumference of the earth
1.31477E+08 ft / 360 degrees = 365214 ft per degree of Longitude
A single precision number carries six decimal places, so- ...
The equator is a parallel whose latitude is 0 degrees. Digital measures of latitude are positive up to 90 degrees above the equator and negative below.
The only caution is that since I was working with points very close to the equator there are terms in the Northings and Eastings equations which were negligible and have therefore not been included in the calculations.
parallel of latitude A circle, or approximation of a circle, on the surface of the Earth, parallel tot he Equator, and connecting points of equal latitude; a circle of the celestial sphere parallel to the ecliptic, ...
These climates, usually occurring within 5° latitude of the equator, are dominated by the Doldrums Low Pressure System all year round, and thus have no real seasons.
Examples: Singapore
Belem, Brazil.
Although for many mapping applications the earth can be assumed to be a perfect sphere, there is a difference between the distance around the earth between the poles versus the equator.
Starting at the 180° meridian and proceeding east along the equator, each 100 000 metre column is lettered alphabetically from A through Z, with I and O omitted
This lettering system is repeated every 18° of longitude and a similar area in latitude ...
The origin of each UTM zone is the intersection of its central meridian and the equator, and the parameters are applied to this origin to make it convenient to work with making all x and y values positive, or reducing their range.
The UTM latitude coordinate in the northern hemisphere starts at 0 at the equator and increases to 10,000,000m near the north pole. In the southern hemisphere, the coordinates start at 0 near the south pole and increase to 10,00,000 at the equator.
The UTM northing coordinate (the Y coordinate) for a feature is the distance in meters north from the equator to the feature.
The two coordinates of a longitude and latitude refer to the angle in degrees from the equatorial plane of the earth, both up and down. Longitude lines extend from pole to pole giving us an "X" coordinate, Latitude lines give us the "Y" coordinate.
The trouble with this is that in every place except the equator, a degree of latiitude is longer than a degree of latitude -- as you go north or south of the equator, this differnce gets progressively and very significantly greater.
Take to be the unit sphere, so that plane is the equatorial plane. The typical point on the sphere has coordinates . The typical point in the equatorial plane, whose coordinates are , will be called .
Snyder, "I think it is an equatorial stereographic projection, which appears to suit the cartography of the period -- note the eastern coastline of Asia -- but more technically is indicated by the fact that the parallels, most notably the 80th, ...
Now, let's measure the straight-line distance between 2 points on the equator. The equator is an imaginary line that runs around the earth half way between the North and South poles.
UTM zone characters designate 8 degree zones extending north and south from the equator. Eastings are measured from the central meridian (with a 500 km false easting to insure positive coordinates).
Projection parameters provided in the above case: "+proj" (projection type), "+name" (projection name), "+a" (ellipsoid: equatorial radius), "+es" (ellipsoid: eccentricity squared), "+zone" (zone for the area), ...
The SBAS satellites are located in geostationary orbits at a height of about 36,000 kilometers above the Earth's equator.
Often buffers on points that occur near the equator tend to look somewhat decent. However, when performing the same query with data located near the poles, buffers around points will appear elongated.
The perspective of the projection is either polar, equatorial, or obliqueaccording to whether the map's center is at a pole, on the equator, or somewhere else. As part of your laboratory work, you will construct an azimuthal equidistant projection.
Ellipsoids are defined in terms of their equatorial radius (the semi-major axis of the ellipse) and by another parameter, such as the flattening, reciprocal flattening or eccentricity.
Scale is true at the equator or at two standard parallels equidistant from the equator. The projection is often used for marine navigation because all straight lines on the map are lines of constant azimuth.
Mercator ...
The projection is not distorted in the X direction along the equator (since this is a secant of the projection, known as a standard parallel).
Positive values of latitude are north of the equator, negative values to the south. Watch the sign on the longitude, most programs use negative values for west longitude, but a few are opposite.
The satellites are arrayed in 6 orbital planes, inclined 55 degrees to the equator (figure 6.2). They orbit at altitudes of about 12,000 miles each.
Latitude: Angular measurement north and south from the equator
latitude-longitude : A spherical reference system used to measure locations on surface.
Longitude - The angle, measured on the plane of the Equator, between the position of a point on or above the Earth's surface and the reference meridian (i.e. 0o) that passes through Greenwich, England.
Parallel - A horizontal line encircling the Earth at a constant latitude. The Equator is a parallel whose latitude is 0. Measures of latitude range from 0 to 90 north of the Equator and from 0 to -90 to the south.
Eastings are in meters with respect to a central meridian drawn through the center of each grid zone (and given an arbitrary easting of 500,000 meters). In the northern hemisphere, northings are read in meters from the equator (0 meters).
Latitude:
A measure of distance north or south of the equator. One degree of latitude equals approximately 110 kilometers (69 miles).
Leaching:
A process of soil nutrient removal through the erosive movement and chemical action of water.
Latitude
A position's distance north or south of the equator, measured by degrees from zero to 90. One minute of latitude equals one nautical mile.
LCD
See Liquid Crystal Display.
A cylindrical projection of points on a unit sphere centered at consists of extending the line for each point until it intersects a cylinder tangent to the sphere at its equator at a corresponding point .
Latitude - The north-south measurement parallel to the equator.
Layer - A logical set of thematic data, usually organized by subject matter.
LATITUDE
The angular distance north or south between a point on the Earth's surface and the Equator. The distance is measured with reference to an idealised, spheroid-shape of the Earth.
L
Latitude: The angular distance of a location north or south of the equator.
latitude -- angular distance measured on a meridian north or south from the equator.
Longitude: The second component of a spherical coordinate system used to record east-west positions on the earth's surface, measured in degrees as the arc or position of the earth's equator intersected between the meridian of a given place and ...
result from the use of such a non-orthogonal coordinate system. In general, maps made by plotting the Lat/Long coordinates of features have a characteristic "squashed" look due to progressive width distortion in the areas farther from the equator.
The control teams there are responsible for keeping the satellites in position above the Equator, and for ensuring that the onboard systems are fully functional at all times.
75 a projection oriented at right angles to the equator. A transverse cylindric projection uses a meridian of longitude as its central meridian. travelling salesman problem p.
 See also: Map, Surface, Area, Latitude, Projection
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