What is meant by latitudes and longitudes in respect of earth?

Answer 1

It is convenient to have a coordinate system for locating objects on the surface of the earth. North-south distances are measured by latitude; a line of latitude represents the intersection of a plane parallel to the earth's equatorial plane with the earth's surface, so is a circle on the surface. The distance from a pole to the equator along a geodesic intersecting such a circle is a measure of the angle that the circle makes with the equatorial plane as seen from the earth's center; it is 0 to 90 degrees north or south. A line of longitude is the intersection of the earth's surface with a plane passing through both poles (as well as the center), and longitude is defined as the angle between such a plane and a similar plane passing through Greenwich, England. Longitudes can be from 0 to 180 degrees east or west. A GPS receiver on or near the earth's surface can give you direct values of the latitude and longitude of any point; they work by measuring time differences between time signals broadcast by a fleet of satellites in earth orbit, and doing some fancy trigonometry.

Answer 2

Latitude is a geographically term. It usually denoted symbolically the Greek letter phi, gives the location of a place on Earth North or South of Equator. Latitude is an angular measurement in degrees ranking from 0 degee at the Equator to 90 degree at the poles. The complementary angle of a latitude is called the colatitude.

Longitude, sometimes denoted by the Greek letter Lambda describes the location of a place on Earth East or West of a North - South line called the prime Meridian. Longitude is given as an angular measurement ranging from 0 degree at the prime Meridian to +180 degree Eastward and -180 degree Westward.

Answer 3

Latitude and longitude are angles that uniquely define points on a sphere. Together, the angles comprise a coordinate scheme that can locate or identify geographic positions on the surfaces of planets such as the earth.
Latitude is defined with respect to an equatorial reference plane. This plane passes through the center C of the sphere, and also contains the great circle representing the equator. The latitude of a point P on the surface is defined as the angle that a straight line, passing through both P and C, subtends with respect to the equatorial plane. If P is above the reference plane, the latitude is positive (or northerly); if P is below the reference plane, the latitude is negative (or southerly). Latitude angles can range up to +90 degrees (or 90 degrees north), and down to -90 degrees (or 90 degrees south). Latitudes of +90 and -90 degrees correspond to the north and south geographic poles on the earth, respectively.




Longitude is defined in terms of meridians, which are half-circles running from pole to pole. A reference meridian, called the prime meridian, is selected, and this forms the reference by which longitudes are defined. On the earth, the prime meridian passes through Greenwich, England; for this reason it is also called the Greenwich meridian. The longitude of a point P on the surface is defined as the angle that the plane containing the meridian passing through P subtends with respect to the plane containing the prime meridian. If P is to the east of the prime meridian, the longitude is positive; if P is to the west of the prime meridian, the longitude is negative. Longitude angles can range up to +180 degrees (180 degrees east), and down to -180 degrees (180 degrees west). The +180 and -180 degree longitude meridians coincide directly opposite the prime meridian.

Answer 4

Latitude is LAteral,, along the Equator... on Equator, it is Zero deg.. (0 along Equator) - Spans South to North.
Longidutinal means ALong the earth axis, parallel to the axis, and is zero deg. at the centre axic line (N - S),, (0 along Prime Meridien) - Spans East to West).

At Equator, it will be La/Lo,, 0/0 deg..
They are used for Time zones, navigation, etc...

Answer 5

Latitudes are the imaginary lines drawn from east to west of earth.
Longitudes are imaginary lines drawn from north to south ....
These lines are used for the measurements of earth's radius,time,circumference etc.