Review of Short Phrases and Links|
This Review contains major "Latitude"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- Latitude - The distance north or south of the equator measured and expressed in degrees.
- Latitude is the angular distance north or south from the equator to a particular location.
- The latitude is the number of degrees north or south of the Earth's equator.
- Latitude is the term for the distance from the middle of the circle, or, in the case of the Earth, the equator.
- Latitude is a series of concentric circles running parallel to the equator and extending to both poles.
- Ecliptic latitude is measured from 0-- to 90-- north (+) or south (---) of the ecliptic.
- It corresponds approximately to one minute of latitude along any meridian.
- This gave the mariner a measure of Latitude.
- Therefore, only the most overcast of days prevented the navigators from computing the latitude.
- It is the farthest northern latitude at which the sun can appear directly overhead.
- Pound: The U.S. customary unit of force defined as the weight of the standard pound at sea level and at the latitude of 45 o.
- The geographic coordinate system is a latitude and longitude coordinate system.
- A geographical coordinate system is a system that uses latitude and longitude to describe points on the spherical surface of the globe.
- The standard geographic coordinate systems generally give the axes in the order of (latitude, longitude).
- In other words, the same point on the earth---s surface can be described by different latitude and longitude values depending on the reference datum.
- Meridians of longitude and parallels of latitude together form a grid by which any position on the earth's surface can be specified.
- Latitude and longitude values can be based on several different geodetic system s or datum s, the most common being the WGS 84 used by all GPS equipment.
- The parallels of latitude are extended outward from the globe, parallel to the equator, as parallel planes intersecting the cylinder.
- They trace circles on the surface of the Earth, but the only parallel that is a great circle is the equator (latitude=0 degrees).
- Other latitude lines are not great circles, because they are smaller than the equator.
- For planets other than Earth, such as Mars, geographic and geocentric latitude are called "planetographic" and "planetocentric" latitude, respectively.
- Observe that these zones only vaguely correspond to geographic latitude.
- The equator is latitude 0°, and the North Pole and South Pole are latitudes 90°N and 90°S, respectively.
- The Equator has a latitude of 0 degrees, and the North and South Poles are at 90 degrees.
- For the next two centuries, sextants and chronometers were used in combination to provide latitude and longitude information.
- The local hour angle is then added to the Greenwich hour angle to obtain the longitude where the position line passes through the assumed latitude.
- LONGITUDE BY CHRONOMETER - This method uses an assumed latitude and calculates the longitude that a position line crosses it.
- Latitude (--) Lines of latitude appear straight and horizontal in this projection, but are actually circular with different radii.
- Lines of latitude are parallel to the equator, but lines of longitude are curved in such a way that area distortion is minimal.
- For maps of the Earth, a projection consists of 1) a graticule of lines representing parallels of latitude and meridians of longitude or 2) a grid.
- For example, the angle to the North Star for a person at 30° latitude will be about 30°.
- The angle the North Star makes with respect to the horizon is equal to the latitude of the observer.
- The geodetic latitude of a point is the angle between the equatorial plane and a line normal to the reference ellipsoid.
- For example, Baltimore, Maryland (in the USA) has a latitude of 39.3-- North, and a longitude of 76.6-- West ().
- Latitude tells how far north or south of the equator a place is, and longitude tells how far it is east or west of the Greenwich meridian.
- Also from the reference point, an east-west line, following a true parallel of latitude, was projected to the limits of the area.
- For this reason east-west lines, or lines of latitude, are commonly referred to as parallels of latitude, or simply parallels.
- The angle analogous to the latitude in the celestial sphere we call declination.
- Latitude, denoted φ, gives the location of a place on Earth north or south of the equator.
- Altitude of celestial pole = observer's latitude.
- Angle celestial equator (and any star path) makes with horizon = 90 - observer's latitude.
- Altitude: The -latitude- of the celestial body, measuring from the horizon up to the zenith of an observer (90 degrees).
- Lines joining points of the same latitude are called parallels, and they trace concentric circles on the surface of the earth.
- At any point north of the equator the angle from the horizon to the North Star (its altitude) is the same as the latitude from which that angle was taken.
- The length of an arcdegree of latitude (north-south) is about 60 nautical miles, 111 kilometres or 69 statute miles at any latitude.
- Each degree of latitude equals 60 Nautical miles and each minute equals 1 Nautical mile.
- Nautical Mile: The distance of one degree of latitude; approximately 6,076 feet; about 796 longer than the statute mile of 5,280 feet.
- The circles of longitude, the meridians, meet at the geographical poles, with the west-east width of a second being dependent on the latitude.
- All locations with a given latitude are collectively referred to as a circle of latitude.
- The circle will be centered on the celestial object's latitude and longitude.
- Arctic Circle: An imaginary circle on the surface of the earth at 66.5-N latitude, or, 23.5- south of the North Pole.
- The Antarctic Circle is an imaginary circle at latitude 66-30' S, around the south pole.
- Their latitude does not change, and is always zero over the equator.
- The equator divides the planet into a Northern Hemisphere and a Southern Hemisphere, and has a latitude of 0--.
- Lines of latitude are designated from zero to 90 degrees north and south of the Equator.
- We treat the equator as zero degrees of latitude, and a north to south line through Greenwich, UK, as zero degrees of longitude.
- By the definition of geodetic latitude, the length of a minute of arc depends on the radius of curvature.
- Thus, a minute of latitude (measured on the vertical scale of the chart) is used as the definition of one nautical mile.
- The system definition can also include average m and p factors in the project area make a crude computation of latitude and longitude possible.
- Around 400, metallurgy allowed construction of astrolabes graduated in degrees, which replaced the wooden latitude instruments for night use.
- The reference latitude is the equator and each hemisphere is divided into ninety equal portions, each representing one degree of latitude.
- LL2UTM requires the latitude and longitude in decimal degrees and returns the UTM Northing and Easting and the zone information.
- To simplify the digitization of maps, degrees of latitude in the southern hemisphere are often assigned negative values (0 to -90-).
- Continuing along the coast of Cuba, Columbus again tried a quadrant latitude reading on November 21, and again came up with 42 degrees.
- The North Pole has a latitude of 90 degrees North; the South Pole has a latitude of 90 degrees South.
- Then either calculating the distance by multiplying the measured distance by the scaling factor or by counting degrees and minutes of latitude.
- If, for example, the star measured forty degrees above the horizon, the sailor would know that he was at a latitude of approximately forty degrees north.
- The North Star has been historically used by explorers to determine their latitude.
- The sextant is an astronomical instrument that is used to determine latitude for navigation.
- Determining latitude by the sun was a little more difficult since the sun's altitude at noon during the year changes for a given location.
- The quadrant, a quarter circle measuring 0 to 90 degrees marked around its curved edge, was a common instrument to assist in determining latitude.
- Unlike latitude, which has the equator as a natural starting position, there is no natural starting position for longitude.
- As angles are widely used for measurement in navigation, two types of angle are shown on charts; bearings and the longitude and latitude of positions.
- The Prime Meridian and the Equator are the reference planes used to define latitude and longitude.
- This grid system evolved into lines of latitude and longitude.
- In western geodesy the equator, the tropics of Cancer and Capricorn, and then lines of latitude and longitude were used to locate positions on the earth.
- A quadrangle is a four-sided area bounded by two lines (parallels) of latitude and two lines of longitude (meridians) on a map.
- Two additional numeric characters designate the number of minutes of latitude north of the one degree quadrangle boundary latitude.
- Tour Operators > Travel > Exploration > Navigation
- Travel > Exploration > Navigation > Maps
- Encyclopedia of Keywords > Society > Culture > Names
- Encyclopedia of Keywords > Thought
- Glossaries > Glossary of Navigation /
Books about "Latitude" in