how to read latitude longitude
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Basic Map Reading (Latitude â Longitude) Latitude is angular distance measured north and south of the Equator. The Equator is 0 degrees. As you go north of the equator the Latitude increases all the way up to 90 degrees at the north pole. If you go south of the equator, the Latitude increases all the way up to 90 degrees at the south pole.
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Geographic coordinate system Geographic coordinate system. Longitude lines are perpendicular to and latitude lines are parallel to the equator. A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position, and two or three of the numbers represent a horizontal position.
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Get Latitude and Longitude The latitude is specified by degrees, starting from 0° and ending up with 90° to both sides of the equator, making latitude Northern and Southern. The equator is the line with 0° latitude. The longitude has the symbol of lambda and is another angular coordinate defining the position of a point on a surface of earth.
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- Latitude and longitude. are measured in seconds, minutes, and degrees: 60″ (seconds) = 1′ (minute) 60′ (minutes) = 1° (degree) To determine the latitude and longitude of your facility, you will need a topographic map from United States. Geological Survey (USGS). How to Obtain USGS Maps: USGS maps used for determining latitude and longitude. may be obtained from the USGS distribution center.
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What does longitude and latitude mean? Using these two coordinates, any location on the surface of the earth can be defined. <b>Longitude</b> measures the east-west angle between your location and the Prime Meridian. <br /><br /><b>Latitude</b> measures the north-south angle between your location and the equator.
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Using the Latitude Longitude Coordinate System The latitude longitude coordinate system uses angular measurements to describe a position on the surface of the earth. The system has been in use, with little change, since the astronomer Ptolemy used them in his first world atlas in A.D. 150.
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- The lines of latitude and longitude on a map are not rulers. They are the measurements themselves. Take a plain piece of paper and draw a line across the bottom, from left to right, and put the line one inch up from the bottom edge. You could make believe that the line is your latitude of one inch.
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Calculating longitude length in miles? This is convenient because each minute (1/60th of a degree) is approximately one mile. A degree of longitude is widest at the equator at 69.172 miles (111.321) and gradually shrinks to zero at the poles. At 40° north or south the distance between a degree of longitude is 53 miles (85 km).
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How Do You Read Latitude and Longitude? Quick Answer. Latitude and longitude are read in both degrees and cardinal ordinates. The latitude and longitude of New York City, for example, is 40.6700° N, 73.9400° W. The 40.67 represents the distance in a northern direction that New York City is from the Earth's equator.
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Longitude Longitude at a point may be determined by calculating the time difference between that at its location and Coordinated Universal Time (UTC). Since there are 24 hours in a day and 360 degrees in a circle, the sun moves across the sky at a rate of 15 degrees per hour (360° ÷ 24 hours = 15° per hour). So if the time zone a person is in is three hours ahead of UTC then that person is near 45° longitude (3 hours × 15° per hour = 45°).
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What does longitude and latitude mean? Longitude measures the east-west angle between your location and the Prime Meridian. Latitude measures the north-south angle between your location and the equator. With these two numbers, you can pin the location down to any point on earth, within a few feet.
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Getting Started Degrees and Minutes. The distance between degrees of longitude is about 60 nautical miles at the equator. It is less further north or south as the longitude lines converge towards the poles. Degrees of latitude are always 60 nautical miles apart. At the equator, a grid of 1° of longitude by 1° of latitude covers about 3,600 square miles. For greater precision, degrees are divided into 60 minutes ( ' ) - of distance, not time.
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- The latitude of the North Pole is 90° N, and that of the South Pole is 90° S. The latitude of every point in between must be some degree north or south, from 0° to 90°. One degree of latitude covers about 69 miles (111 kilometers). Longitude is measured in degrees east or west of the prime meridian. This means one half of the world is measured in degrees of east longitude up to 180°, and the other half in degrees of west longitude up to 180°. See the diagrams below to understand latitudes and longitudes better.
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- Using a sextant, measure the angle between the horizon and the North Star. The angle of inclination on the sextant eyepiece will give you the Latitude that you are standing/sailing at. latitude is measured east and west of the Equator. Using a sextant, measure the angle between the horizon and the North Star. <br /><br />The angle of inclination on the sextant eyepiece will give you the Latitude that you are standing/sailing at.latitude is measured east and west of the Equator.
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- Measure latitude first. The lines of latitude will be north and south parallels to your location. Place the zero end of your map ruler on the southern parallel. The next parallel to the north should be touched by the 2 ½ minute end. One edge of the ruler will be marked in minutes and seconds while the other edge is decimal minutes.
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- To find a location on a map by using the latitude and longitude of that location, enter the coordinates in decimal degrees. If the coordinates that you want to enter are in degrees and minutes, convert the number of minutes to a decimal value.o convert Seconds to decimals, divide by 3600. As an example, a latitude of 122 degrees 45 minutes 45 seconds North is equal to 122.7625 degrees North. So the complete formula looks similar the following: http://www.fcc.gov/mb/audio/bickel/DDDMMSS-decimal.html.
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- Longitude is also measured in degrees 0-360 running from Pole to Pole. One hour is equal to 15 degrees thus 1 degree is equal to 4 minutes. The Earth revolves from West to East (no fixed datum) and therefore each of these degrees will become successively opposite the Sun, (the sun highest in the sky) which we call Noon.
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GPS Latitude and Longitude Converter Longitude is measured from the Prime Meridian (which is the longitude that runs through Greenwich, England), with positive values going east (0 to 180) and negative values going west (0 to -180). So, for example, 65 degrees west longitude, 45 degrees north latitude is -65 degrees longitude, +45 degrees latitude.Now that the designations (and reasons for them) are perfectly clear, here is the set of formulae if you need to do this manually.ongitude is measured from the Prime Meridian (which is the longitude that runs through Greenwich, England), with positive values going east (0 to 180) and negative values going west (0 to -180). So, for example, 65 degrees west longitude, 45 degrees north latitude is -65 degrees longitude, +45 degrees latitude.
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How To Read GPS Coordinates 40.689263 -74.044505 (dd) Just to recap, the Decimal Degree (DD) coordinates does not have the letters N or S to signify whether the latitude coordinate is above or below the Equator. Neither does it have the letters W nor E to signify whether the longitude coordinate is to the west or east of the Prime Meridian. This is done through the use of positive and negative numbers.
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- Look for the latitude and longitude. These measurements are often in the corner of the map. Beneath the title you may also notice how far the map covers. For example, a map may say that it's a 7.5 minute map, which means that the area the map shows is 7.5 minutes of latitude and longitude.
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Convert Lat and Long to DMS The numerical values for latitude and longitude in decimal number format are: ° for degrees, ' for minutes and '' for seconds. The common abbreviations of the directions: 1  S: South. 2  W: West. 3  E: East. 4  N: North.
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Latitude and longitude formats DMS + compass direction formats. These formats use degrees, minutes, and seconds. For the following formats: 1  Latitudes range from 0 to 90. 2  Longitudes range from 0 to 180. 3  Use N, S, E or W as either the first or last character, which represents a compass direction North, South, East or West.
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How To Read GPS Coordinates Latitude and Longitude. The GPS system makes use of the geographical lines of latitude and longitude to provide coordinates for a person’s location or a place of interest. Reading and understanding GPS coordinates requires a basic understanding of navigation using the lines of latitude and longitude.
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- Calculation of Distance Represented by Degrees of Latitude and Longitude. Longitude (X axis value): Length of 1 degree of Longitude = cosine (latitude) * length of degree (miles) at equator. 1° Longitude = cos (33.1519) * 69.172 mi = 57.912 miles * 5280 feet · mile-1 = 305,775 ft. we only want a fraction of the total 1 degree:
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Longitude For the adaptation of Sobel's book, see Longitude (TV series). Longitude (/ˈlɒndʒᵻtjuːd/ or /ˈlɒndʒᵻtuːd/, Australian and British also /ˈlɒŋɡᵻtjuːd/), is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ).
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- To measure longitude east or west of the Prime Meridian, there are 180 vertical longitude lines east of the Prime Meridian and 180 vertical longitude lines west of the Prime Meridian, so longitude locations are given as __ degrees east or __ degrees west.