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Decimal degrees (DD) is a notation for expressing latitude and longitude geographic coordinates as decimal fractions of a degree. DD are used in many geographic information systems (GIS), web mapping applications such as OpenStreetMap, and GPS devices.
Minutes and seconds range from 0 to 60. For example, the geographic coordinate expressed in degrees-minutes-seconds for New York City is: LATITUDE: 40 degrees, 42 minutes, 51 seconds N LONGITUDE: 74 degrees, 0 minutes, 21 seconds W. But you can also express geographic coordinates in decimal degrees.
Decimal degrees are the latitude and longitude geographic coordinates as decimal fractions. Positive latitudes are north of the equator and less than zero latitudes are south of equator. Positive longitudes are east of the prime meridian and less than zero longitudes are to the west of the prime meridian.
For decimal degrees, simply write out the line of latitude, including decimals, followed by the line of longitude, including decimals. Use positive or negative numbers to indicate direction. For example, if your coordinates are 15.23456 degrees north and 30.67890 degrees West, you would write them as "15.23456, -30.67890."
The DD (Decimal Degree) notation, on the other hand, utilizes the base-10 number system we learned in grade school. People and computers appreciate not having to divide by 60 (or 3600) to know what is being said about location.
Values of latitude and longitude expressed in decimal format rather than in degrees, minutes, and seconds. The decimal degree calculation is dd + mm / 60 + ss / 3600, where dd is the number of whole d.
Definition. Decimal degrees are a way of expressing geographic coordinates in a decimal format instead of using degrees, minutes, and seconds. This format simplifies calculations and enhances the precision of spatial data representation on maps.
Decimal degrees (DD) is a notation for expressing latitude and longitude geographic coordinates as decimal fractions of a degree. DD are used in many geographic information systems (GIS), web mapping applications such as OpenStreetMap, and GPS devices.
Decimal degrees are a way to express latitude and longitude coordinates. They operate as a convenient, simplified alternative to Degrees Minutes Seconds (DMS) notation and are helpful for calculations and digital systems.
How to Convert Degrees, Minutes, Seconds to Decimal. Angles can be expressed as degrees, minutes, and seconds (DMS) or in degree decimal (DD) form. One degree is equal to 60 minutes or 3,600 seconds, and one minute is equal to 60 seconds.