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2. Decimal degrees - Wikipedia

   en.wikipedia.org/wiki/Decimal_degrees

   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 an alternative to using sexagesimal degrees (degrees, minutes, and ...

3. Geographic coordinate system - Wikipedia

   en.wikipedia.org/wiki/Geographic_coordinate_system

   Longitude lines are perpendicular to and latitude lines are parallel to the Equator. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [1] It is the simplest, oldest and most widely used of the various spatial reference ...

4. Wikipedia:Obtaining geographic coordinates - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Obtaining...

   Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude for the location. User interface in English language. Mapcoordinates: Map to coordinates: Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude and Elevation for the location. User interface in German language. NASA World Wind ...

5. ISO 6709 - Wikipedia

   en.wikipedia.org/wiki/ISO_6709

   ISO 6709, Standard representation of geographic point location by coordinates, is the international standard for representation of latitude, longitude and altitude for geographic point locations. The first edition ( ISO 6709:1983) was developed by ISO/IEC JTC 1 /SC 32. Later the standard was transferred to ISO/TC211, Geographic information ...

6. Geographic coordinate conversion - Wikipedia

   en.wikipedia.org/wiki/Geographic_coordinate...

   Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems . In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [1] A geographic coordinate transformation is a ...

7. Fourth grade - Wikipedia

   en.wikipedia.org/wiki/Fourth_grade

   In Portugal, what North Americans would call the fourth grade ( quarto ano, 4º ano to Portuguese people) is the fourth and last year of the four-year 1º Ciclo do Ensino Básico which also includes the first grade, the second grade, and the third grade. [7] Students take final exams ( provas finais) for Portuguese and Mathematics at the end of ...

8. Latitude - Wikipedia

   en.wikipedia.org/wiki/Latitude

   Latitude is given as an angle that ranges from −90° at the south pole to 90° at the north pole, with 0° at the Equator. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude and longitude are used together as a coordinate pair to specify a location on the surface of the Earth.

9. List of principal and guide meridians and base lines of the ...

   en.wikipedia.org/wiki/List_of_principal_and...

   Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.