Object: To record world geographic coordinates system/angular coordinates of points in the field by GPS.
Apparatus:
Global positioning system device.
Introduction:
A geographic coordinate system is a coordinate system 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; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude, and elevation. To specify a location on a plane requires a map projection.
Fig: World geographic coordinates system/angular coordinates of point by GPS (Garmin)
Procedure:
- Insert the batteries and power on the GPS
- Double Click on the Menu button
- For Mark, the way point go to the setup.
- Move to tracks. In track select-(record, show on map, more often)
- Double click on the back button
- Go to the track manager in main menu
- Select current track
- Click on clear current track and click on yes.
- Now go to way point manager and select created way point.
- Now GPS will show world geographic coordinates system/angular coordinates of that point.
- Finally note the readings in note book.
- Take the world geographic coordinates system/angular coordinates of each point and record it in note book.
