Unit 1
Field astronomy – definitions – solution of an astronomical triangle – co-ordinate systems – time – solar, siderial and standard equation of time – sundial – determination of time, azimuth, latitude and longitude. Map Projection: introduction – methods of projection.
Unit 2
Electronic distance measurement – principle – reduction of E.D.M lines – geodimeter – tellurimeter – total station – global positioning system.
Photogrammetry – terrestrial and aerial photogrammetry – heights and distances fromphotographs – flight planning – elements of stereoscopy – photo mosaic – photo interpretation – applications of photogrammetry.