Compass Surveying
Compass Surveying, Basic difference between chain and compass surveying, Classification of Traverse- Closed Traverse, Open Traverse. Compass traverse, Meridian– True Meridian, Magnetic meridian, Grid Meridian, Arbitrary Meridian. Bearing, Types of bearing- True Bearing, Magnetic Bearing, Grid Bearing, Arbitrary Bearing. Designation of Bearing or Representation of Bearing- Whole Circle Bearing System, Quadrantal Bearing System.
Fore Bearing And Back Bearing, Relationship Between Fore Bearing And Back Bearing, Include Angle, Magnetic Declination, Type of Declination- Eastern Declination, Western Declination. Variation of Magnetic Declination- Secular Variation, Diurnal Variation, Annual Variation, Irregular Variation. Adjustments Of Angles, Angle of Dip, Local Attraction
Compass, Temporary & Permanent Adjustments Of Compass– Temporary adjustments, Permanent Adjustments. Compass are generally two types- Surveyor Compass, Temporary adjustments of a Surveyor’s Compass- Centring- Levelling. Permanent Adjustment of Surveyor’s compass, Prismatic Compass, Temporary Adjustments of a Prismatic Compass- Centring, Levelling, Focussing, Permanent adjustment of prismatic compass, Difference Between Prismatic Compass and Surveyor Compass
Topics
In fundamentals of surveying (part-1), we details analysis about surveying, classification of survey, principal of surveying, instruments used for various types of measurement.Etc
Geographic Information System, Global Positioning System, Remote Sensing
In this chapter, we detailed discuss about geographic information system, uses of gis, components of gis, global positioning system, remote sensing, type of remote sensing sensor systems.