CONTOUR SURVEYING AND GLOBAL POSITIONING
SYSTEM
5.1 CONTOUR SURVEYING
DEFINITION – CONTOUR – CONTOURING –
CHARACTERISTICS OF CONTOURS – METHODS OF
CONTOURING – DIRECT AND INDIRECT METHODS –
TACHEOMETRIC CONTOURING – INTERPOLATION OF
CONTOURS – DIFFERENT METHODS – CONTOUR
GRADIENT – USES OF CONTOUR PLAN AND MAP –
CALCULATION OF CAPACITY OF RESERVOIR: SIMPLE
PROBLEMS.
5.2 GLOBAL POSITIONING SYSTEM ( GPS )
INTRODUCTION – MAPS – TYPES OF MAPS – VARIOUS
SATELLITES USED BY GPS – DIFFERENTIAL GPS –
FUNDAMENTALS OF GPS – APPLICATION OF GPS – GPS
RECEIVERS – HAND HELD GPS RECEIVER – FUNCTION –
FIELD PROCEDURE – OBSERVATION AND PROCESSING
APPLICATIONS IN CIVIL ENGINEERING.