Photogrammetry & Special Instrument
Photogrammetry, Advantage & Disadvantage of Photogrammetry, Types of Photogrammetry- Terrestrial Photogrammetry (Horizontal Photograph), Aerial Photogrammetry. Difference Between a Map and An Aerial Photograph, Types of Photographs- Vertical Photograph, Oblique Photograph. Terminologies in Aerial Surveying– Scale of Photograph, Datum Scale of Photograph, Average Scale of Photograph, Flying Height, Crab, Drift. Ground Co-Ordinates & Length of a Line From a vertical Photograph, Relief Displacement, Area Covered By One Photograph, Number of Photograph Required to Cover an Area – 1.When No overlap is Present, 2.When overlap is Present (Longitudinal & Side)- (I). When Total Ground Area (A) is given, (II). When Length & Width are given of total Ground, Exposure Interval, Air Base.
Topics
In special instrument, we detailed discuss about hand leveling, abney level, indian pattern clinometer, ceylon ghat tracer, sextant, site square, mining dial, brunton’s compass, pantagraph, eidograph.
Triangulation (Classification of Triangulation,Triangulation Layout, Well Condition Triangle, Trilateration)
In this triangulation chapter, we detailed discuss about classification of triangulation, triangulation layout, well condition triangle, trilateration, system of framework, objective of triangulation, ETC.