Principles of geoinformatics / R.K. Gupta & Subhash Chander.
Material type:
TextPublisher: New Delhi : Jain Brothers, 2014Edition: 5th edDescription: 712 pages : illu. ; 24 cmISBN: 8183600603; 9788183600606Subject(s): Geoinformatics | Surveying
| Levelling | Geoinformatics | SurveyingDDC classification: 526.3 | Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
ST Book Bank
|
GKVK Library | 526.3 GUP (Browse shelf) | Available | STB-1228 |
Includes index.
Section-A : Introduction to surveying -- Linear measurements -- Chain surveying -- Compass surveying -- Levelling -- Contouring -- Plane table surveying -- Theodolite surveying -- Errors and adjustments -- Tachometric surveying -- Curves -- Section-B : Triangulation -- Electronic distance measurements -- Digital theodolite -- Total station -- Global positioning systems (GPS) -- Photogrammetric surveying -- Remote sensing.
Whereas surveying is the determination of relative positions of the objects, levelling determines the relative undulations between any two points and representing them by means if sections or contour plans. Although surveying includes levelling but the basic difference between the two is the determination of position of object on a horizontal and a vertical plane, while levelling includes operations connected with the representation of relative differences in elevation between points on the earth's surface.
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