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Geomatics and Measurement in Civil Engineering $7.99   Add to cart
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Geomatics and Measurement in Civil Engineering
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  • Course
  • CVL 352
  • Institution
  • Ryerson University (Ru )

Detailed study of modern surveying instruments such as total stations, GPS, GNSS, and laser scanners. Instruction on methods for collecting, processing, and analyzing spatial data.

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Document information

  • January 14, 2024
  • 7
  • 2021/2022
  • Class notes
  • Professor michael chapman
  • All classes

Subjects

  • geomatics
  • land
  • land surveying
  • survey
  • measure
  • measurement
  • technique
  • civil
  • civil engineering

Written for

  • Ryerson University (Ru )
  • Civil Engineering
  • CVL 352
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LECTURE 2 (CH13)
SHAPE OF EARTH
 Shape is an ellipsoid
 Radius of equator is larger than at poles




o




 Geoid is a surface at msl, perpendicular to direction of gravity
 Ellipsoid is obtained by revolving ellipse around Earth's polar axis
 Ellipsoid:




o




FUNDAMENTALS OF GEODESY
 Deals with measurement and representation of Earth
 Major disciplines
o Precision positioning - satellite geodesy
o Geoid determination - physical geodesy
o Geodynamics - integrated geodesy
 Geodetic surveying: Curves surface of Earth considered by doing calcs on an ellipsoid
 Plane surveying: surface of ellipsoid approximated by a plane
 Geodetic surveys: relative positions of widely spaced monuments
 Control surveys: Establish horizontal and vertical positions

, o Horizontal: determine geodetic latitude, geodetic longitudes
o Vertical: Determine elevations (benchmarks) for a network of reference monuments
o Cutting plane of a meridian: Passes through point P and north/south poles
 Longitude:











REPRESENTATION OF DISTANCES AND ANGLES ON EARTHS SURFACE
 Latitude vs longitude:
o
COORDINATE S




SYSTEMS AND DATUMS
 Coordinate Systems:
o Cartesian

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