GEOG 111 Lecture Notes - Lecture 3: Stereo Photography Techniques, Centimorgan, Geographic Information System
6 Sep 2016
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Document Summary
Active remote sensing: require sending wave energy towards the target and sensing the intensity of the energy that"s reflected back. Aerial photograph: airborne cameras were used to record energy variations on light sensitive films. Conic projection: map projection where an area of earth is projected onto a cone, area becomes distorted the further away from the intersection it is. Cylindric projection: (mercator) conformal projection, show"s true shape, not area especially near the poles. Electronic scanning: device that processes reflected wavelengths beamed directly at target. Equal area: map projection that shows correct proportion of surface area. Geographic information systems: computer software and hardware that works on spatial data. Geomatics: current mapmaking term due to technology being heavily relied on for geography. Map projection: when the geographic grid of earth are transferred from 3d to 2d. Map scale: ratio of drawn map distance with actual ground distance.
