Remote Sensing Hydrosphere - North Carolina Science Olympiad
Remote Sensing Hydrosphere - North Carolina Science Olympiad
Remote Sensing Hydrosphere - North Carolina Science Olympiad
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DIVISION C<br />
NC <strong>Science</strong> <strong>Olympiad</strong><br />
Oct 2011-12 Coaches Institute<br />
<strong>Remote</strong> <strong>Sensing</strong><br />
Mapping and <strong>Remote</strong> <strong>Sensing</strong> Basics<br />
∙ Aerial Photography ... focal length and altitude ratios<br />
Discussion of focal length, film/sensor dimensions and relationship to<br />
distances on the ground<br />
Diagram showing focal ratios.<br />
Problem: determine ground frame width of an aerial photo<br />
(use examples of 9x9 negatives)<br />
Problem: determine altitude needed for a scaled photo<br />
(use examples of 9x9 negatives)<br />
Discussion of proportionality relationships and scale ratios for digital sensor<br />
systems with the PIXEL as the smallest unit of data capture<br />
October 8, 2011<br />
Slide 29<br />
rshighberg@bellsouth.net
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