An area of 10 km x 20 km is to be surveyed using aerial photogrammetry. Average scale of photograph is 110.000 at ground elevation of 400 m above the datum. Focal length of camera used is 20 cm and size of photographs are 23 cm x 23 cm. The speed of aircraft is 270 kmph. The forward lap in photographs is 70% and side lap is 30%. Determine the flying height, exposure interval and number of photographs required to complete the survey

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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An area of 10 km
x 20 km is to be
surveyed using aerial
photogrammetry.
Average scale of
photograph is 110.000
at ground elevation of
400 m above the datum.
Focal length of camera
used is 20 cm and size
of photographs are 23
cm x 23 cm.
The speed of aircraft is
270 kmph. The forward
lap in photographs is
70% and side lap is
30%.
Determine the flying
height,
exposure
interval and number of
photographs required to
complete the survey
Transcribed Image Text:An area of 10 km x 20 km is to be surveyed using aerial photogrammetry. Average scale of photograph is 110.000 at ground elevation of 400 m above the datum. Focal length of camera used is 20 cm and size of photographs are 23 cm x 23 cm. The speed of aircraft is 270 kmph. The forward lap in photographs is 70% and side lap is 30%. Determine the flying height, exposure interval and number of photographs required to complete the survey
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