Vol. 3, No.5, June, 1971
Rawiel, R.F. : Camera Calibration from Star Images.
Singels, C. + = Planning of Photogrammetric Procedures.
Malan, J.J. : The Photographic Response in Autopositive
Material.
Malan, J.J. : Reproduction of Screened Positive Transparencies.
The South African Survey Journal.
Jenkins, D.P. : Ihe Use of an A8 as a Stereocomparator for
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Marriott, C.E. 1969 and Vol. XII, 73, April, 1970.
Scogings, D.A. : Some Non-Topographical Uses of Photogrammetry in
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and December, 1970.
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(iii) Proceedings of the Fourth South African National Survey
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(iv) Symposium.on the Use of Colour Aerial Photography: Salisbury,
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COMMISSION VII. PHOTO INTERPRETATION
RAPPORTEUR: Dr. T.C. Partridge
During the period 1968-1972 the principal applications of airphoto inter-
pretation in South Africa have been in the Earth Sciences, although its
uses in Biological studies have increased significantly.
Photogeological investigations are pre-eminent among all airphoto studies,
but terrain evaluation for engineering, urban and regional development
planning and military purposes relies almost as heavily on the interpret-
ation of aerial photographs. Considerable use is made of photographic
data in regional surveys of natural resource potential at reconnaissance
level, while numerous land-use and population studies have been carried out
through this medium. :
Biological applications include vegetation surveys and plantecological and
conservation studies. Great use is also made of low-alti tude colour
photography in conducting wild life censuses in the Kruger National Park.
With the increasing availability of multi-spectral imagery in South Africa,
considerable research effort is being devoted to an assessment of the
relative advantages of images from limited wave band in a variety of
applications. Such research is an important pre-requisite for the pro-
posed South African participation in the ERTS multi-spectral satellite
programme.
