oblique air photograph


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oblique air photograph

An air photograph taken with the camera axis directed between the horizontal and vertical planes. Commonly referred to as an "oblique." a. High Oblique. One in which the apparent horizon appears. b. Low Oblique. One in which the apparent horizon does not appear.
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The third section illustrates the potential of the historical photographic record through a simple but accurate quantitative analysis of a 1948 oblique air photograph of the terminuses of two adjacent glaciers, one of which is advancing while the other is retreating.