Air Photo Seminar 19.09.16

15 volunteers reported present at Martin Green’s farm on Monday 19 September for an aerial photography recognition seminar led by Claire Pinder, Senior Archaeologist at Dorset County Council.

Claire’s seminar covered: the history of aerial photography; the differences between oblique and vertical coverage; the properties of soil marks, crop marks and shadow marks; the stereoscopic viewing of overlapping images to obtain a three dimensional view (a hands-on activity) and the common pitfalls leading to the misinterpretation of aerial photographs – all illustrated with local examples.

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The classroom at the farm proved an ideal locale for such a seminar as we were able to walk into the ceremonial prehistoric landscape in the afternoon and appreciate the limitations and difficulties of identifying and understanding barrows (long and round), enclosures and henges from the ground as opposed to from the air.

 

 

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