Low-altitude remote sensing and GIS-based analysis of cropmarks: classification of past thermal-contraction-crack polygons in central western Poland

@inproceedings{Ewertowski2017LowaltitudeRS,
  title={Low-altitude remote sensing and GIS-based analysis of cropmarks: classification of past thermal-contraction-crack polygons in central western Poland},
  author={Marek Ewertowski and Andrzej Kijowski and Izabela Szuman and Aleksandra M. Tomczyk and Leszek Kasprzak},
  year={2017}
}
Abstract The examination of low-altitude aerial photographs reveals the presence of more than 400 polygonal nets in central western Poland. Polygons range from 5 to almost 70 m in diameter. Based on the polygons' diameter and intersection angles, we identified seven main types of nets geometry. Based on ground verification, we interpreted them as past thermal-contraction-cracks, filled mostly with sand (i.e. sand-wedge casts). As favourable weather conditions and a proper land cover (i.e… CONTINUE READING
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