DBPapers
DOI: 10.5593/sgem2017/23/S10.007

ARCHAEOLOGICAL SURVEY OF A FIELD FORTIFICATION OF THE THIRTY YEARS’ WAR

M. Hulkova, E. Matouskova, K. Pavelka, T. Janata
Monday 11 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-03-4 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 23, 47-54 pp, DOI: 10.5593/sgem2017/23/S10.007

ABSTRACT

Our research deals with the possibilities of finding and documenting the historical field fortifications of the Thirty Years’ War (1618-1648) in the Czech Republic. The archaeological site that was investigated is located in the western part of the Czech Republic, between Třebel and Vysoké Sedliště villages in Tachov district. Terrestrial laser scanning, winged RPAS (Remotely Piloted Aircraft System) and geophysical instruments GPR (Ground Penetrating Radar) and a magnetometer were used to prospect and document the field fortification. The processed aerial images with a very high geometrical resolution allowed for the discovery of the soil or vegetation marks of the field fortification. Typical RPAS output is an orthophoto in visible or near-infrared range and DSM (Digital Surface Model). Geophysical instruments allow the documentation of objects located beneath the ground surface and can verify possibly detected objects from terrain reconnaissance or from RPAS. Magnetometers enables the detection of subsurface manifestations of the object based on small changes in the magnetic field based on the different magnetism of dissimilar materials. RPAS and geophysical instruments enable the creation of a comprehensive documentation of archaeological objects, which in our case are the positions of the field fortifications. This paper describes methods of data processing and the results. Processed outputs from each technology are drawn into the plan, and the position and run of the field fortifications were detected and verified; in some cases the results aren’t convincing because it was often only a light field fortification such as a trench without any construction parts.

Keywords: RPAS, Digital Surface Model, photogrammetry, GPR