DBPapers
DOI: 10.5593/SGEM2014/B23/S10.048

USING RADAR DATA IN ARCHAEOLOGICAL SITES

K. Hanzalova, K. Pavelka, I. Hlavacova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-12-4 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 3, 383-390 pp

ABSTRACT
Using a radar data widens the possibilities of archeological prospection extremely. The resolution of the available sensors was quite limited that the detection of huge upstanding monuments or culture landscape was possible. Data of the remote sensing have different purposes of use. Radar data make it possible to monitor the Earth’s surface in any weather. Radar is an active system that generates its own radiation in the microwave part of the electromagnetic spectrum. The radar systems work in the wavelength range distances 0.8 - 100 cm. This interval is divided into sub-bands, called the Ka, Ku, K, X, C, L, P. This paper shows two radar sensors. Sensor PALSAR with fine resolution of up to 7m, which is part of satellite ALOS and sensor SAR, which is part of the German satellites TanDEM-X with resolution of 6 m. In Peru there are many of archeological sites. Some of them are buried under a layer of sand or soil. The layer is usually tens of centimeters thick. For these purposes, we need sensor that can penetrate the soil and provide information about buried archeological sites as well. The archeological site Chankillo is a gut example. About Chankillo was written many articles. Chankillo is located near the small town of Casma in an area that is very rich in interesting historical objects (Sechin). Chankillo is a famous complex with thirteen towers that were used as a solar observatory (Ghezzi and Rugless, 2007 and Pavelka at all, 2013). Chankillo also has residential and gathering areas that we can see on Google Earth (GE). On GE we can also see that near Chankillo are a few rectangular constructions. About these construction sites there is not information. Therefor it is good to use radar data for information about this place. If radar sensors can penetrate the sand and detect the buried objects, it will be good strategic information for archaeologists. A second archeological site is the very famous Nazca desert plain in Peru, where there are well known structures called geoglyphs. The geoglyphs were studied by German mathematician named Maria Reiche (Reiche 1996). But the place near Nasca city called Palpa de Nasca is not only geoglyphs (Pavelka at all, 2013). A lot of other very interesting cultural and archaeological sites can be found in the Nasca area. At CTU, we started a new project that is focused on archaeo-astronomical orientations of important objects in Peru as a part of long term “Nazca” project. In this paper we use the radar data to identify historical object in the Nasca area.

Keywords: radar data, PALSAR, TanDEM-X, archeological site, Chankillo, Nasca, Peru