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The RESEARCH project (Remote Sensing techniques for Archaeology; H2020-MSCA-RISE, 2018-2022, grant agreement: 823987) addresses the design and development of a multi-task platform, combining advanced remote sensing technologies with Geographical Information System (GIS) application for mapping and long-term monitoring of Archaeological Heritage (AH) at risk, to identify changes due to climate change and anthropic pressures. The Earth Observation (EO) processing chain will address significant risks affecting AH including soil erosion, land movement and land-use change. The paper describes one of the main goals of RESEARCH project. It refers to a state of the art analysis of Synthetic Aperture Radar (SAR) methods applied to the land movement detection such as landslide and subsidence. Satellite SAR is a rapidly evolving remote sensing technology that offers a high potential for detecting, documenting and monitoring heritage targets. Satellite SAR interferometry (InSAR), Differential Interferometry (DinSAR) and Persistent Scatterer Interferometry (PSI) are different techniques that, depending on the available data and the required accuracy, can be used for deformation monitoring of AH.

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This paper considers the issue of the application of teledection methods in the archaeology of the contemporary past with reference to the concept of retrotopia proposed by Zygmunt Bauman. It is based on one of the components of retrotopia, namely the approach to heritage adopted by Lowenthal (1997). From this perspective, relics of the twentieth-century German settlement in Witkowski Młyn (Western Pomerania) are analysed. In order to identify and document them, ALS data was used and then supplemented with verification field research. As a result, extensive relics of the twentieth-century landscape were documented, including relics of homesteads, orchards and a cemetery. The research presented show that teledection methods cannot prevent retrotopia, but they are new tools for filling in the gaps in knowledge of the contemporary past. Thus, they can lead to a dialogue which, according to Z. Bauman, is the best response to retrotopia.