Satellite SAR Remote Sensing in Nasca

In 2012, a research project initiated at the British Geological Survey used space-borne Synthetic Aperture Radar (SAR) imagery to investigate the environmental changes affecting the drainage basin of Rio Grande and its tributaries, in Southern Peru. Our research has provided evidence of the effects due to natural and anthropogenic processes on the cultural landscape where the Nasca Civilization flourished centuries ago. This chapter provides an overview of the new insights brought by satellite SAR technology to the understanding of land use and changes in the fertile river valleys, condition of local water resources, and archaeological heritage. Impacts of this research are discussed in relation to the rejuvenation of the water supply system and preservation of cultural identity.