Extended Data Fig. 2: Comparison between the experimental X-band SAR image and the radar simulation and ground truth of a series of terrestrial analogue pits in Lanzarote, Spain (Lat = 29.165° deg, Lon = −13.454° deg). | Nature Astronomy

Extended Data Fig. 2: Comparison between the experimental X-band SAR image and the radar simulation and ground truth of a series of terrestrial analogue pits in Lanzarote, Spain (Lat = 29.165° deg, Lon = −13.454° deg).

From: Radar evidence of an accessible cave conduit on the Moon below the Mare Tranquillitatis pit

Extended Data Fig. 2

(a) Capella Space X-band (9.65 GHz) Very High Resolution Synthetic Aperture Radar image14. Radar look direction is indicated with a white arrow. (b) 3D radar simulation24 without subsurface Lidar 3D digital model. (c) 3D radar simulation24 with subsurface Lidar 3D digital model. The red lines identify the radar response originating from the conduit interior. (d) 3D Lidar scans and drone photogrammetry of the surface (transparency) and the subsurface14. Color coding from red to green indicate a progressive increase of the points depth. (e) Superimposition of a detail of the Synthetic Aperture Radar image (Jameo Redondo and Cumplido) with the 3D Lidar scans and drone photogrammetry of the surface and the subsurface14.

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