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Potential of a virtual reality environment based on very-high-resolution satellite imagery for structural geology measurements of lava flows

Abstract : Combining very-high-spatial resolution (<1 m) and the ability to provide stereo-pairs for 3D topographic reconstructions, Pleiades satellites offer great potential for large-scale and high-resolution studies in geosciences. In parallel, research-dedicated Virtual Reality (VR) applications are emerging based on high-quality data. We examined the potential of a VR application derived from very-high-resolution Pleiades imagery to infer the orientation of individual flows from kilometers-thick lava piles in the eastern Afar rift area (Stratoïd Formation, Djibouti). Based on Pleiades Digital Elevation Models and orthoimages, we compared two approaches: i) a "classical" method in "Mouse Mode" and ii) a method using the VR application. Both methods provide similar results in facet orientation measurements over the studied transects. Nevertheless, VR enables operator immersion in a very realistic virtual environment combining aerial synoptic and ground-level views. Our studied case shows the potential of those methods to get high-quality and unexpected structural information from an otherwise inaccessible environment.
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Submitted on : Wednesday, June 1, 2022 - 3:06:41 PM
Last modification on : Thursday, June 2, 2022 - 3:39:45 AM

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Marion Jaud, Laurent Geoffroy, François Chauvet, Erwan Durand, François Civet. Potential of a virtual reality environment based on very-high-resolution satellite imagery for structural geology measurements of lava flows. Journal of Structural Geology, Elsevier, 2022, 158, ⟨10.1016/j.jsg.2022.104569⟩. ⟨insu-03684624⟩

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