Analytic System for Landslide by Different Time Photogrammetry. Presumption of Underground Slide Surface by Analysis of Surface Displacement Data of Hachimantai Sumikawa Landslide Area.

The use of Global Positioning System techniques for the continuous monitoring of landslides: application to the Super-Sauze earthflow (Alpes-de-Haute-Provence, France)

“…Techniques of positioning on various time and space scales have made a lot of progress in the last decade, in particular in the field of geomorphological mapping, or in the realization of Digital Elevation Model (DEM) by numerical photogrammetry (Girault, 1992;Miyazawa et al, 2000;Weber and Herrmann, 2000), radar interferometry (Fruneau et al, 1996;Mohr et al, 1998;Singhroy, 1998;Kimura and Yamaguchi, 2000) or by Global Positioning System (Fix and Burt, 1995;Higgitt and Warburton, 1999). These new technologies present attractive and quick solutions, usable in any type of morphological configuration and provide data easily integrable in a Geographical Information System (GIS) format, with resolutions between tens of metres to centimetres.…”

Establishment of deformation and subsidence monitoring baseline in the coastal environment: A case study of University of Lagos

“…Besides, in order to detect and measure the vertical displacement or subsidence of offshore platforms, GPS is considered as the best tool to determine relative position between control stations because GPS allows us to achieve a desirable precision (i.e. +0.1ppm) that is necessary for subsidence monitoring (Leick et al, 2015) Techniques of positioning on various time and space scales have made a lot of progress in the last decade, in particular in the field of geomorphological mapping, or in the realization of Digital Elevation Model (DEM) by numerical photogrammetry (Girault, 1992;Miyazawa et al, 2000;Weber and Herrmann, 2000). As a result of the constantly growing technological progress in all fields of engineering, the increasing demand for higher accuracy, efficiency, and sophistication of the deformation measurements, geodetic engineers have continuously searched for better monitoring techniques and have to refine their methods of deformation analysis.…”