NHESS Natural Hazards and Earth System Sciences NHESS Nat. Hazards Earth Syst. Sci. 1684-9981 Copernicus Publications Göttingen, Germany 10.5194/nhess-4-187-2004 Design of a geodetic database and associated tools for monitoring rock-slope movements: the example of the top of Randa rockfall scar Jaboyedoff M. 1 2 Ornstein P. 2 Rouiller J.-D. 2 Quanterra, Ch. de la Tour Grise 28, 1007 Lausanne, Switzerland Centre de Recherches sur l’Environnement Alpin, 1950 Sion, Switzerland 15 04 2004 4 2 187 196 Copyright: © 2004 M. Jaboyedoff et al. 2004 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://nhess.copernicus.org/articles/4/187/2004/nhess-4-187-2004.html The full text article is available as a PDF file from https://nhess.copernicus.org/articles/4/187/2004/nhess-4-187-2004.pdf

The need for monitoring slope movements increases with the increasing need for new areas to inhabit and new land management requirements. Rock-slope monitoring implies the use of a database, but also the use of other tools to facilitate the analysis of movements. The experience and the philosophy of monitoring the top of the Randa rockfall scar which is sliding down into the valley near Randa village in Switzerland are presented. The database includes data correction tools, display facilities and information about benchmarks. Tools for analysing the movement acceleration and spatial changes and forecasting movement are also presented. Using the database and its tools it was possible to discriminate errors from critical slope movement. This demonstrates the efficiency of these tools in monitoring the Randa scar.