Randa rockfall (1991)
The data collected on this site has been an essential source of knowledge for analyzing the behavior of the Grossgufer massif and managing the associated risks. Preamble In the spring of 1991, the village of Randa in the Mattertal valley, some 5 km downstream of Zermatt, was the scene of one of the largest rockfalls in Europe in the 20th century, along with that of Val Pola (Valtelline, Italy, 1987). In all,… Read More
GUARDAVAL monitoring system
The Canton of Valais natural hazard monitoring portal Guardaval is a comprehensive IT platform for operational and synoptic monitoring of natural hazards (ground instabilities, floods, glacial hazards, meteorological hazards, debris flows, etc.) in the Valais. For over 20 years, CREALP has been maintaining and developing this constantly evolving platform for the State of Valais, integrating more data and functionalities every day. Today, Guardaval integrates more than 70 data sources from different suppliers… Read More
Groundwater monitoring
Monitoring groundwater in the Rhône plain and mountain aquifers In Switzerland, groundwater and springs cover more than 80% of water needs. With an annual production of over 1 millionm3, they are the main source of drinking and industrial water. Long-term monitoring of groundwater quality and groundwater levels is therefore of particular importance. This is all the more the case in Valais where, due to the specific nature of the recharge regime for… Read More
Thermal balance of the water table
Inventory of groundwater use for heating and cooling in Sion, implementation of a temperature monitoring network. Groundwater is an important energy resource. It can be used to generate heat and cooling throughout the year. The groundwater table in the Rhône plain is often the focus of particular attention from planners, due to its high exploitation potential and proximity to the surface. There are around 150 installations in operation in the Sion area…. Read More
GIS Groundwater
Design and implementation of a Groundwater Information and Management System to enhance the value of cantonal subsurface data In close collaboration with the Service de l’environnement(SEN) – Groupe Eaux souterraines du Canton du Valais, CREALP has been involved in setting up a global strategy for groundwater monitoring in the short, medium and long term. This analysis, which considers the various aspects related to groundwater management (quantitative and qualitative monitoring, protection of water… Read More
Cross-border collaboration (Vallon de Réchy)
Optimizing the management and protection of groundwater resources The Réchy project follows on from the STRADA cross-border cooperation project (INTERREG IV Alcotra Italy-Switzerland, 2007-2013), which aimed to understand the behavior of mountain aquifers in different geographical and hydrogeological contexts, under climatic constraints. The aim was to understand the behavior of mountain aquifers in different geographical and hydrogeological contexts under climatic constraints, taking into account the potential effects of climate change, in particular… Read More