Preparing rock compartments  for blasting on a 100 m high coastal cliff (La Réunion, 2006). © BRGM - Jean-Louis Nedellec


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The Standardised Piezometric Level Indicator (SPLI) for water resource management

Piezometric indicators play an essential role in the local management of water resources. However, the diversity of the criteria used to determine them means that it is not possible to obtain a homogeneous view of the impact of a rainfall deficit on the state of free groundwater at the national...

The storm network of the Aquitaine Coastal Observatory

The Aquitaine Coastal Observatory’s storm network was set up to monitor the coastline for harsh erosive events. It currently covers the 350-km coastline of the former Aquitaine region in order to determine the potential impacts of storms, observe their consequences and better understand these...

Vulnerability of coastal aquifers to saline intrusions in Western Normandy

With sea levels rising, it has become necessary to identify the coastal aquifers in Lower Normandy that are most vulnerable to saline intrusions. This phenomenon affects water uses (the supply of water for drinking, agriculture and industry) and natural environments.

“BD Drainage”, a database of agricultural drainage data

The Agricultural Drainage Database (“BD Drainage”), the result of two years of collaboration, is a new interactive mapping tool for drained plots and drainage systems that improves knowledge of ground infiltration patterns and water flow systems at the plot and/or watershed level.

Activities to support management of the ongoing seismo-volcanic crisis in Mayotte

The BRGM is working for the Mayotte Prefecture and the DGPR in response to these exceptional circumstances and to support management of the crisis arising from the earthquake swarm affecting the island since 10 May 2018.

Assessment of the risks raised by aging ex-military workings in the Cherbourg-en-Cotentin area (Manche, N France)

In 2015, the BRGM conducted an expert study requested by the Cherbourg Sub-Prefecture (report n° RP-64852-FR) on a network of former military galleries in the Saint-Sauveur neighbourhood in Cherbourg. Following the inspection, the BRGM defined and implemented a programme to assess the risks raised...

Characterisation of ground movement affecting a city street in Epinal (Vosges, E France)

Since 1930, ground movements have been affecting a slope lying between the rue Louis Blériot and the Canal des Vosges in the city of Epinal. Despite stabilisation work undertaken at numerous points in 2009, further movement was observed in 2010. The BRGM investigation aims to understand what is...

Economic assessment of the impacts of coastal risks arising from climate change in Guadeloupe

The Guadeloupe archipelago, in the centre of the Lesser Antilles, is highly exposed to coastal risks, which are increasing in intensity with sea level rise and climate change. At the same time, the growing concentration of its population and activities along the coast makes the island's economy...


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