Montagne Pelée, on the French island of Martinique, eastern Caribbean Sea, has been one of the deadliest volcanoes in the world, with 30,000 victims following the 1902 eruption. Thousands of people still live nearby, and this volcano is a strategic “water tank” for Martinique Island, providing 40% of the island’s water supply. Our research takes ad...
The need for predictive models increases as the pressure of global change intensifies. Regional-scale modeling of shallow unconfined aquifers (10-100 m depth) remains challenging, especially in complex basement aquifers. Controlled both by topography and geology, groundwater flows are organized from hillslope to catchment scale. It is particularly ...
Debris flows are a hazard present in many mountain regions. They typically occur when steep mountain creeks flood, transporting sediment, woody debris, and often large boulders. Large boulders can cause jamming through constrictions during debris flow events, affecting the outflow rate of the debris flow, and causing sediment deposition. In 2022, P...
International audience
An hourly hydrological forecasting model (GRP), used for flood forecasting in France, has been enhanced by developing a semi-distributed version (GRPS). This new model addresses some limitations of the original lumped approach by integrating flow observations from upstream stations to improve downstream flood predictions. A comparison of GRP and GR...
With the growing number of sensors technologies, the production of numerous types of data allows finer observations of our environment. Among them, time series represent a valuable heritage by the time spent on their recording and the information they contain. However, the analysis of time series produced by a monitoring network generally requires ...
Common environmental adsorbents (clay minerals, metal-oxides, metal-oxyhydroxides and organic matter) can significantly impact the chemistry of aqueous fluids via adsorption–desorption reactions. The dissolved chemistry of rivers have routinely been used to quantify silicate mineral dissolution rates, which is a key process for removing carbon diox...
International audience
The Step Pyramid of Djoser in Saqqara, Egypt, is considered the oldest of the seven monumental pyramids built about 4,500 years ago. From transdisciplinary analysis, it was discovered that a hydraulic lift may have been used to build the pyramid. Based on our mapping of the nearby watersheds, we show that one of the unexplained massive Saqqara stru...
