Global flood alert

A Franco-American cooperation between CNES and NASA to design a digital twin of the Earth system based on the water cycle, FloodDam-DT has delivered an automated service to reliably detect, monitor and forecast floods on a global scale, including an estimate of the associated socio-economic risks.

🟢 All products from the treatment chain at the two study sites (Garonne in France and Ohio in the USA) are available on the open platform hydroweb.next (enter FloodDAM in the search box).

🟢 The FloodML tool generating flood mapping from satellite data is open source on the CNES github.

Estimating coastal flooding

Created by CLS to help coastal areas reduce their vulnerability to rising sea levels, the interactive LITTOSCOPE interface allows users to visualise several scenarios of rising sea levels, with or without a ten-year storm.

The tool also offers an assessment of the impacts (human, economic, heritage, environmental) generated.

🔵 A commercial service, access to Littoscope requires an account and password.

A tool for characterising, monitoring and forecasting drought on a regional scale

An information display and distribution platform developed by InSight, the indicators put in place provide institutions with an objective, up-to-date, spatialized and temporal response to the drought phenomenon.

Developed in New Caledonia, the tool also helps farmers to manage their crops in a rational way, by enabling them to monitor the situation as closely as possible, in line with environmental conditions and changes in them.  InSight is now working on extending the tool to other territories and extending its functionalities.

🔵 EO4DM is a commercial service and requires an account and password.

Supporting the transformation of rural areas

The fruit of the Meo-Climate project, MEOSS offers 3 web mapping interfaces:

• AgriPractice, whose indicators help decision-makers to implement measures to adapt to agricultural soil erosion;
• WaterReserve, which centralises a panel of indicators dedicated to intra- and inter-annual monitoring of water surfaces;
• Meo-GreenEnergy, a tool for detecting and optimising the siting of photovoltaic panels.

🔵 Marketed services, accessible by account and password.

Forecasting cyclonic coastal flooding

Tested in the Bengal delta, the Band-SOS demonstrator is a pre-operational service for a coastal flood forecasting platform based on multispectral satellite images (Copernicus Sentinel-2). In operation since January 2023, the tool is used daily by the Bangladesh Flood Forecasting and Warning Center (FFWC).

Band-SOS provides a real-time forecast of the risk of flooding when a tropical cyclone strikes the coastline, coupled with a map of the vulnerability of populations at risk.

🟢 Free access

Monitoring territorial dynamics

Developed in the Mato-Grosso region (Brazilian Amazon), the Chove-Chuva demonstrator offers a map-based summary of the territorial dynamics observed in relation to the adaptation and mitigation strategies put in place.

Using multisource data, the tool can produce a 'dashboard' of the territorial situation for an area predefined by a user, based on synthetic indicators covering 4 major themes: climate (rainfall), forest cover, water (hydrology) and agriculture (surface area and practices).

🟢 Free access

Hydrometeorological monitoring and forecasting

Operational in French Guiana since June 2023, the SAGUI platform offers a hydrological forecasting service based on space altimetry data to monitor river conditions in real time and help with navigability.

In this interface, the fruit of the OpHySE project, the results are displayed on a global map with a coloured representation of the state of the rivers (flows and flow anomalies - i.e. deviations from normal), and several navigation tabs provide differentiated views of the hydro-meteorological indicators flow, rain and air quality.

🟢 Free access

Satellite surface soil moisture

Developed in Brittany, where geology makes water supply dependent on surface water, BOSCO lays the foundations for a spatial observatory of soil water content.

The interface displays three key pieces of information at very high spatial resolution (plot) and temporal resolution (2-3 days), which are crucial for farmers and water managers: surface moisture (first 5 cm of soil), root water content (one metre deep) and recharge (or water flow) towards the water table.

🟢 Free access

Monitoring irrigated plots and their crop rotation

MEO-Irrigation is a web mapping interface that can be used to extract quantitative indicators to monitor crop irrigation and assess the total surface area irrigated in order to anticipate water requirements and tensions. Working with Sentinel-1 radar and Sentinel-2 optical data at plot level, the system aggregates its data to produce statistics and analyses at commune, canton and even catchment level.

MEO-Irrigation thus completes the MEOSS WaterManagement range of services.

🔵 A commercial service, access requires an account and password.

Creating global monitoring of the load on hydraulic dams

An automated satellite-based solution, the Stock Water platform calculates water volumes and the filling rate of dams. It enables inter-annual comparisons and provides a regional water balance report. It currently displays the results of 110 reservoirs monitored for its development over a three-year period.

The DEM-based bathymetry estimator is published under an open source licence.

🟢 Free access

Assessing the vulnerability of coastal populations and economic activities

Developed for the city of St Louis in Senegal and replicable for other coastal areas, the SCO St Louis interface combines all types of data to estimate the socio-economic vulnerability of coastal cities to the effects of climate change and raise awareness among local players.

The mapping platform can be used to select and combine several layers of information, including historical floods, land use and essential infrastructure, as well as simulations of marine and river flooding according to different IPCC scenarios.

🟢 Free access

Improving resilience to extreme hydro-meteorological events

Developed as part of the FLAude project, FORO uses satellite observation to improve the resilience of areas to the risks of flooding caused by intense run-off.

A genuine decision-making tool, FORO offers interactive maps to pinpoint problem areas and the levers for action. FORO is gradually being rolled out across the 23 departments of the Mediterranean Arc.

🟢 Free access to results for the Aude department