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Monitoring of SoIl moiSture and wateR-flooded Areas for agricuLture and Environment (MISTRALE)
Start date: Jan 1, 2015, End date: Dec 31, 2017 PROJECT  FINISHED 

The MISTRALE project proposes to address soils moisture management in agriculture as well as wetlands or flooded areas monitoring by using Global Navigation Satellite Systems reflected signals (GNSS-R) as a powerful technology for humidity or flooded mapping. The detection by GNSS-R is known to be much more reliable than visible/NIR imagery, and will be usable even under a cloud cover, during the night and even under vegetation (bushes, grass, trees) when passive remote sensing is not applicable. The main objective is to demonstrate a service chain in different use cases : pilot projects will be carried out in soil humidity mapping for agriculture (optimizing the water resource management), wetlands and flooded areas (risk management, flood-prone areas, damages evaluation).In order to meet the objectives, a GNSS-R receiver embedded into a small RPAS (Remotely Piloted Aircraft System) will be developed and implemented into an operational chain to provide the service. GNSS-R technology aims at measuring the GNSS signals reflected on the ground, and, compared to the direct signals, permits a measurement of the soil humidity (from 0 to 100%) as well as flooded extend. The use of GALILEO signals will significantly improve the precision of mapping. The operational system will integrate three main axes of development: adapting the GNSS-R technology for the requirements, making a compact GNSS-R receiver and optimizing an existing RPAS.Using EGNOS and GALILEO in the project will also improve navigation capabilities of small RPAS (<4Kg) and contribute to the development of regulations for their integration in airspace.We assembled a consortium that addresses all aspects of the project : four SME specialized in GNSS receivers, GNSS-R technology, operational applications and dissemination, two labs for RPAS and GNSS-R technology. An advisory board composed of agronomy and environment specialists as well as end users will complete the skills of the consortium.
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