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More than in the past, the scientific community now addresses the coupling of processes and of the various time and space scales. In addition to global scale studies, its interest also focuses on regional scales and on the assimilation of observations within models. An evolution of satellite missions is needed to provide the data that these new research fields require.
In this context, the objective of VENuS mission is to demonstrate the feasibility of an alternative solution to the high ground resolution versus high time resolution dilemma by combining, for the first time, high ground and time resolutions. VENuS exploits the new possibilities offered by technological advances, especially regarding micro-satellite capabilities, ground segment and cost reduction.
- description of the VENuS mission on the website of the French National French Agency
- see also VENµS products illustrated using FORMOSAT-2
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Mission Objectives
- investigate and demonstrate the benefit of high repetitivity, high resolution remotely sensed measurements acquired by a super spectral imaging radiometer
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- demonstrate the relevance of high repetitivity, high resolution observation capabilities in the framework of the European Global Monitoring for Environment and Security Program (the " GMES. Program ").
- foster the capability of the scientific community to use such new data sets and to develop innovative methods and applications
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- develop methods to retrieve biophysical parameters over land, lakes and coastal zones
Scientific Applications
- LAND Land cover and land use Monitoring vegetation growth: indicators of vegetation status, phenology Coupling to process models: biomass production, crop yield, precision farming, water balance, surface fluxes (validation, forcing, assimilation)
- WATER Estimation and monitoring of water quality: chlorophyll concentration, sediment loads, turbidity Coupling to process models: primary productivity, hydrodynamics models, ocean circulation
- METHODS Image compositing (cloud screening), atmospheric corrections, bidirectional effects
Gérard Dedieu of CESBIO Karniéli and Arnon of Ben Gurion University are the 2 main leaders of this scientific space mission.
The Israel Space Agency (ISA) will provide the platform and electric propulsion system, the Centre National d'Etudes Spatiales (CNES) will provide the instrument and ground segment. The scientific objectives of the mission have been defined by CESBIO (France), Ben Gurion University of the Negev (Israel) and CNES. The starting point of the mission is the proposal to Rhea tender CNES 1998 (G. Dedieu, F. Cabot).
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