The objectives of VENµS mission are:
to investigate and demonstrate the benefit of high revisit, high resolution remotely sensed measurements acquired by a superspectral imaging radiometer;
to develop algorithms to exploit time series of data, including geometric and radiometric corrections, and to retrieve surface biophysical parameters;
to foster the capability of the scientific community to use such new datasets and to develop innovative methods and applications.
VENµS mission requirements have been defined to serve scientific studies over land and possibly over coastal and inland waters, with focus on local and regional scale issues. It is expected that VENµS data will be usefull:
to monitor and analyse surface functioning under the influence of environmental factors (climate, topography, soils etc.) as well as human activities;
to study processes and their interactions with natural and human factors;
to develop and validate natural and cultivated ecosystem functioning models and to help the improvement and validation of global carbon cycle models;
to develop remote sensing data assimilation techniques within vegetation and surface flux models;
to define theoretical and practical methods for scale transfer, i.e. up and downscaling;
to help interpret data collected by low spatial resolution sensors;
to develop, validate and implement land surfaces integrated model platforms.
Potential of VENµS reflectance time series: interest of constant observation angles
This property of Venµs images is one key of the enhanced quality of Venµs time series. A short note aims at showing the great interest of constant observation angles for the quality of reflectance time series, thanks to a data-set acquired with FORMOSAT2 satellite.