Imaging the world during dry and wet seasons, global satellite image mosaics at meter-scale resolution

This paper describes the methodology to produce seasonal meter-scale satellite image mosaics enabling detailed mapping projects, land cover and land use studies or ecosystem monitoring in remote locations where in situ measurements are difficult to achieve. In areas with strong seasonal changes in vegetation coverage or extent of water surfaces, it is useful to produce seasonal mosaics to depict these different conditions. Such a mosaic can be realized at a global scale thanks to access to an archive of 400,000 SPOT 6/7 images from 2013 to 2020, acquired at any date of the year, and the design of a specific methodology.