THE KALIDEOS DATABASES: A FRAMEWORK FOR THE SCIENTIFIC ANALYSIS AND EXPLOITATION OF SENTINEL-2 IMAGES

摘要

The Kalideos programme results from an analysisrncarried out by CNES since several years about thernscientific community access conditions to Earthrnobservation data. In order to answer the financial andrntechnical difficulties met by researchers when usingrnthese data, CNES has decided to develop and maintainrndatabases gathering satellite imagery together withrnexogenous data on dedicated areas. These databases arernthen put at the disposal of researchers provided thernlatter give feedback about the work carried out.rnThis paper details the general principle governing thernsetting up of the Kalideos databases. The four of themrnwhich are currently operational are then presented,rnbefore describing in each case a target applicationrnshowing pre-operational or operational results thatrncould benefit at short notice of the availability ofrnSentinel-2 imagery.