The chapter starts with an overview of satellite oceanography, its role and use for operational oceanography. Main principles of satellite oceanography techniques are then summarized. We then describe key techniques of radar altimetry, sea surface temperature, ocean colour satellite measurements. This includes measurement principles, data processing issues and the use of these data for operational oceanography. SAR, scatterometry, sea ice and sea surface salinity measurements are also briefly described. Main prospects are given in the conclusion.