What is Jason Doing?

Jason will orbit the Earth 4,700 times per year surveying ocean currents with radar altimeters and mapping the topography of the ocean. It will also measure waves and the amount of moisture in the air. By doing these things Jason-1 will provide a 5-year view of global ocean topography, increase our understanding of ocean circulation and seasonal changes, improve the forecasting of weather, measure global sea level change and improve ocean tide models.