Developed jointly by CNES and the Indian Space Research Organisation (ISRO), SARAL carries the first Ka-band (35.75 GHz) nadir altimeter, ALtika, and was launched on February 25, 2013, from the Satish Dhawan Space Centre (India). The main scientific objectives of SARAL are to improve our knowledge and understanding of mesoscale ocean dynamics and to provide measurements of ocean surface topography with better accuracy than classical altimeters operating at lower frequencies (such as Poseidon altimeters). SARAL/ALtika's Ka-band signal frequency also allows better observations of ice, rain, coastal zones, wave heights, and land water surfaces, providing expanded capabilities (e.g., for coastal oceanography, glaciology, hydrology and geodesy) beyond traditional altimetry applications.
For more information on the SARAL mission, you can visit the AVISO website.
To access SARAL data, please use your AVISO credentials. If you don't have a "MY AVISO" account, please register [here]. AVISO credentials (login = email address and password) will be sent by email.