Abstract. Altimeter measurements are corrected for several geophysical parameters in order to access ocean signals of interest, like mesoscale or sub-mesoscale variability. The tide is one the most critical corrections due amplitude tidal elevations and aliasing phenomena high-frequency into lower-frequency band, but internal-tide signatures at surface not yet globally. Internal tides can have ...

Satellite altimetry plays a key role in monitoring changes sea level and climate change. The quality of satellite products is commonly ensured through dedicated calibration. One such calibration with microwave transponders acting as ground reference point targets. It common practice that ranges between the transponder phase center gravity (CoG) are compared against true geometric to determine b...

The RAPID array uses standard observational techniques — moored instruments that measure conductivity, temperature and pressure, as well as bottom pressure recorders — to measure density and pressure gradients across the North Atlantic, from which one can readily calculate the basin overturning circulation [1] and heat transport [2]. Although straightforward to implement, it is less obvious how...

Mesoscale ocean eddies are ubiquitous coherent rotating structures of water with radial scales on the order of 100 kilometers. Eddies play a key role in the transport and mixing of momentum and tracers across the World Ocean. We present a global daily mesoscale ocean eddy dataset that contains ~45 million mesoscale features and 3.3 million eddy trajectories that persist at least two days as ide...

Satellite altimetry has revolutionized the study of the global oceans for the past two decades. Precision altimetry missions like TOPEX/Poseidon, Jason-1, and OSTM/Jason­ 2, complemented by other missions like ERS 1 and 2, ENVISAT, and GFO, have provided unprecedented observations of the ocean surface topography at scales larger than about 200 km and made significant advances in our understandi...