Self- and Inter-Crossover Points of Jasons’ Missions as New Essential Add-on of Satellite Altimetry in the Sub-Arctic Seas and the Southern Ocean

For decades, satellite altimetry is providing reliable data on the sea level, surface currents, tides, planetary and wind waves ice. We propose a potential enhancement of collecting special subsets for better temporal spatial sampling dynamics Sub-Polar seas. show that peculiarities orbits TOPEX/Poseidon Jasons’ missions generate regular grid crossovers which locations are fixed in space time orbit cycles. Two types these specified: self-crossovers (SC) occurring as intersections tracks same inter-crossovers (IC) appearing during phases interleaved when two different satellites crossing. The delay between consecutive measurements high-latitude sites less than 2 h SC 1 IC, thus ground monitoring large-scale currents (including current direction) waves. sets can be regarded networks virtual ocean buoys. Norwegian Sea case study illustrates value seas feasibility building IC other areas World Ocean.