Oceanographers commonly calculate large scale surface ocean circulation from satellite sea level information using a concept called 'geostrophy', which describes the relationship between oceanic surface flows and sea level gradient. Conversely, researchers rely on data from in-water current meters to measure smaller scale motion. New research has determined from observational data the length scale at which using sea level height no longer offers a reliable calculation of circulation.

31st January 2017 03:47 AM

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