measurement of the height of the sea - also known as SSH - or Sea
Surface Height. The areas illustrated in
are lower (indicated in centimeters) than the surrounding areas
provides nutrients from the deep. Areas illustrated in
red show downwelling.
are areas where the sea is higher and the warmer lifeless water
is sinking towards the sea floor. These upwelling
also account for offshore currents - downwellings
spin in a clockwise direction and upwellings
spin counter-clockwise. As fisherman, we want to target areas of
transition between the upwelling
NOTE: Altimetry data takes 24 hours to process so the date of the chart will always be a day behind. Also, altimetry data is not always available on weekends.
To read more about altimetry data and its use by fisheries scientists click here.
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