Click to enlarge   Arctic ozone at 30 Oct 2014
 minimum: 216 DU
located at: 79°N 35°E
 ozone loss: 0 kiloton
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Last 8 Days  (show 8 day forecast)

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22 Oct 23 Oct 24 Oct 25 Oct 26 Oct 27 Oct 28 Oct 29 Oct

The total ozone columns, derived in near-real time from observations by the satellite instrument GOME-2 (and SCIAMACHY in past), are used as an input for a data assimilation program which provides global ozone fields for today and a forecast for the coming days.


Depth

Size

Loss

The depth of the ozone hole is the lowest ozone column value in Dobson Units (DU) for latitudes above 30° North. The size of the ozone hole is the area on the globe in million square km of ozone column values below 220 DU. The ozone loss is the amount of ozone in megaton necessary to fill the ozone hole to 220 DU over the whole area


  Ronald van der A, Bas Mijling
© KNMI/TEMIS, 2010