Click to enlarge   Arctic ozone at 19 May 2012
 minimum: - DU
located at:  
 ozone loss: - kiloton
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8 Day Forecast  (show last 8 days)

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20 May 21 May 22 May 23 May 24 May 25 May 26 May 27 May

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, 2014