Click to enlarge   Arctic ozone at 17 Jan 2021
 minimum: - DU
located at:  
 ozone loss: - kiloton
  Switch to Antarctic view switch view

8 Day Forecast  (show last 8 days)

Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge
18 Jan 19 Jan 20 Jan 21 Jan 22 Jan 23 Jan 24 Jan 25 Jan

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, 2019