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| Ozone | Ultraviolet Radiation | Ozone History | Archive |
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Arctic ozone at 21 Nov 2023
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8 Day Forecast (show last 8 days)
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| 22 Nov | 23 Nov | 24 Nov | 25 Nov | 26 Nov | 27 Nov | 28 Nov | 29 Nov |
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 |
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| 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 |
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Ronald van der A, Bas Mijling © KNMI/TEMIS, 2019 |