March 2005 at Lerwick
Data from the Lerwick observatory indicates that low ozone was recorded on 7th March. The daily value day was 257 DU. This event is largely attributable to chemical depletion. The vortex of ozone depleted air was over Lerwick. The previous record chemical ozone loss was reported in 1995-1996, with a depletion of up to 65% at some heights from January to April.
Data from the Lerwick observatory indicates that low ozone was recorded on 7th March. The daily value day was 257 DU. This event is largely attributable to chemical depletion. The vortex of ozone depleted air was over Lerwick. The previous record chemical ozone loss was reported in 1995-1996, with a depletion of up to 65% at some heights from January to April.