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Thalia Toha's avatar

Richard- This is so useful and informative. I particularly appreciate the graph you shared. Hope you're well this week. Cheers, -Thalia

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michael molyneaux's avatar

Richard, NIWA provides measurements which show New Zealand’s seasonal variation of atmospheric Ozone, and that chart also shows what I think are the latest weekly or daily measurements. Please explain why weekly or daily Ozone measurements sometimes vary as much as the seasonal variation. This might be explained by variations of weekly or daily levels of chemical pollutants, dust, and solar radiation in the stratosphere. However, NIWA’s charts for 5 stations in NZ where UV is measured give daily predictions of UVI and these show almost unchanged predictions from one week to the next? This seems inconsistent with the other chart.

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