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Dobson unit |
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Dobson unit [′däb·sən ‚yü·nət] (meteorology) The unit of measure for atmospheric ozone; one Dobson unit is equal to 2.7 × 1016ozone molecules per square centimeter, which would be equivalent to a layer of ozone 0.001 centimeter thick, at 1 atmosphere and 0°C. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In 1995, that instrument was no longer working, but balloon-borne instruments measured near-record values below 100 Dobson units in the atmosphere above the South Pole. In the last 2 weeks, the low recorded by researchers using the balloon instruments was 103 Dobson units of ozone -- about 10 percent more than last year at the same time, Oltmans says. 6, the concentration of ozone over parts of Antarctica dropped to 110 Dobson units, beating a record of 121 Dobson units, set in 1987, says NASA's Arlin Krueger. |
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