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Dobson unit
(redirected from Dobson units)

    Also found in: Acronyms, Wikipedia 0.04 sec.
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.


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Satellite- and balloon-borne instruments showed that the amount of ozone over Antarctica bottomed out in early October at a value of 90 to 92 Dobson units, the same as last year.
Ozone hole is smaller than last year by R.M. / Science News
The satellite also showed that ozone concentrations in the worst section of the hole bottomed out at 90 Dobson units, only one-third of what should normally be there this time of year.
Antarctic ozone hole reaches record size by Monastersky, Richard / Science News
The minimum value recorded this year, 112 Dobson units.
Antarctic ozone hole expands in altitude by Monastersky, Richard / Science News
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