DescriptionTotal Ozone measured by Forrest M. Mims III at Geronimo Creek Observatory, Texas (1990-2016).jpg
English: Total ozone (Dobson units) measured at solar noon at Geronimo Creek Observatory since 4 Feb 1990. Measurements conducted only when sun is open and free of clouds. Instruments checked against Dobson 76 and Brewers 009 and 119 at the Mauna Loa Observatory each year since 1992.
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