Total column ozone
TCO (Total Column Ozone): a measurement of the total amount of atmospheric ozone in a given column. Usually, TCO is measured in Dobson Units (DU). For more details on the distribution of ozone in the atmosphere, click here.
Dobson Unit (DU): 1 Dobson Unit = .01mm height of ozone molecules, compressed down through the column. Click here to see more about the definition of Dobson Unit.
TCO Data: TCO data from Total Ozone Mapping Spectrometer (TOMS). The data are, using NASA terminology, level-3 data, which are released at 1° lat × 1.25° lon resolution. Some of the 1° × 1.25° cells do not contain any data.
This research is featured in an article on The Ohio State University Research Communications webpage.