The equivalent pressure of atmosphere ozone content.
"Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The equivalent pressure of a particular constituent of the atmosphere is the surface pressure exerted by the weight of that constituent alone.
Radiometric terms for the IASOA data vocabulary are taken from the Global Atmosphere Watch Station Information System (GAWSIS). . For the full reference, please visit: http://gaw.empa.ch/gawsis/display.asp.