_:genid1 "Free to use with credit to the original figure source."^^ . "lower-atmosphere-ozone-transport" . "Lower Atmosphere Ozone Transport"^^ . "Tropospheric column ozone (in Dobson units) determined using the difference between the total column ozone measured by OMI and stratospheric ozone measured by the MLS instrument on the Aura satellite. A transport model was used to increase the horizontal resolution of the MLS-derived stratospheric column ozone. Global depictions for July and October 2008 show streams of tropospheric ozone crossing oceans, an important result for understanding both climate and air quality. Credit: M. Schoeberl and J. Ziemke, NASA/Goddard Space Flight Center."^^ . _:genid1 . . .