LaTItUdINAL TEMPoRaL variation of total o ToMs197992 90 Dobson units 1 DU=2.69 x 1016 molecules O3 cm-2 90300 0 M5A Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Source: Stratospheric O-one, NASA/GSFC Total O3 in range of 300-400 DU Patterns due to stratospheric circulation Low total O3 at high southern lat in southern spring due to ' ozone hole
LATITUDINAL & TEMPORAL VARIATION OF TOTAL O3 • Total O3 in range of 300-400 DU • Patterns due to stratospheric circulation • Low total O3 at high southern lat in southern spring due to ‘ozone hole’ Dobson units 1 DU = 2.69 x 1016 molecules O3 cm-2 Source: Stratospheric Ozone, NASA/GSFC
STRATOSPHERIC O, CHEMISTRY 60 50 40 30 20 10 0 0 M ixing Ratio (ppmv)
STRATOSPHERIC O3 CHEMISTRY