Newchurch, M. J., D. Sun, J. H.
Kim, X. Liu (2003), Tropical tropospheric ozone derived using Clear-Cloudy
Pairs (CCP) of TOMS measurements, Atmos. Chem. Phys., 3, 683–695. Full
The clear-cloudy pair method is introduced. This
method uses column ozone from TOMS measurements above high-latitude clouds
to quantify the stratospheric column ozone, similar to the convective
cloud differential approach proposed by Aiemke et al., 1998. Tropospheric
ozone is then calculated by taking the difference between the toal column
ozone measured at clear-sky points and the stratospheric ozone column
at paired cloudy-sky points when the cloud top reaches the tropopause.
Figure 9. CCP tropospheric ozone derived
with EP TOMS 360-NM reflectivity information in 1997.
The above figure illustrates the usefulness
of the proposed method. The maximum ozone observed in the Indonesian
area is due to heavy forest fire activity and an El Nino signal observed
by Aiemke and Chandra (1999).