Abstract

The detection of tropospheric ozone and other pollutants are of considerable interest because of their extensive environmental impact on society. Previous in situ measurement techniques have shown enhancements in ground-level ozone by as much as 100 ppbv in the Windsor-to-Quebec corridor (Heidorn and Yap, 1986; Lin et al., 1992). Recently, we have used a novel technique based on FTIR spectroscopy to measure the radiation from ozone against the cold blackbody emission of clouds. From these thermal emission measurements we have been able to estimate the tropospheric ozone amount. Additional measurements also have been made under cloudless conditions during a strong pollution episode in the SONTOS'96 campaign.

© 1997 Optical Society of America