Isotopic ozone in the 5μ region from high resolution balloon-borne and ground-based FTIR solar spectra

High resolution (0.002-0.004 cm(-1)) i.r. solar absorption spectra of the stratosphere obtained during University of Denver balloon flights, and from the ground-based Network for the Detection of Stratospheric Change (NDSC) observatory at Mauna Loa, Hawaii, show numerous spectral features of several isotopic species of O-3, in both the 10 mu and 5 mu regions. Many of the 5 mu lines reported here have not been previously observed in atmospheric spectra. The identification and quantification of the lines proceed by combined analyses of the atmospheric spectra, laboratory spectra of enriched samples, and updated line parameter calculations. (C) 1998 Elsevier Science Ltd. All rights reserved.