Submillimeterwave heterodyne measurements of stratospheric ClO, HCl, O3, and HO2: First results

Abstract
The vertical profiles of ClO, HCl, HO2 and O3 were determined from thermal emission measurements by a balloon‐borne spectrometer operating near 640 GHz. Results are in broad agreement with previous measurements and models, but differ significantly with model photochemistry for the ratio of ClO to HCl.