Global monitoring of stratospheric halogen compounds from a satellite using gas filter spectroscopy in the solar occultation mode

Publisher Website
Google Scholar
Abstract
We have analyzed the gas filter radiometer approach for long-term monitoring of stratospheric HCl, HF, CH4, and H2O using solar occultation at selected intervals in the 2–6 μm range. Our analysis shows that this instrument technique is feasible. This conclusion is based on a simulation study in which we evaluated the effect of various experiment errors on retrieval accuracy. The instrument errors used were based on measurements made on a breadboard model gas filter radiometer. The results show that HCl and HF can be measured with an rms error of 10% and CH4 and H2O with an error of 15% over the 10–30-km range.