Engineering topics
Publications and source records attributed to Gunson, M..
The Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment was started more than ten years ago as an investigation of the detailed chemical composition of the middle atmosphere.
The first ten years of Spacelab has seen it fly on a number of space shuttle missions carrying a myriad of science payloads including atmospheric remote sensing instruments.
A method for retrieving the atmospheric pressure corresponding to the tangent point of an infrared spectrum recorded in the solar occultation mode is described and applied to measurements made by the Atmospheric Trace Molecule Spectroscopy (ATMOS) Fourier transform spectrometer. Tangent pressure values are inferred from measurements of isolated CO(sub 2) lines with temperature-insensitive intensities. Tangent pressures are determined with a spectroscopic precision of 1-3%, corresponding to a tangent point height precision, depending on the scale height, of 70-210 meters.
Concentrations of hc1 measured in the lower stratosphere in 1993 by the ALIAS instrument on the ER-2 aircraft reveal that only 40% of inorganic chlorine (CL sub y, inferred from in situ measurements of organic chlorinated source gases) is present as HC1, significantly lower than model predictions.
A simple, classical, and expedient method for the retrieval of atmospheric pressure-temperature profiles has been applied to the high-resolution infrared solar absorption spectra obtained with the Atmospheric Trace Molecule Spectroscopy (ATMOS) instrument.
The Atmospheric Trace Molecule Spectroscopy (ATMOS) project was initiated more than ten years ago, as an investigation of the detailed chemical composition of the middle atmosphere.