University of Denver infrared spectral atlases.

Atmospheric and laboratory atlases of high-resolution infrared absorption spectra have been generated from data obtained with the University of Denver Michelson-type interferometer balloon-borne spectrometer systems. The main objectives of the atlas work have been the identification and the detailed analysis of stratospheric infrared high-resolution spectral features. The stratospheric atlases cover many spectral intervals and provide tables of line positions and species identifications.

High resolution solar spectrometer system for measuring atmospheric constituents.

A mid IR Michelson interferometer capable of obtaining 0.002-cm(-1) resolution solar spectra has been developed for balloon use. The interferometer is based on the Bomem self-aligning instrument, and is equipped with a solar tracking system, telemetry, and recording systems, as well as temperature control and gondola orientation.

Infrared measurements of increased CF(2)Cl(2) (CFC- 12) absorption above the South Pole.

High-resolution ground-based solar spectra recorded at the Amundsen-Scott South Pole station in Dec. 1980 and Nov. 1986 have been analyzed in the region of the CF(2)Cl(2) (chlorofluorocarbon 12) nu(8) band Q branches at 1161 cm(-1).

Effect of volcanic aerosols on stratospheric radiance at wavelengths between 8 and 13 microm.

A set of stratospheric aerosol optical models is employed in a radiative-transfer computation to study the effects of postvolcanic particle size distributions and compositions on the spectral radiance in the 8-13-microm window region. The models are based on direct measurements of post El Chichon aerosol size distributions and vertical profiles. They represent various maturity states of aerosols composed of sulfuric acid aqueous solutions, formed and evolved in the stratosphere following a massive volcanic eruption.