Ozone Monitoring with an Infrared Heterodyne Radiometer
ROBERT T. MENZIES 1 and
ROBERT K. SEALS JR. 2
1 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103
2 NASA Langley Research Center, Hampton, Virginia 23665
Measurements of the total burden and of the concentration versus altitude profiles of ozone have been made with a ground-based heterodyne radiometer at Pasadena, California. The measurements were made in the 9.5-micrometer wavelength region, where a strong ozone infrared absorption band exists. The radiometer measured solar absorption at selected wavelengths, with a spectral resolution of 0.001 reciprocal centimeter, equivalent to the half-width of an ozone absorption line at the 10-millibar altitude level. A carbon dioxide laser served as the local oscillator. This technique can be used to gather important data on both tropospheric and stratospheric ozone, which are not readily accessible with other remote-sensing techniques.
Submitted on December 9, 1976
Revised on May 23, 1977
