Remote sounding of atmospheric temperature from satellites V. The pressure modulator radiometer for Nimbus F

A new radiometer is described for remote sounding of the temperature of the stratosphere and mesosphere (40-90 km) from a satellite platform. In order to select radiation emitted from close to the centres of CO2 lines in the 15 pm infrared band, included in the optical system is a cell containing CO2 gas whose pressure can be modulated at a frequency of ca. 15 Hz. The parts of the emission lines selected can be altered by two methods known as pressure scanning and Doppler scanning. A two-channel instrument for the Nimbus F satellite is described in detail.

[1]  Barnes.  Discussion of the Paper , 1961, Public health papers and reports.

[2]  John Theodore Houghton,et al.  Remote sounding of atmospheric temperature from satellites. I. Introduction , 1970, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[3]  S. D. Smith,et al.  Stratospheric Warming observed by Nimbus 4 , 1971, Nature.

[4]  Fredric W. Taylor,et al.  Remote sounding from artificial satellites and space probes of the atmospheres of the Earth and the planets , 1973 .

[5]  E. J. Williamson,et al.  Remote sounding of atmospheric temperature from satellites IV. The selective chopper radiometer for Nimbus 5 , 1973, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[6]  J. J. Barnett,et al.  The mean meridional temperature behaviour of the stratosphere from November 1970 to November 1971 derived from measurements by the Selective Chopper Radiometer on Nimbus IV , 1974 .

[7]  S. D. Smith,et al.  The first year of the selective chopper radiometer on Nimbus 4 , 1972 .

[8]  Clive D. Rodgers,et al.  Remote sounding of atmospheric temperature from satellites II. The selective chopper radiometer for Nimbus D , 1970, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[9]  C. Rodgers.  Some theoretical aspects of remote sounding in the earth's atmosphere , 1971 .

[10]  S. D. Smith,et al.  First Results from the Selective Chopper Radiometer on Nimbus 4 , 1970, Nature.

[11]  J. Houghton.  Absorption and emission by carbon‐dioxide in the mesosphere , 1969 .