Accession Number : AD0623478

Title :   THE PROBLEMS OF REMOTE OPTICAL PROBING OF THE ATMOSPHERE. SOME EXPERIMENTS ON THE INVERSION OF GROUND BASED RADIANCE MEASUREMENTS.

Descriptive Note : Final rept., pt. 2 on Optical Sounding II for 6 Nov 6315 Jul 65,

Corporate Author : NEW YORK UNIV N Y GEOPHYSICAL SCIENCES LAB

Personal Author(s) : Uthe,E. E.

Report Date : 15 JUL 1965

Pagination or Media Count : 31

Abstract : Low level temperature profiles are inferred from simulated ground based atmospheric radiance measurements in the 4.3 micron CO2 band. The inversion method compares these measurements with values obtained from a radiance model which is linearized by an assumed temperature profile T degrees P. An error term is added to the radiance measurements. The solution to the unstable system of equations is determined by minimizing the sum of the squares of the departures from the linearization profile T degrees P (Twomey, 1963). An iteration method is then used to correct the radiance model. Results indicate that profiles containing a first order discontinuity give satisfactory inversions when measurement and model errors are within 2 percent accuracy. (Author)

Descriptors :   (*ATMOSPHERIC SOUNDING, OPTICAL ANALYSIS), (*LASERS, ATMOSPHERIC SOUNDING), ATMOSPHERIC TEMPERATURE, TEMPERATURE INVERSION, CARBON DIOXIDE, ABSORPTION, INFRARED RADIATION, WATER VAPOR, SPECTROSCOPY

Distribution Statement : APPROVED FOR PUBLIC RELEASE