Accession Number:

AD0483101

Title:

GROUND-BASED PASSIVE PROBING IN THE MICROWAVE REGION.

Descriptive Note:

Final rept.,

Corporate Author:

INSTITUTE FOR TELECOMMUNICATION SCIENCES AND AERONOMY BOULDER CO

Personal Author(s):

• Westwater, E. R.
• Strand, O. N.
• Abbott, R. L.

Report Date:

1966-03-01

Pagination or Media Count:

85.0

Abstract:

Ground-based determination of the temperature distribution of the troposphere from microwave measurements of oxygen emission spectra is discussed. Microwave absorption by oxygen and water vapor is reviewed, and least-squares determination of line-width parameters from absorption data is presented. Brightness temperature calculations from perturbed temperature profiles are given to show frequency regions of maximum sensitivity to temperature profiles. Least-squares inversion by low order polynomials is presented for several types of temperature profiles. Inversion by inversequadrature using a modified method of Twomey is discussed. Finally, calculations of brightness temperatures in the vicinity of the 183 Gcs water vapor line are presented. Author

Descriptors:

• *ATMOSPHERIC SOUNDING)
• (*TROPOSPHERE
• (*ATMOSPHERIC TEMPERATURE
• TROPOSPHERE)
• ELECTROMAGNETIC RADIATION
• MEASUREMENT
• EMISSIVITY
• OXYGEN
• ABSORPTION SPECTRA
• LEAST SQUARES METHOD
• EQUATIONS
• WATER VAPOR
• DISTRIBUTION
• HEAT TRANSFER
• MATHEMATICAL ANALYSIS
• FUNCTIONS(MATHEMATICS)
• POLYNOMIALS
• PROBES
• HUMIDITY
• SKY BRIGHTNESS
• AIR MASS ANALYSIS
• MICROWAVE FREQUENCY
• MICROWAVES

Subject Categories:

• Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE