Accession Number:

AD0754893

Title:

Light Scattering Instrumentation for High Altitude Air Density Measurements,

Descriptive Note:

Corporate Author:

UTAH UNIV SALT LAKE CITY UPPER AIR RESEARCH LAB

Personal Author(s):

• Howlett,Leland C.
• Westlund,Clay D.

Report Date:

1970-05-01

Pagination or Media Count:

84.0

Abstract:

NSTRUMENTATION FOR High Altitude Air Density Measurements,Howlett,Leland C. Westlund,Clay D. Scientific-1, UTEC-UA-72-166F19628-69-C-0158AF-6690, AF-5710669001, 571001AFCRL70-0323atmospheric sounding, optical instruments, ionosphere, density, photomultiplier tubes, signal-to-noise ratio, airglow, lasers, numerical analysis, sounding rockets, rayleigh scattering, spectrum analyzerslaser beams, light scattering, atmospheric densityMeasurement of high altitude air density by means of a sounding rocket containing instruments to measure the intensity of light scattered from a segment of a light beam projected from a modulated onboard source is investigated. Based upon a partially successful flight of such a payload and theoretical considerations, the technique does appear to be fundamentally sound but requires significant design improvements to operate successfully at altitudes between 100 and 175 kilometers. Author

Descriptors:

• *ATMOSPHERIC SOUNDING
• *IONOSPHERE
• OPTICAL INSTRUMENTS
• DENSITY
• PHOTOMULTIPLIER TUBES
• AIRGLOW
• LASERS
• SOUNDING ROCKETS
• RAYLEIGH SCATTERING

Subject Categories:

• Atmospheric Physics
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE