Accession Number:
AD0744472
Title:
Some Observations of Meteorological Effects on Optical Wave Propagation
Descriptive Note:
Research and development technical rept.
Corporate Author:
ARMY ELECTRONICS COMMAND WHITE SANDS MISSILE RANGE NM ATMOSPHERIC SCIENCES LAB
Personal Author(s):
Report Date:
1972-04-01
Pagination or Media Count:
23.0
Abstract:
Values for the refractive index structure coefficient, C sub n squared, were determined from spaced temperature probe measurements and from measurements of the log-amplitude variations in a laser beam. The values of C sub n squared obtained from the optical measurements were smaller than the values obtained from the temperature measurements. Variations in C sub n squared derived by the two methods were in good agreement even though the values obtained optically are over a 440-meter path while the temperature-derived values are essentially point measurements. The variations in the measured horizontal winds along the leeward side of the optical path showed a structure closely related to the optically derived C sub n squared variations.
Descriptors:
Subject Categories:
- Atmospheric Physics
- Lasers and Masers