Accession Number:

ADA066945

Title:

Field Test Results of a Laser Doppler Velocimeter and an Acoustic Doppler Wind Sounder.

Descriptive Note:

Final rept.,

Corporate Author:

AIR FORCE GEOPHYSICS LAB HANSCOM AFB MASS

Personal Author(s):

Report Date:

1978-11-01

Pagination or Media Count:

51.0

Abstract:

A field test program was conducted to evaluate the potential of two indirect wind sensing techniques as possible support in a warm fog dispersal system. The sensors examined were a Laser Doppler Velocimeter and an Acoustic Doppler Wind Sounder. Data from these devices were correlated with measurements taken by anemometers mounted upon a 61-m meteorological tower. The average deviation of the Laser Doppler Velocimeter was or - 1.0 msec in wind speed and or - 7 deg in azimuth. Five-minute averaging periods were taken and four to six altitudes were scanned during each run. The average deviation of the Acoustic Doppler Wind Sounder for 5-min averages was or - 0.9 msec in wind speed and or - 13 deg in azimuth. In one protracted run using 10-min averages, the deviations were or - 0.6 msec in wind speed and or - 6 deg in azimuth.

Subject Categories:

  • Meteorology
  • Acoustic Detection and Detectors
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE