Accession Number:

AD0648150

Title:

DIFFERENCES OF TOWER AND PIBAL WIND PROFILES,

Descriptive Note:

Corporate Author:

ATMOSPHERIC SCIENCES LAB WHITE SANDS MISSILE RANGE N MEX

Personal Author(s):

• Rider,L. J.
• Armendariz,M.

Report Date:

1966-11-01

Pagination or Media Count:

20.0

Abstract:

The time and space variability of the wind as derived from tower-mounted anemometers and triple-theodolite pilot-balloon pibal observations at the same altitude at Green River, Utah, during four nighttime operations in September 1965 is analyzed. Simultaneous wind measurements from the balloon and tower-mounted anemometers at 53.4, 68.6, 91.5, 122.0, and 152.4 meters above the ground are compared. Mean differences in wind directions were 14.0 degrees except at the lowest level, where the mean difference was 17.0 degrees. Sample standard deviations of direction differences were 19, 15, 11, 10, and 10 degrees, respectively. The pibal wind speeds were approximately 1.0 metersec greater than the tower wind speeds at all five levels, and sample standard deviations of the wind speed differences were approximately 2.0 meterssec. Author

Descriptors:

• *LAUNCHING
• WIND
• MEASUREMENT
• ANEMOMETERS
• TOWERS
• METEOROLOGICAL BALLOONS
• WIND DIRECTION INDICATORS
• TERRAIN
• STATISTICAL DISTRIBUTIONS

Subject Categories:

• Meteorology
• Guided Missile Launching and Basing Support

Distribution Statement:

APPROVED FOR PUBLIC RELEASE