ESTIMATION OF WIND SPEEDS AND TEMPERATURES WITHIN THE EARTHS BOUNDARY-LAYER

Citation
M. Lander et P. Duplessis, ESTIMATION OF WIND SPEEDS AND TEMPERATURES WITHIN THE EARTHS BOUNDARY-LAYER, South African journal of science, 90(11-12), 1994, pp. 583-588
Citations number
11
Categorie Soggetti
Multidisciplinary Sciences
ISSN journal
00382353
Volume
90
Issue
11-12
Year of publication
1994
Pages
583 - 588
Database
ISI
SICI code
0038-2353(1994)90:11-12<583:EOWSAT>2.0.ZU;2-3
Abstract
Data from two instrumented meteorological masts, each 100 m high, were used to develop empirical models to estimate wind speeds and temperat ures for any height up to 100 m. The estimations were accomplished by using measurements of wind speed and temperature near the ground. The ability to estimate wind speeds in this way may be of value to enginee rs involved in the design of tall structures. Estimations of temperatu res up to heights of 100 m are useful for engineers concerned with the operation of a plant where a knowledge of ambient temperatures at unu sual elevations is required. This study shows that the traditionally u sed 1/7th power law may yield results which can be much lower than act ual wind speeds, especially at night.