Publication Date:
2018
Description:
The SODAR and wind profiler at Siu Ho Wan.
Abstract
The quality and applications of vertical velocity data from SODAR and radar wind profilers are examined in this paper. The vertical velocity data from collocated SODAR and boundary layer type wind profilers are compared for a period of 7 months. It is found that the two datasets are well correlated, but the slope of the linear fit to the data has a significant deviation from 1. This may be related to the difference in the sampling volumes of the vertical beams from the two instruments. The correlation for horizontal wind data was found to be much stronger. Three applications of the vertical velocity data are discussed: subsidence in the outer periphery of a tropical cyclone and in hazy weather, and the upward motion of the air in convective weather. Data such as those under study here are found to contribute significantly to the monitoring and understanding of weather conditions, and would be useful for the nowcasting of lowvisibility and convective weather.
Print ISSN:
0043-1656
Electronic ISSN:
1477-8696
Topics:
Geosciences
