Determination of Richardson number profile from remote sensing data and its aviation application
نویسنده
چکیده
A number of remote-sensing wind-measuring instruments, such as LIDAR and radar wind profilers, have been set up in the vicinity of the Hong Kong International Airport (HKIA) for monitoring of low-level windshear and turbulence. The combined usage of wind data from a radar wind profiler and boundary layer temperature profiles from a ground-based microwave radiometer in turbulence application is studied in this paper. Data collected in a field experiment of the radiometer conducted in Hong Kong in February 2006 were used to obtain the Richardson number profile up to 1.5 km above ground. Two examples of atmospheric turbulence reported by the pilots are considered. The Richardson number profiles are found to capture the turbulence events reasonably well. The evolution of these profiles and airflow disruption by the nearby terrain as a possible cause of the turbulence will also be discussed.
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