WMO-Measurement Lead Centre- Hong Kong (Hong Kong, China)
WMO-Measurement Lead Centre for Doppler Light Detection And Ranging systems for aviation application, Hong Kong Observatory(Hong Kong, China) |
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General Site Information
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The Hong Kong Observatory (HKO) has long experience in operating Doppler Light Detection and Ranging (LIDAR) systems, and analyzing and using Doppler LIDAR data in real-life applications. HKO has invented the world-first LIDAR Wind shear Alerting System (LIWAS) and uses it operationally for alerting of low-level wind shear and turbulence at Hong Kong International Airport (HKIA). Other main activities include: • Operation of short-range Doppler LIDARs (with a maximum measurement range in the order of 3 to 6 km) for monitoring building-induced airflow disturbances and studying the characteristics of wake vortex of the aircraft in Hong Kong. This is the first application in the world to use short-range Doppler LIDAR for real-time monitoring of building effect on the low-level wind at an airport. • Evaluation and comparison of Doppler LIDARs, for example, the statistics of measurement range and the accuracy of radial velocity measurements for co-located LIDARs. Such knowledge and experience are much sought after by Members planning to implement Doppler LIDARs. • Operational use of algorithms for real-time determination of Eddy Dissipation Rate (EDR), an internationally-adopted measure of aviation turbulence intensity from Doppler LIDAR. This has built up an extensive data source for inter-comparison and calibration of EDR against those derived from other Doppler LIDARs and from aircraft data. |
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Lead Centre location: |
22.3089° N; 113.9147° E |
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Climate Type: |
Cfa (Humid subtropical climate) |
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Contact person: |
Mr Jeffrey Chi-wai Shun Lee |
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Email: |
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Address: |
Hong Kong Observatory 134A Nathan Road, Tsim Sha Tsui, Hong Kong, China |
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Tel: |
+852 2926 8435 |
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Fax: |
+852 2375 2645 |
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Website: |
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Further Information
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Further Site and Programme Details, Current Projects and Recent Publications |
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Biennial Reports
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