Code : 2021095
Event Name : GNSS Heighting with a Precise Hong Kong Geoid model
CPD Code : Formal Events
Speaker : Prof. CHEN Wu
Professor and Head of Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University

Prof. CHEN Wu joined the Hong Kong Polytechnic University in 2000 and currently is a professor at Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University. He has been actively working on GNSS related research for over 30 years and has been working on a large number of research projects funded by universities, governments, and industries. His main research interests are Geodesy and Geodynamics, Seamless positioning technologies, indoor positioning, navigation and integrity, GNSS positioning and applications, system integration, GNSS performance evaluation, regional GPS network, wireless sensor network positioning, and Airborne Lidar applications. He has published over 400 technical papers in different journals and international conferences, submitted over 30 technical reports to various organizations, granted or filed more than 10 patents.
Event Date : 2021-06-17
Event Time : 7:00 pm - 8:30 pm
Registration Closing Date : 2021-06-16
CPD Hour(s) : 1.5
Divisional PQSL Hour(s) : 1.5
Venue : By online media – ZOOM
Division : LSD
Organizer : Land Surveying Division
Fee : HK$ 150 for members; HK$ 180 for non-members; Free of charge for LSGI full-time students (quota 50, first-come-first-served), details please see remarks
Priority : First-come-first-served
Language : English
Details :

Under the support of Innovation and Technology Commission (ITC) and Lands Departments of Hong Kong government, we develop a precise geoid model with 1 cm accuracy for Hong Kong.

Over 600 new gravity points were surveyed with the accuracy 0.060x10-5ms-2. Combined with the existing 640 gravity points and more than 70 GNSS/leveling points, the Hong Kong precise geoid model is developed based on two independent algorithms.  Through the external evaluation, it shows the accuracy of the Hong Kong geoid model is 1 cm, which is able to support ordinary leveling within Hong Kong territory using GNSS/leveling method. Currently this geoid model has been implemented in the Hong Kong coordinate transformation service provided by the Lands Department.

Remarks :

**All income, after deducting cost, will be donated to the HKIS Charitable Foundation Limited.

Registration link for LSGI students:

The event will be conducted online via ZOOM. Successful registrants will be notified separately via email with the web link and password in due course to the online event.

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Payment : HKD 150