Improvement of the understanding of the 3-dimensional winds behaviors in urban areas of Hong Kong using Doppler LiDAR system

Professor Ren, Chao   (Co-Principal Investigator (Co-PI) (for projects led by other university))

Fung Chi Hung   (Project coordinator)

36

2023-06-30

1458928

Improvement of the understanding of the 3-dimensional winds behaviors in urban areas of Hong Kong using Doppler LiDAR system

Urban Wind environment, wind LiDAR, vertical wind profile, air ventilation assessment, urban design and planning

Environmental Studies and Science

C6026-22G

Collaborative Research Fund (CRF) - Group Research Project 2022/2023

2022

On-going

1). Using Light Detection and Ranging (LiDAR) on-site measurement, observe the vertical wind environment in high-density cities (Hong Kong as a case study) as well as reveal the scientific merit and gaps of the existing model-based knowledge on vertical urban wind profiles. 2). Using the results of Objective 1, improve the current scientific understanding to optimize the numerical parametrization schemes of the current mesoscale meteorological model (e.g.,uWRF (BEP/BEM-coupled Weather Research and Forecasting) model), as well as produce a spatial map of urban wind profiles for Hong Kong. 3). Using the results of Objectives 1 and 2, improve the current model understanding to optimize the selection and setting of the inflow boundary and thermal conditions in the microscale Large Eddy Simulation (LES) models, as well as improve the study results of urban winds in high-density cities using Hong Kong as an example. 4). Based on the results of Objectives 2 and 3, improve the practice understanding of Hong Kong government’s current Air Ventilation Assessment (AVA) methods, as well as knowledge transfer to policy makers, urban planners, and industry stakeholders to aid policy changes and professional practices in Hong Kong