Yan Wa Chung is a scientific officer at the Hong Kong Observatory's Aviation Weather Forecast and Warning Services division. Her work focuses on delivering precise weather observations, forecasts, and warnings for airports, according to the ICAO standard. She develops nowcasting systems to support meteorological services for terminal areas and provides essential weather information for general aviation. Her goal is to ensure safety and efficiency in aviation operations by delivering reliable and accurate weather data tailored to the needs of the aviation community. Understanding ground-based lidar networks can provide her with insights and facilitate my understanding on matters related to the low-altitude economy.