I am currently preparing to simulate solar radiation on the rooftops of buildings in Hong Kong. Given the city's landscape with numerous tall buildings, these structures create significant shadows that must be accounted for in my simulation. Therefore, it is crucial to use a Digital Surface Model (DSM) that accurately reflects the absolute heights of each building.
I have searched through the ArcGIS database but have not been able to locate a suitable DSM file for this purpose. Could anyone please guide me on how to find a DSM layer for Hong Kong that includes building heights? Any help would be greatly appreciated.
Thank you!