Up-to-date satellite imagery for GIS operations
Satellite imagery data are key components for urban planning. The Hong Kong Planning Department developed a comprehensive web-based GIS (Geographic Information System) project to assist planners and engineers in all areas of urban and infrastructure planning.
To reach their different objectives, the Hong Kong Planning Department needed to analyze and explore not only their local environment but also their surrounding region which covers the whole of Southern China. In other words, they needed to provide the best imagery basemap for geographical reference to their engineers and planners.
The project was to use a 10-meter resolution imagery mosaic covering Southern China. The imagery would be used for visualization through a web-based GIS system aimed at all offices and departments within the Hong Kong Government.
The challenge was to base their planning on an imagery mosaic that would be detailed enough to showcase their whole region of interest. Furthermore, they had set a number of key features to which the product had to conform, i.e.up-to-date data, homogeneous mosaic, and natural color processing.