Open Data

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Geo-referenced Public Facility Data



Geo-referenced Public Facility Data

Geo-referenced Public Facility Data contain 79 types of geo-referenced public facility data, which are available on the Hong Kong GeoData Store and DATA.GOV.HK for free download by the general public.

Users could visit the Hong Kong GeoData Store to preview the distribution of the selected type of public facility and download the geo-referenced data, with attributes including names, addresses, WGS84 Latitudes and Longitudes, and HK 1980 Grid coordinates in machine-readable formats of CSV, GeoJSON, GML, KML, as well as GeoData API.

       
         
Real Time Raw Data Stream Service



SatRef GNSS Real Time Raw Data Streams

The Hong Kong Satellite Positioning Reference Station Network (SatRef) has been supporting high accuracy positioning applications for public since 2010. The reference stations receive real-time GNSS signals from GPS, GLONASS and Beidou satellites round-the-clock. The GNSS Real-time raw data streams are then instantaneously disseminated via DATA.GOV.HK as part of the Public Sector Information (PSI). They can be acquired by means of NTRIP with the appropriate settings.

Please read the Terms and Conditions of Use of DATA.GOV.HK before using the service.

       
         
Geodetic Survey Control Station Database



Geodetic Survey Control Station Database

There are about 5,500 Geodetic Survey Control Stations in Hong Kong. The coordinates of these stations can be widely adopted for positioning tasks.

Please read the Terms and Conditions of Use of DATA.GOV.HK before download.

       
         
Digital Terrain Model (DTM)


Digital Terrain Model (DTM)

The DTM is a digital terrain model of the Hong Kong Special Administrative Region. It shows the topography of terrain (including non-ground information such as elevated roads and bridges) in 5-metre raster grid with an accuracy of ±5m. If land area is covered by vegetation, the terrain will be depicted by the height of vegetation.

Please read the Terms and Conditions of Use of DATA.GOV.HK before download.

       
         



Aerial Photo Flight Index

The aerial photo flight index shows the aerial photo and flight information, including photo number, shooting position, photo coverage, date of flight, flying height etc., of the aerial photographs taken by Survey and Mapping Office (SMO). There are three file formats, XLS, KML and KMZ for download. The file in KML and KMZ file format is geo-referenced to World Geodetic System (WGS84), containing both aerial photo and flight information, while the file in XLS file format only contains the aerial photo information.

Please read the Terms and Conditions of Use of DATA.GOV.HK before download.

       
         
Street Name



Street Name

Data contains street names showing in map products published by the Survey and Mapping Office, Lands Department.

Please read the Terms and Conditions of Use of DATA.GOV.HK before download.

       
         
Old Photos of Hong Kong



Old Photos of Hong Kong

100 selected old photos of Hong Kong taken in the 1950s showing the street views of Hong Kong, with district name tagged in the “Title” field of image file, some with street and building names.

Please read the Terms and Conditions of Use of DATA.GOV.HK before download.

       
         
3D Visualization Map



3D Visualization Map

3D Visualization Map is a form of digital surface model used for spatial data visualization, query and analysis. The 3D Visualization Map is tiled with dimension of 150m x 150m. 3D Visualization Map in different districts will be launched by phases and will gradually cover the whole Hong Kong in the future.

Users could visit the Hong Kong GeoData Store to preview and download the 3D visualization map in open formats, i.e. tiled-OSGB or OBJ format.