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Data Categories: Development  Environment 

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1:100 000 Orthophoto Map of Hong Kong

Hong Kong Special Administrative Region 1:100 000 Orthophoto Map

1:100 000 Topographic Map of Hong Kong

Hong Kong Special Administrative Region 1:100 000 Topographic Map

1:200 000 Topographic Map of Hong Kong

Hong Kong Special Administrative Region 1:200 000 Topographic Map

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...

Beach water quality

Latest information on beach water quality grading

Coordinates Transformation API API available

This Application Programming Interface (API) provides instant conversion between HK 1980 Grid Coordinates (Northing and Easting) and WGS84 (ITRF96) Geodetic Coordinates (Latitude and Longitude). The conversion methods, parameters and formulas used in...

Current Air Quality Health Index of individual Air Quality Monitoring stations

Current Air Quality Health Index (AQHI) at individual general and roadside Air Quality Monitoring stations

Current air quality health index range and forecast

Current range and forecast of Air Quality Health Index (AQHI) at general and roadside stations

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.

Disposal records of C&D materials at Public Fill Reception Facilities API available

Disposal Records of Inert C & D Materials at Public Fill Reception Facilities from Public Works Contracts

Disposal records of C&D materials at Sorting Facilities API available

Disposal Records of C & D Materials at Sorting Facilities from Public Works Contracts

District boundary

Geo-referenced data of District Boundary.

Exhibition gallery of government building projects

Information and images of selected government building projects since 2002

Geodetic Survey Control Station Database

There are about 5,500 Geodetic Survey Control Stations in Hong Kong, including trigonometric stations, bench marks and traverse stations. The coordinates of these stations can be widely adopted for positioning tasks. The Database files (xls/xml files)...

Historical Marine Water Quality Data (English Version)

Marine Water Quality data at different Marine Water Quality Monitoring stations from 1986 to 2017 (English Version)

Historical Marine Water Quality Data (Simplified Chinese Version)

Marine Water Quality data at different Marine Water Quality Monitoring stations from 1986 to 2017 (Simplified Chinese Version)

Historical Marine Water Quality Data (Traditional Chinese Version)

Marine Water Quality data at different Marine Water Quality Monitoring stations from 1986 to 2017 (Traditional Chinese Version)

Historical River Water Quality Data (English Version)

River Water Quality data at different monitoring stations from 1986 to 2017 (English Version)

Historical River Water Quality Data (Simplified Chinese Version)

River Water Quality data at different monitoring stations from 1986 to 2017 (Simplified Chinese Version)