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Geomatics is a collective term, which includes the widespread scientific developments in the Land Surveying profession. “Geo” refers to land and “matics” refers to the mathematics and science such that Geomatics integrates the acquisition, management, analysis, modeling and presentation of geo-spatially referenced information. It comprises the modern cutting-edge technologies of metrology, navigation systems (GPS, GLONASS, GALILEO), utility surveying and management, cartography, geographical information systems (GIS), photogrammetry and remote sensing, and internet map design and delivery. On the management side, the role of cadastral survey is to delineate precise and legal lot boundaries and thus to support the land and property market. The latest developments in Geomatics include three-dimensional modeling and visualisation, science and applications of location based services (such as the developments of advanced mobile systems for navigation and service information provision), and internet spatial information delivery and service (such as Google maps).
Land Surveying
Land Surveying ( 土地測量 ) is the measurement and collection of data related to land features. We are concerned with the location and position of features, as well as their dimensions, and changes over time. The land features include:
- all natural (mountains, valleys, rivers etc.) and man-made (roads, building etc.) features
-- Topographical Surveying ( 地形測量 )
- privately or publicly owned land parcels or properties
-- Cadastral Surveying ( 地籍測量 )
- those related to construction of roads and buildings
-- Engineering Surveying ( 工程測量 )
- water depth and features
-- Hydrographic Surveying ( 水文測量 )
You will learn about the various data collection techniques
- Total Station (Electronic Theodolite & Measuring Instrument) 電子經緯儀及全站儀
- Deep Sea Echo Sounder and Laser Scanner 深海聲納及雷射掃瞄儀
- Aerial Photogrammetry 航空測量
- Satellite Imaging 人造衛星影像
- Global Positioning Systems 全球定位系統
After these location and dimensional data are collected, what's next ?
Geo-informatics
Geo-informatics (地理資訊) or Geomatics is a special kind of Information Technology (IT) (資訊科技) which integrates acquisition/collection, management, analysis, modelling and presentation of spatially referenced data that are concerned with land features. The related technology includes those of
- Land Surveying (土地測量)
- Digital Mapping / Automated Cartography (數碼繪圖)
- Geographic Information Systems (地理資訊系統)
- Virtual Reality (虛擬現實)
Projects related to our course
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