Geomatics is the field of study that deals with the measurement, representation, analysis, and management of spatial data. It encompasses a wide range of technologies and techniques, including GIS, remote sensing, surveying, and cartography. It can be applied to a variety of fields such as land use planning, natural resource management, environmental monitoring, transportation, and emergency response.
Land surveying, on the other hand, is the measurement and mapping of the land, including its natural and man-made features. It is the process of determining the location of points and the distances, angles, and elevations between them. Land surveying is an important aspect of geomatics, and it is used to produce accurate maps and data for various applications such as land use planning, construction, and real estate.
In summary, Geomatics is a field of study that deals with the measurement, representation, analysis, and management of spatial data and it encompasses multiple subfields including land surveying which is the measurement and mapping of the land. Land surveying is a subset of geomatics and it is used for accurate mapping and data collection for various applications. Both geomatics and land surveying involves the collection and management of spatial data, but geomatics is a broader term that encompasses more fields than just land surveying.