Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tidal phenomena are not limited to the oceans, but can occur in other systems whenever a gravitational field that varies in time and space is present.
Tides vary on timescales ranging from hours to years due to a number of factors, which determine the lunitidal interval. To make accurate records, tide gauge at fixed stations measure water level over time. Gauges ignore variations caused by waves with periods shorter than minutes. These data are compared to the reference (or datum) level usually called mean sea level.
Precise determination of a “mean sea level” is difficult because of the many factors that affect sea level. Instantaneous sea level varies quite a lot on several scales of time and space. This is because the sea is in constant motion, affected by the tides, wind, atmospheric pressure, local gravitational differences, temperature, salinity, etc. The easiest way this may be calculated is by selecting a location and calculating the mean sea level at that point and using it as a datum. For example, a period of 19 years of hourly level observations may be averaged and used to determine the mean sea level at some measurement point.
UTM-GnG hosted a research colloquium on geomatics, geodesy and hydrography with Kangwon National University (강원대학) and Changwon National University (창원대학교) in UTM Skudai on 13 August 2023. This GnG-Korea Colloquium enables researchers and students to showcases not only their specialized research in their respective surveying fields but also allowing us to discuss and exchange knowledge as well as setting the future cooperation in between the universities in the international arena.
Geomatics Engineering is an academic discipline that concerns on acquisition, analysis, and interpretation of mainly geospatial data, relating to the Earth, its physical features and the built environment. It comprises tools and techniques of measuring, managing, presenting and analyzing geospatial data from diverse sources with well-defined characteristics on accuracy and continuity; and in the form of digital format. Geospatial data are obtained from a wide range of technologically advanced tools like total station, Global Positioning System (GPS) / Global Navigation Satellite System (GNSS) equipment, digital aerial imagery (form both satellite and airborne), Terrestrial Laser Scanner (TLS), Unmanned Aerial Vehicle (UAV), echo sounder and Ground Penetrating Radar (GPR). These data are processed and manipulated by using a computer and the latest software. Also included in the area of geospatial are computer-based Geographic Information Systems (GIS) and remote sensing for monitoring the environment.is an academic discipline that concerns on acquisition, analysis, and interpretation of mainly geospatial data, relating to the Earth, its physical features and the built environment. It comprises tools and techniques of measuring, managing, presenting and analyzing geospatial data from diverse sources with well-defined characteristics on accuracy and continuity; and in the form of digital format. Geospatial data are obtained from a wide range of technologically advanced tools like total station, Global Positioning System (GPS) / Global Navigation Satellite System (GNSS) equipment, digital aerial imagery (form both satellite and airborne), Terrestrial Laser Scanner (TLS), Unmanned Aerial Vehicle (UAV), echo sounder and Ground Penetrating Radar (GPR). These data are processed and manipulated by using a computer and the latest software. Also included in the area of geospatial are computer-based Geographic Information Systems (GIS) and remote sensing for monitoring the environment.
Apa itu Kejuruteraan Geomatik @UTM?
Kejuruteraan Geomatik merupakan satu disiplin akademik yang berkaitan dengan pengumpulan, analisis, dan pentafsiran data geospatial, berkaitan dengan bumi, ciri-ciri fizikalnya dan alam persekitaran. Ia merangkumi peralatan-peralatan dan teknik-teknik pengukuran, pengurusan, persembahan dan analisis data geospatial daripada pelbagai sumber dengan ciri-ciri khusus secara tepat dan menyeluruh; dalam bentuk digital. Data geospatial boleh diperolehi daripada pelbagai peralatan teknologi baru yang canggih seperti Global Positioning System (GPS) / Global Navigation Satellite System (GNSS), imej penderiaan jauh digital (daripada satelit dan pesawat udara), Terrestrial Laser Scanner (TLS), Unmanned Aerial Vehicle (UAV), sistem pemerum gema and Ground Penetrating Radar (GPR). Data-data tersebut diproses dan dimanipulasi dengan menggunakan komputer dan perisian terkini. Ia turut termasuk Sistem Maklumat Geografi (GIS) yang berasaskan komputer dan sistem penderiaan jauh untuk memantau perubahan alam sekitar.
