engineering geodesy - oceanmapper

GEODESY is the science of measuring and studying the Earth’s shape, gravity field, and orientation in space. It deals with the measurement and representation of the Earth’s surface and has a wide range of applications, including surveying, mapping, navigation, and geophysical studies, to name a few. A variety of methods are used to measure the Earth’s shape, including satellite-based techniques (e.g. GPS and radar altimetry), and ground-based techniques (e.g. triangulation and levelling).

Engineering geodesy is a specialized field of geodesy that involves the application of geodetic techniques to engineering projects such as construction, transportation, and land development. Some of the characteristics that describe a job in engineering geodesy include;

Knowledge of geodetic measurement techniques, including satellite positioning, terrestrial and airborne surveys, and laser scanning. You will use geodetic instruments and software for processing and analysing data.
Engineering geodesy requires precise and accurate measurements. If you work in this field you must be prepared to be detail-oriented and have a high level of accuracy.
The systems related to geodetic measurements, data collection and processing, and data analysis are complex and any error must be well understood and removed. Ideally, you will enjoy identifying and solving problems.
You’ll need a strong background in mathematics and physics and good communication skills to collaborate effectively with colleagues from different fields within interdisciplinary teams.
Engineering geodesy involves a significant amount of fieldwork, including site surveys, data collection, and monitoring. You will work outdoors in various weather conditions and must be competent with using geodetic instruments and equipment.
Data collection, processing, analysis and visualization is done with specialised geospatial software. Examples include CAD software, GIS software, and numerical modelling software.

Engineering geodesy focuses on the practical applications of geodetic measurements. You’ll work with devices like Theodolites and Total stations, learn about Global Navigation Satellite System (GNSS), and undertake fieldwork.

Total stations are electronic surveying instruments that can measure angles and distances to a high degree of accuracy. They are used for measuring angles, distances, and elevations for mapping and construction projects (onshore and offshore).

GNSS describe a group of satellite-based navigation systems that provide global coverage and positioning information to users all around the world. The most well-known and widely used GNSS is the Global Positioning System (GPS), which was developed by the United States government. Other GNSS systems include GLONASS (Russia), BeiDou (China), Galileo (European Union), and NavIC (India). Each of these systems works in a similar way, using a network of satellites with a wide range of applications, including navigation for ships, aircraft, and land vehicles, as well as surveying, mapping, and scientific research. GNSS can be used for timing synchronization, as the signals sent by the satellites are extremely precise.

Levelling instruments are used to measure the height differences between two or more points. They are used for precise elevation measurements in construction and engineering projects.

Laser scanners are used to create high-resolution 3D models of objects and environments. They are often used in construction projects to measure as-built conditions and monitor progress.

There are several career opportunities in engineering geodesy, including land surveyor, geomatics engineer, geospatial analyst, civil engineer, geotechnical engineer, remote sensing specialist, GIS specialist, and ocean mapper.