The early practice of geodesy is dated back to ca.
250 BC in the ancient Egypt and later on known as the science of determining the size and shape of the earth, including its temporal variation, using measurements. Geomatics has risen in the early of 1990ies, with the advance of computing technology. This follows its preceding practical application known as surveying and mapping. Modern science and practice in geodesy and geomatics engineering involves -but not limited to- satellite observation, underwater measurement, and information technology. Environmental protection, infrastructure development, disaster mitigation, spatial planning, and natural resources exploitation depend much on the quality of services of practitioners in the field of geodesy and geomatics engineering.