maatason
Maatason is a term used in Finnish surveying and civil engineering to denote the height of the ground surface relative to a defined reference datum. It is commonly used to describe elevations for construction projects, drainage design, and land development, ensuring consistent vertical positioning across sites.
A reference datum may be mean sea level (MSL) or a geodetic ellipsoid; in practice, measurements are
Measurement approaches include spirit leveling and optical or digital levels, automatic levels and digital level devices,
Applications include infrastructure alignment, road and railway design, flood risk assessment, rainfall drainage, building foundations, and
Challenges include geoid variation, tidal effects, subsidence or uplift, and regulatory datum updates. Clear documentation of