Surveying Glossary — Letter E

Nyckelbegrepp inom professionell mätning och geospatial teknik.

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e57 3d imaging format

E57 is an open-source file format designed for storing and exchanging three-dimensional imaging data from terrestrial laser scanners and other 3D sensors.

e57 format

E57 is an open standard file format for storing and exchanging 3D imaging data, particularly point clouds from laser scanning and other survey instruments.

earthwork

The process of moving, shaping, and compacting soil and rock materials during construction and land development projects.

easement

A legal right granted to a person or entity to use another person's land for a specific purpose without owning the property.

EDM

EDM ay isang advanced na surveying instrument na gumagamit ng electromagnetic waves upang sukatin ang distansya sa pagitan ng dalawang punto.

EGNOS

EGNOS est un système européen de navigation par satellite qui améliore la précision et la fiabilité du positionnement GPS pour les applications de géodésie et de levé topographique.

ellipsoid

A three-dimensional geometric shape formed by rotating an ellipse around one of its axes, used in surveying to model the Earth's shape.

ellipsoidal height

The distance measured perpendicular to the ellipsoid surface from a point on the Earth's surface to the ellipsoid.

emlid flow

emlid flow is a cloud-based software platform for processing and managing survey data collected with Emlid RTK GNSS receivers.

Encroachment

The unauthorized occupation or intrusion of one property onto an adjacent property, exceeding legal boundaries.

epoch

A specific point or period in time used as a reference frame for celestial observations and coordinate system definitions in surveying.

EPSG

EPSG är en internationell databas över koordinatsystem och kartprojektioner som används inom kartografi och mätning.

error propagation

The process by which measurement errors in surveying combine and accumulate through calculations to affect final results.

ETRS89

ETRS89 is the European Terrestrial Reference System established in 1989, providing a standardized geodetic datum for surveying and mapping across Europe.