Surveying Glossary — Letter G

Galileo is the European Union's global navigation satellite system providing positioning, navigation, and timing services worldwide.

GCP ay ang abbreviasyon para sa Ground Control Point, isang tukoy na lokasyon na may kilalang coordinate na ginagamit sa surveying at mapping.

GDOP ay isang sukatan ng geometric na kalidad ng mga satellite na posisyon para sa GPS positioning accuracy.

The science of measuring and mapping the Earth's physical features and gravitational field.

A location-based technology that uses GPS, RFID, or cellular data to create virtual boundaries around geographic areas and trigger automated actions when devices enter or exit these zones.

The equipotential surface of Earth's gravitational field that best approximates mean sea level and serves as the reference for measuring elevations.

The vertical distance between the ellipsoid and the geoid at any given point on Earth's surface.

Geomatics is the discipline of gathering, storing, processing, and delivering geographic data and information using integrated systems of sensors, computers, and analytical methods.

The process of aligning and correcting geographic data to match a known coordinate system and remove distortions.

The process of assigning geographic coordinates to spatial data or images to align them with a real-world coordinate system.

Information that identifies the geographic location and characteristics of natural or constructed features and boundaries on Earth.

GeoTIFF is a standardized image format that embeds geographic coordinate information directly into TIFF files, enabling precise spatial referencing of raster data.

A pivoted support that allows an object to rotate freely on multiple axes, commonly used in surveying instruments to maintain level orientation.

GIS yra komputerinė sistema, kuri saugo, analizuoja ir vizualizuoja geografinius duomenis erdvinėms problemoms spręsti.

GLONASS is a Russian satellite navigation system that provides positioning, navigation, and timing services globally.

GNSS ay isang pandaigdigang sistema ng satellite navigation na nagbibigay ng tumpak na lokasyon at oras sa mga receiver sa buong mundo.

GNSS Signal Processing refers to the techniques and methods used to acquire, track, and decode signals from Global Navigation Satellite System satellites to determine precise positioning and timing information.

GNSS天线是接收全球导航卫星系统信号的关键设备，用于测量和定位应用中获取卫星信号。

GPS est un système de positionnement par satellite utilisé en arpentage pour déterminer les coordonnées précises de points sur la surface terrestre.

A timekeeping unit in the GPS system that consists of 604,800 seconds and is used for precise timing and positioning calculations.

The process of establishing and maintaining correct elevation levels during construction and surveying operations.

A surveying technique that removes non-ground points from LiDAR data to create accurate digital terrain models.

GRS80 is the Geodetic Reference System of 1980, an international standard ellipsoid used for geodetic surveys and mapping worldwide.

GSD ay ang ground sample distance na sumusukat sa spatial resolution ng mga aerial at satellite imagery sa surveying.