Surveying Glossary — Letter G

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

GCP ay isang set ng mga punto sa lupa na may kilalang koordinata, ginagamit bilang reference para sa surveying at mapping.

GDOP ay isang sukatan ng geometric na kalidad ng mga satellite na posisyon na ginagamit sa GPS surveying.

The science of measuring and mapping the Earth's shape, size, and gravitational field.

A location-based technology that uses GPS, RFID, or cellular data to create virtual boundaries around physical locations for triggering automated actions or alerts.

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 a specific location on Earth's surface.

Geomatics is the discipline that integrates surveying, mapping, and spatial information technologies to collect, analyze, and manage geographic data.

Georectification is the process of aligning and transforming geographic data or images to match a known coordinate system and map projection.

The process of assigning geographic coordinates to spatial data such as maps, images, or documents to align them with real-world locations.

Information about physical locations and features on Earth's surface, referenced by geographic coordinates and used for mapping, analysis, and decision-making.

GeoTIFF is a geospatial data format that embeds georeferencing metadata directly within standard TIFF image files to enable precise geographic positioning and analysis.

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

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GLONASS is a Russian satellite navigation system that provides positioning and timing information globally, similar to the American GPS system.

Global Navigation Satellite System (GNSS) is a satellite-based positioning system that provides accurate location, velocity, and time information worldwide.

GNSS Signal Processing refers to the techniques and algorithms used to acquire, track, and decode signals transmitted by Global Navigation Satellite System satellites to determine precise positions and timing information.

GNSS天线是接收全球导航卫星系统信号的专用设备，用于测量中获取准确的位置坐标和时间信息。

GPS inu teknolohiya na gumagamit ng satellite para sa tumpak na pagsusukat ng lokasyon at distansya sa lupain.

A unit of time used in GPS navigation systems where one week equals 604,800 seconds, with weeks numbered sequentially since January 6, 1980.

The process of establishing and maintaining proper elevations and slopes during construction to ensure structures meet design specifications and functional requirements.

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

GRS80 is the Geodetic Reference System of 1980, an international standard ellipsoid used as the reference surface for geodetic measurements and coordinate systems.

GSD hè a misura di a risoluzione spaziale di l'imaghjini satèllite o aeree, chì indica a dimensione di ogni pixel nantu à u terrenu.