GNSS in the context of "Geodesy"

⭐ In the context of Geodesy, the study of the geometry, gravity, and spatial orientation of celestial bodies beyond Earth is specifically referred to as…

Ad spacer

⭐ Core Definition: GNSS

Satellite navigation (satnav) or satellite positioning is the use of artificial satellites for navigation or geopositioning. A global navigation satellite system (GNSS) provides coverage for any user on Earth, including air, land, and sea. There are four operational GNSS systems: the United States Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System (BDS) and the European Union's Galileo. Furthermore, there are two regional navigation satellite systems (RNSS) in the form of Japan's Quasi-Zenith Satellite System (QZSS), and the Indian Regional Navigation Satellite System (IRNSS, also known as NavIC).

A satellite-based augmentation system (SBAS) is a system that is designed to enhance the accuracy of the global GNSS systems. The SBAS systems include Japan's Quasi-Zenith Satellite System (QZSS), India's GAGAN, and the European EGNOS, all of them based on GPS.

↓ Menu

>>>PUT SHARE BUTTONS HERE<<<

👉 GNSS in the context of Geodesy

Geodesy or geodetics is the science of measuring and representing the geometry, gravity, and spatial orientation of the Earth in temporally varying 3D. It is called planetary geodesy when studying other astronomical bodies, such as planets or circumplanetary systems.

Geodynamical phenomena, including crustal motion, tides, and polar motion, can be studied by designing global and national control networks, applying space geodesy and terrestrial geodetic techniques, and relying on datums and coordinate systems.

↓ Explore More Topics
In this Dossier

GNSS in the context of Survey marker

In surveying and geodesy, a marker (also called a mark, monument, or station) is an object firmly installed to indicate points on the Earth's surface with known coordinates. A benchmark is a type of survey marker that indicates elevation (vertical position). Horizontal position markers used for triangulation are also known as triangulation stations. A set of interrelated geodetic markers form a geodetic network. An active station or reference station is occupied permanently with a measurement instrument, such as GPS/GNSS continuously operating reference stations (CORS).Benchmarking or trigpointing is the hobby of searching for these marks.

↑ Return to Menu
LINKED FROM (PARENTS)
← Geodesy ← Survey marker ← Geodetic marker
LINKS TO (CHILDREN)
U.S. Space Force → Global Positioning System → Satellite → Navigation → Geopositioning → GLONASS → BeiDou → Galileo (satellite navigation) → QZSS → IRNSS → Satellite-based augmentation system → Quasi-Zenith Satellite System → GAGAN → EGNOS →