Geodesy - Wikipedia
Geodesy or geodetics[1] 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. [2]
History of geodesy - Wikipedia
The first circumnavigation of Africa is described as being undertaken by Phoenician explorers employed by Egyptian pharaoh Necho II c.610–595 BC. [ 4 ][ 5 ] In The Histories, written 431–425 BC, Herodotus cast doubt on a report of the Sun observed shining from the north.
What is geodesy? - NOAA's National Ocean Service
Geodesy is the science of accurately measuring and understanding three fundamental properites of the Earth. Many organizations use geodesy to map the U.S. shoreline, determine land boundaries, and improve transportation and navigation safety.
Geodesy | Surveying, Mapping & Measurement | Britannica
Geodesy, scientific discipline concerned with the precise figure of the Earth and its determination and significance. Until the advent of satellites, all geodesic work was based on land surveys made by triangulation methods employing a geodesic coordinate system (one …
What does a geodesist do? - NOAA's National Ocean Service
Geodesists measure and monitor the Earth’s size and shape, geodynamic phenomena (e.g., tides and polar motion), and gravity field to determine the exact coordinates of any point on Earth and how that point will move over time.
Geodesy - MIT Haystack Observatory
Geodesy is the science of accurately measuring the geometric shape of the earth, its orientation in space, and its gravity field, and monitoring how these properties change over time. Space geodesy is the geodesy that is practiced using extra-terrestrial assets such as …
Physical geodesy is concerned with determining the Earth’s gravity field, which is necessary for establishing heights. Satellite geodesy is concerned with using orbiting satellites to obtain data for geodetic purposes. To understand the role of geodesy, it might be useful to …