Results 1 to 10 of about 24,711 (273)
Precise Geoid Determination in the Eastern Swiss Alps Using Geodetic Astronomy and GNSS/Leveling Methods [PDF]
SensorsAstrogeodetic deflections of the vertical (DoVs) are close indicators of the slope of the geoid. Thus, DoVs observed along horizontal profiles may be integrated to create geoid undulation profiles.
Müge Albayrak +4 more
doaj +2 more sources
Geoids in General Relativity: Geoid Quasilocal Frames [PDF]
Classical and Quantum Gravity, 2015 We develop, in the context of general relativity, the notion of a geoid -- a surface of constant "gravitational potential". In particular, we show how this idea naturally emerges as a specific choice of a previously proposed, more general and ...
Epp, Richard J. +3 more
core +5 more sources
Dataset from Scintrex CG-5 gravity meters acquired at the Zhetygen calibration line in KazakhstanZenodo [PDF]
Data in BriefThe article provides a dataset derived from Scintrex CG-5 gravity meter observation files collected during five years of annual measurements along the Zhetygen calibration line utilizing three meters.
Roman Sermiagin +6 more
doaj +2 more sources
Geoid Undulation Model as Vertical Reference in Indonesia [PDF]
Scientific DataIndonesia released a new regional geoid model in 2020—the Indonesian Geoid 2020 (INAGEOID2020). It covers the Indonesian region with a spatial resolution of 0.01 × 0.01 degree with the unit in meters.
Arisauna Pahlevi +19 more
doaj +2 more sources
Gravity recovery from SWOT altimetry using geoid height and geoid gradient
Remote Sensing of Environment, 2021 Abstract The Surface Water and Ocean Topography (SWOT) altimeter mission can measure high-resolution wide-swath sea surface heights (SSHs) that may greatly improve the current accuracy and spatial resolution of marine gravity from nadir-looking altimeters.
Cheinway Hwang, Ole Baltazar Andersen
exaly +3 more sources
Cenozoic evolution of earth's strongest geoid low illuminates mantle dynamics beneath Antarctica. [PDF]
Sci RepGlišović P, Forte AM.
europepmc +3 more sources
Open access to regional geoid models: the International Service for the Geoid [PDF]
Earth System Science Data, 2021 The International Service for the Geoid (ISG, https://www.isgeoid.polimi.it/, last access: 31 March 2021) provides free access to a dedicated and comprehensive repository of geoid models through its website.
M. Reguzzoni +10 more
doaj +1 more source
Two alternative techniques for fitting the gravimetric geoid for Egypt
Contributions to Geophysics and Geodesy, 2023 In this paper, two proposed geoid fitting techniques for Egypt's gravimetrically determined geoid and Global Positioning System GPS/levelling-derived geoid are introduced. First, any errors in the available GPS stations are ruled out.
Hussein ABD-ELMOTAAL, Atef MAKHLOOF
doaj +1 more source
Geodesy and Geodynamics, 2023 The Global Navigation Satellite System (GNSS) positioning method has been significantly developed in geodetic surveying. However, the height obtained through GNSS observations is given in a geodetic height system that needs to be converted to orthometric
Rahayu Lestari +6 more
doaj +1 more source
Airborne geoid determination [PDF]
Earth, Planets and Space, 2014 Airborne geoid mapping techniques may provide the opportunity to improve the geoid over vast areas of the Earth, such as polar areas, tropical jungles and mountainous areas, and provide an accurate “seam-less” geoid model across most coastal regions. Determination of the geoid by airborne methods relies on the development of airborne gravimetry, which ...
Forsberg, R. +5 more
openaire +3 more sources