Results 71 to 80 of about 226 (172)

On the Applicability of Molodensky’s Concept of Heights in Planetary Sciences

Geosciences, 2018
Geometric heights, defined with respect to a geometric reference surface, are the most commonly used in planetary studies, but the use of physical heights defined with respect to an equipotential surface (typically the geoid) has been also acknowledged ...
Robert Tenzer, Ismael Foroughi
doaj   +1 more source

The Accuracy Assessment of the PREM and AK135-F Radial Density Models. [PDF]

Sensors (Basel), 2022
Tenzer R, Ji Y, Chen W.
europepmc   +1 more source

Lithospheric structural dynamics and geothermal modeling of the Western Arabian Shield. [PDF]

Sci Rep, 2023
Melouah O, Ebong ED, Abdelrahman K, Eldosouky AM.   +3 more
europepmc   +1 more source

Accurate Height Determination in Uneven Terrains with Integration of Global Navigation Satellite System Technology and Geometric Levelling: A Case Study in Lebanon

Computation
The technology for determining a point’s coordinates on the earth’s surface using the global navigation satellite system (GNSS) is becoming the norm along with ground-based methods.
Murat Mustafin, Hiba Moussa
doaj   +1 more source

Satellite Gravimetry: A Review of Its Realization. [PDF]

Surv Geophys, 2021
Flechtner F, Reigber C, Rummel R, Balmino G.   +3 more
europepmc   +1 more source

Study on the CHZ-II Gravimeter and Its Calibrations along Forward and Reverse Overlapping Survey Lines. [PDF]

Micromachines (Basel), 2022
Tu H, Liu K, Sun H, Cui Q, Yuan Y, Liu S, He J, Liu L.   +7 more
europepmc   +1 more source

Conformity of the NASADEM_HGT and ALOS AW3D30 DEM with the Altitude from the Brazilian Geodetic Reference Stations: A Case Study from Brazilian Cerrado. [PDF]

Sensors (Basel), 2021
Bettiol GM, Ferreira ME, Motta LP, Cremon ÉH, Sano EE.   +4 more
europepmc   +1 more source

Digitizing Legacy Gravimetric Data Through GIS and Field Surveys: Toward an Updated Gravity Database for Kazakhstan

Geosciences
This study presents the digitization and integration of Kazakhstan’s legacy gravimetric maps at a scale of 1:200,000 into a modern geospatial database using ArcGIS.
Elmira Orynbassarova, Katima Zhanakulova, Hemayatullah Ahmadi, Khaini-Kamal Kassymkanova, Daulet Kairatov, Kanat Bulegenov   +5 more
doaj   +1 more source

Evaluation of a Soviet-Era Gravimetric Survey Using Absolute Gravity Measurements and Global Gravity Models: Toward the First National Geoid of Kazakhstan

Geosciences
Determining a high-precision national geoid is a fundamental step in modernizing Kazakhstan’s vertical reference system. However, the country’s vast territory, complex topography, and limited coverage of modern terrestrial and airborne gravimetric ...
Daniya Shoganbekova, Asset Urazaliyev, Roman Sermiagin, Serik Nurakynov, Magzhan Kozhakhmetov, Nailya Zhaksygul, Anel Islyamova   +6 more
doaj   +1 more source

Geoid determination using airborne gravity vectors

Earth, Planets and Space
In traditional airborne gravimetry, the vertical component of the gravity vector is used as an approximation of the measured magnitude of the gravity vector, which enters the determination of the local geoid.
Mehdi Goli, Ismael Foroughi, Spiros Pagiatakis, Stephen Ferguson, Pavel Novák   +4 more
doaj   +1 more source