Results 1 to 10 of about 935,704 (295)

Vertical Deflections and Gravity Disturbances Derived from HY-2A Data

open access: yesRemote Sensing, 2020
The first Chinese altimetry satellite, Haiyang-2A (HY-2A), which was launched in 2011, has provided a large amount of sea surface heights which can be used to derive marine gravity field.
Xiaoyun Wan   +3 more
doaj   +4 more sources

An Improved Method for Dynamic Measurement of Deflections of the Vertical Based on the Maintenance of Attitude Reference

open access: yesSensors, 2014
A new method for dynamic measurement of deflections of the vertical (DOV) is proposed in this paper. The integration of an inertial navigation system (INS) and global navigation satellite system (GNSS) is constructed to measure the body’s attitude with ...
Dongkai Dai   +3 more
doaj   +4 more sources

Height connection across sea by using satellite altimetry data sets, ellipsoidal heights, astrogeodetic deflections of the vertical, and an Earth Gravity Model

open access: yesGeodesy and Geodynamics, 2023
Islands and the mainland are separated by seas, and the distances between them might be so long that the height on the mainland cannot be exactly translated to the islands, resulting in different height systems on the mainland and the islands.
Jianbo Wang   +5 more
doaj   +3 more sources

Lunar deflections of the vertical and their distribution

open access: yesNatural Science, 2011
The deflection of the vertical reflects the mass distribution and density anomaly of celestial bodies. Lunar deflections of the vertical include directional information of the Moon’s gravity field. SGM90d, recovered from SELENE mission, revealed the lunar far side gravity field for the first time in history owes to 4-way Doppler data. Lunar deflections
Jinyun Guo
exaly   +3 more sources

Digital zenith camera for vertical deflection determination

open access: yesGeodesy and Cartography, 2012
Recent accomplishments in advancement of accurate astrometric reference star catalogues, development of digital imaging technology, high accuracy tiltmeter technology, and geocentric coordinate availability provided by GNSS, have made possible accurate ...
Māris Abele   +5 more
doaj   +2 more sources

Global marine gravity anomalies from multi-satellite altimeter data

open access: yesEarth, Planets and Space, 2022
In this study, China’s first altimeter satellite Haiyang-2A (HY-2A) data combined observations from CryoSat-2, SARAL/AltiKa, and Jason-1&2 are used to calculate the global (60°S–60°N) marine deflections of the vertical and gravity anomalies named Global ...
Xiaoyun Wan   +5 more
doaj   +1 more source

Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics

open access: yesShock and Vibration, 2023
In this paper, a vehicle-bridge coupling dynamic model is established considering the vertical wheel-rail tight contact and the lateral simplified wheel-rail creeping.
Tangying Bai   +5 more
doaj   +1 more source

Modeling the vehicle-bridge interaction in the conditions of road level deformation [PDF]

open access: yesPrzegląd Komunikacyjny, 2021
: The paper presents a method and results of numerical simulations of dynamic interactions between vehicles and the bridge structure, which has defects in the form of excessive permanent deflections of their spans.
Mieszko Kużawa   +4 more
doaj   +1 more source

Study of rivulet deflections and interactions on the surface of heated liquid film [PDF]

open access: yesE3S Web of Conferences, 2023
Study of rivulet deflections and interactions on the surface of vertical flowing heated liquid film at Reynolds number Re = 75 and initial temperature T0 = 25oC has been carried out.
Semionov Vitaliy V.   +3 more
doaj   +1 more source

Effects of Interferometric Radar Altimeter Errors on Marine Gravity Field Inversion

open access: yesSensors, 2020
The traditional altimetry satellite, which is based on pulse-limited radar altimeter, only measures ocean surface heights along tracks; hence, leads to poorer accuracy in the east component of the vertical deflections compared to the north component ...
Xiaoyun Wan   +5 more
doaj   +1 more source

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