Results 1 to 10 of about 177,091,919 (225)

Bathymetry inversion using the deflection of the vertical: A case study in South China Sea

open access: yesGeodesy and Geodynamics, 2022
The deflection of the vertical is one of the essential products of altimetry. However, unlike gravity and vertical gravity gradients, it is seldom used in bathymetry inversion.
Xiaoyun Wan   +5 more
doaj   +3 more sources

A Comparative Study of the Applied Methods for Estimating Deflection of the Vertical in Terrestrial Geodetic Measurements

open access: yesSensors, 2016
This paper compares three different methods capable of estimating the deflection of the vertical (DoV): one is based on the joint use of high precision spirit leveling and Global Navigation Satellite Systems (GNSS), a second uses astro-geodetic ...
Luca Vittuari   +6 more
doaj   +3 more sources

A Novel All-Weather Method to Determine Deflection of the Vertical by Combining 3D Laser Tracking Free-Fall and Multi-GNSS Baselines

open access: yesRemote Sensing, 2022
The bright stars in the clear night sky with weak background lights should be observed in the traditional deflection of the vertical (DOV) measurement so that the DOV cannot be observed under all-weather conditions, which limits its wide applications. An
Xin Jin   +4 more
doaj   +3 more sources

Computing the Deflection of the Vertical for Improving Aerial Surveys: A Comparison between EGM2008 and ITALGEO05 Estimates

open access: yesSensors, 2016
Recent studies on the influence of the anomalous gravity field in GNSS/INS applications have shown that neglecting the impact of the deflection of vertical in aerial surveys induces horizontal and vertical errors in the measurement of an object that is ...
Riccardo Barzaghi   +3 more
doaj   +3 more sources

The ellipsoidal corrections for boundary value problems of deflection of the vertical with ellipsoid boundary

open access: yesGeodesy and Geodynamics, 2017
The boundary value problem of deflections of vertical with ellipsoid boundary is studied in the paper. Based on spherical harmonic series, the ellipsoidal corrections for the boundary value problem are derived so that it can be well solved.
Xiangchao Meng, Jinhai Yu, Yongchao Zhu
doaj   +3 more sources

Measuring the Deflection of the Vertical via Local Reference Point Surveying and Pointing Calibration of a VLBI Telescope: A Case Study at the Urumqi Station

open access: yesEarth and Space Science, 2021
According to Newton's law of universal gravitation, the movement of matter and the change in density cause a gravitational variation. Due to the anisotropic distribution of matter, the vertical and the normal directions at a point on the ground are ...
Zhibin Zhang   +5 more
doaj   +2 more sources

Performance of Haiyang-2 Derived Gravity Field Products in Bathymetry Inversion

open access: yesRemote Sensing, 2022
Haiyang-2A (HY-2A), China’s first altimetry satellite mission, was launched more than ten years ago, and its follow-up satellites, HY-2B, HY-2C, and HY-2D, have also been launched.
Xiaoyun Wan   +3 more
doaj   +1 more source

Research on the influence of vertical deflection to the line geodetic network - prism method [PDF]

open access: yesGeodetski Glasnik, 2017
This work was carried out calculating and research the deflection of the vertical on line traverse in the geodetic network of the City of Sarajevo. Determination of vertical deflection is done using Quadar. Computations consist of two segments. The first
Jasmin Taletović, Dževad Krdžalić
doaj   +1 more source

Improved Bathymetry in the South China Sea from Multisource Gravity Field Elements Using Fully Connected Neural Network

open access: yesJournal of Marine Science and Engineering, 2023
Traditional bathymetry inversion methods that rely on an altimetry-derived gravity anomaly (GA) and/or a vertical gravity gradient anomaly (VGG) have been widely used for bathymetry prediction in the South China Sea.
Qianqian Li   +5 more
doaj   +1 more source

Wind Deflection Response Control of the Sealing Nets across Transmission Lines with Inclined Guy Cable

open access: yesZhejiang dianli, 2022
The wind deflection of the sealing net across the transmission line is great under the slipstream of high-speed train. Based on the existing research, the paper proposes a method to reduce the wind deflection response of the sealing net structure by ...
CAO Meigen   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy