Results 41 to 50 of about 5,019 (198)
Land subsidence significantly impacts the accuracy of the National Elevation Datum in China. In order to solve this issue, a dynamic and economical way was proposed to update the National Elevation Datum with the assistance of InSAR in the North China ...
Wenke Zheng +4 more
doaj +1 more source
New solutions for the geoid potential W0 and the Mean Earth Ellipsoid dimensions
Earth Gravitational Models (EGMs) describe the Earth’s gravity field including the geoid, except for its zero-degree harmonic, which is a scaling parameter that needs a known geometric distance for its calibration. Today this scale can be provided by the
Sjöberg L. E.
doaj +1 more source
Evaluation of the geopotential value W0LVD of China
Estimation of the zero-height geopotential value W0LVD for the CVD (China Vertical Datum) plays a fundamental role in the connection of traditional height reference systems into a global height system.
Lin He, Yonghai Chu, Nan Yu
doaj +1 more source
Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field
ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford +3 more
wiley +1 more source
From celestial objects to every feature on Earth, geodesy provides a reference frame and is the foundation for surveying, mapping, and other geoscience activities.
Shanker KC, Tri Dev Acharya
doaj +1 more source
ABSTRACT Load‐frequency control (LFC) comprises a primary process in interconnected electrical power systems, playing a critical role in maintaining the stability and reliability of the electrical grid. It is of paramount importance that the designed controller functions in an optimal manner, particularly with regard to the compression of area ...
Bora Çavdar +2 more
wiley +1 more source
Mean sea level studies from tide gauge and satellite altimetry time series looking for the integration of Brazilian Vertical Network to SIRGAS [PDF]
In Geodesy, the monitoring of sea level plays an important role in the realization of global reference systems and allows the integration of available data from classical vertical networks, whose Vertical Datum is usually defined by the Mean Sea Level ...
Roberto T. Luz +2 more
doaj
Marine gravimetry provides high-quality gravity measurements, particularly in coastal areas. After the update of new sensors in GFZ’s air-marine gravimeter Chekan-AM, gravimetry measurements showed a significant improvement from the first new campaign ...
Biao Lu +4 more
doaj +1 more source
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello +2 more
wiley +1 more source
Tidal datums are key components in NOAA’s Vertical Datum transformation project (VDatum), which enables effective vertical transformation of the water level between tidal, orthometric, and ellipsoid -based three-dimensional reference systems.
Wei Wu +5 more
doaj +1 more source

