Results 41 to 50 of about 14,203 (319)
Two Case Studies of the Northwestern Argentinean Low: With and without a Coupled Transient Trough
Atmosphere, 2023 The Northwestern Argentinean Low (NAL) intensifies the zonal component of the geopotential gradient to its east, intensifying the meridional wind and moisture flow from the tropics to the subtropics contibuting importantly to the South American Low-Level
Josefina M. Arraut +3 more
doaj +1 more source
The impact of the static part of the Earth's gravity field on some tests of General Relativity with Satellite Laser Ranging [PDF]
Celest.Mech.Dyn.Astron. 86 (2003) 277-294, 2002 In this paper we calculate explicitly the secular classical precessions of the node \Omega and the perigee \omega of an Earth artificial satellite induced by the static, even zonal harmonics of the geopotential up to degree l=20. Subsequently, their systematic errors induced by the mismodelling in the even zonal geopotential coefficients J_l are ...
arxiv +1 more source
Remote Sensing, 2023 In the present study, we first examine the contribution of different, satellite-only or combined, global geopotential models in geoid computation employing the remove–compute–restore approach. For this reason, two test areas of about 100 km2 each, one in
Vassilios N. Grigoriadis +4 more
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A Method for Generating Closely Packed Orbital Shells and the Implication on Orbital Capacity [PDF]
arXiv, 2022 Shell-wise orbital slotting in Low Earth Orbit (LEO) can improve space safety, simplify space traffic coordination and management, and optimize orbital capacity. This paper describes two methods to generate 2D Lattice Flower Constellations (2D-LFCs) that are defined with respect to either an arbitrary degree or an arbitrary degree and order Earth ...
arxiv
Determining the gravity potential with the CVSTT technique using two hydrogen clocks [PDF]
arXiv, 2022 According to general relativity theory (GRT), by comparing the frequencies between two precise clocks at two different stations, the gravity potential (geopotential) difference between the two stations can be determined due to the gravity frequency shift effect.
arxiv
Forecast Assessment of CMA-GFS on the Meteorological Elements in the Northeast Hemisphere
Gaoyuan qixiang, 2023 Based on the daily forecast data initialized at 20:00 （Beijing time） of the CMA global forecast system （CMA-GFS） during the period from October， 2019 to December， 2020， the forecasting quality of the upper air meteorological elements in the Northeast ...
Chunjuan QI, Liujie PAN
doaj +1 more source
Theoretical and Applied Climatology, 2016 The western North Pacific subtropical high (WNPSH) is crucial to the East Asian summer climate, and geopotential height (H) is widely used to measure the WPNSH.
Chao He +6 more
semanticscholar +1 more source
Evaluation of the geopotential value W0LVD of China
Geodesy and Geodynamics, 2017 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
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Earth, Planets and Space, 2018 Belonging to the Cameroon Volcanic Line (CVL), the western part of Cameroon is an active volcanic zone with volcanic eruptions and deadly gas emissions. The volcanic flows generally cover areas and bury structural features like faults.
J. Marcel +4 more
semanticscholar +1 more source
IEEE Access, 2020 Based on the general relativity theory, the geopotential difference can be determined by comparing the change in time difference between precise clocks using the precise point positioning (PPP) time transfer technique, referred to as the relativistic PPP
Chenghui Cai +3 more
doaj +1 more source