Results 41 to 50 of about 948 (186)
Pembuatan Model Geoid Lokal Menggunakan Data Gayaberat Airborne dan Model Geoid Global (EGM2008) (Studi Kasus: Pulau Bali) [PDF]
, 2022 Sistem GPS (Global Positioning System) sudah banyak diaplikasikan, terutama yang terkait dengan aplikasi-aplikasi yang menuntut informasi tentang posisi. Geoid merupakan permukaan dasar geodesi fisik yang didefinisikan sebagai permukaan ekipotensial yang
Kusum, Muhammad Rafly Putra +2 more
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Vertical Deflections and Gravity Disturbances Derived from HY-2A Data
Remote 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 +1 more source
Geodetski VestnikIn Algeria, the lack of dense and accurate gravity data has restricted the production of a precise geoid model, which serves as the means of deriving orthometric heights from GPS observations.
Aicha Derkaoui, Messaoud Hacini
doaj +1 more source
Terrestrial, Atmospheric and Oceanic Sciences, 2013 In this paper we present the concepts and realization of the shallow-layer Shen geoid determination method, which is quite different from the classical geoid modeling methods (Stokes¡¦ method, Molodenskii¡¦s method, etc.), for determining the global or ...
WenBin Shen Jiancheng Han
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Terrestrial, Atmospheric and Oceanic Sciences, 2022 This study validates the ultra-high-degree gravity field models in terms of the internal error estimate and the external precision. Internal error estimate is evaluated by geoid error degree variance and cumulative geoid height errors.
Huaqing Yuan +4 more
doaj +1 more source
Različni postopki za izračun odklonov navpičnice: primer območja pod Krvavcem ( = Different aspects of the computation of vertical deflection: case study in the area of Krvavec) [PDF]
Geodetski Vestnik, 2018 In coordinate calculation from terrestrial measurements, the reduction due to the Earth's gravity field should be one of the main topics of consideration. The problem is of extreme importance especially in steep areas, where geoid surface is not parallel
Polona Pavlovčič Prešeren +4 more
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Geoinformatics FCE CTU, 2015 The combined gravity field model EIGEN-6C4 (Förste et al., 2014) is the latest combined global gravity field model of GFZ Potsdam and GRGS Toulouse. EIGEN-6C4 has been generated including the satellite gravity gradiometry data of the entire GOCE mission (
Jan Kostelecký +4 more
doaj +1 more source
Brazilian Journal of Oceanography, 2012 The use of geoid models to estimate the Mean Dynamic Topography was stimulated with the launching of the GRACE satellite system, since its models present unprecedented precision and space-time resolution. In the present study, besides the DNSC08 mean sea
Alexandre Bernardino Lopes +1 more
doaj +1 more source
Lake Morphometry Influences the Accuracy of SWOT Estimates of Water Level
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Lake water surface elevation (WSE) data in Sweden are needed to understand water supply and ecosystem services provision. SWOT can complement WSE in situ measurements, but the influence of lake shape on its accuracy remains unclear. We explore the performance of the SWOT pixel‐cloud and this influence across 62 lakes from August 2023 to ...
David Lindao, Fernando Jaramillo
wiley +1 more source
Is Australian data really validating EGM2008, or is EGM2008 just in/validating Australia data? [PDF]
, 2009 The tide-free release of the EGM2008 combined global geopotential model and its tide-free pre-release PGM2007A are compared with Australian land, marine and airborne gravity observations, co-located GPS-levelling on the [admittedly problematic ...
Featherstone, Will +3 more
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