Candidates for multiple impact craters?: Popigai and Chicxulub as seen by the global high resolution gravitational field model EGM2008 [PDF]
Solid Earth, 2010 In 2008 the new Earth Gravitational Model (EGM2008) was released. It contains a complete set of spherical harmonic coefficients of the Earth's gravitational potential (Stokes parameters) to degree 2190 and order 2159 and selected orders to degree 2190 ...
J. Klokočník +5 more
doaj +4 more sources
Avaliação da correção gravimétrica do terreno calculada a partir de Modelos Digitais de Elevação e associados ao Sistema Geodésico Brasileiro e ao EGM2008 [PDF]
Revista Agrogeoambiental, 2011 A avaliação dos curtos comprimentos de onda do geopotencial normalmente está vinculada aos efeitos gravimétricos da topografia do terreno. Em vista da ausência de informação altimétrica em resolução adequada, utilizam-se modelos digitais de elevação, os ...
Karoline Paes Jamur +3 more
doaj +2 more sources
Crustal and Upper Mantle Density Structure Beneath the Qinghai-Tibet Plateau and Surrounding Areas Derived from EGM2008 Geoid Anomalies [PDF]
ISPRS International Journal of Geo-Information, 2016 As the most active plateau on the Earth, the Qinghai-Tibet Plateau (TP) has a complex crust–mantle structure. Knowledge of the distribution of such a structure provides information for understanding the underlying geodynamic processes.
Honglei Li, Jian Fang
doaj +2 more sources
Estimation Of Orthometric Height Using EGM2008 and GPS Over Nairobi County and Its Environs [PDF]
Journal of Agriculture, Science and Technology, 2017 Global Navigation Satellite Systems (GNSS) have been used widely in 3-dimensional positioning globally, regionally and locally. Global Positioning System (GPS) is one of the most extensively used GNSS in Earth sciences. GPS which employs World Geodetic System adopted in 1984 (WGS84) as the reference system has extensively been used for height ...
K. E. Kemboi, P. A. Odera
openaire +4 more sources
IMPORTANCE OF PRECISE GRAVITY FIELD MODELING IN DIRECT GEOREFERENCING AND AERIAL PHOTOGRAMMETRY: A CASE STUDY FOR SWEDEN [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Direct georeferencing of airborne mobile mapping systems is developing with unprecedented speed using GNSS/INS integration. Removal of systematic errors is required for achieving a high accurate georeferenced product in mobile mapping platforms with ...
M. Bagherbandi +6 more
doaj +1 more source
Geodesy and Geodynamics, 2023 The availability of many high-degree Global Geopotential Models (GGMs), namely EGM2008, EIGEN-6C4, GECO, SGG-UGM-1, SGG-UGM-2, XGM2019e_2159, and GGMPlus, challenges users regarding which model is best for Vietnam.
Hoa Thi Pham +3 more
doaj +1 more source
Earth and Planetary Physics, 2020 Global geopotential models have not included the very high frequencies of the Earth’s external gravity field. This is called omission error. This omission error becomes more important in mountainous areas (areas with highly variable topography). The work
Paul Gautier Kamto +4 more
doaj +1 more source
Almanya münih bölgesinde gözlemlenen astrojeodezik çekül sapma verilerinin, GGMplus ve EGM2008 global gravite alan modelleri ile karşılaştırılması [PDF]
, 2022 Astrojeodezik sistemlerle gözlemlenen astrojeodezik çekül sapma verisi, yeryuvarının gravite alanı ile ilgili önemli bilgiler sağlaması nedeniyle, yerbilimleri alanında, özellikle jeodezi ve jeofizik gibi bilimsel disiplinlerde, yersel, hava ve uydu ...
Öztürk, Emel Zeray +5 more
core +3 more sources
Geodesy and Cartography, 2020 This study carries out an evaluation of the recent high-degree combined global gravity-field models (EGM2008, EIGEN-6C4, GECO and SGG-UGM-1) over Kenya. The evaluation is conducted using observed geoid undulations (18 data points, mainly in Nairobi area)
Patroba Achola Odera
doaj +1 more source
Impact of datum transformation on local variations of geometric geoid in Niger
Geodesy and Cartography, 2017 In this study, we have conducted an investigation on the impact of the coordinates’ transformation on local variations of geometric geoid. The study area is limited by 1°43′12″ to 4°00′37″ East and 13°01′57″ to 14°31′20″ North in the southwest of the ...
Salissou Ibrahim Yahaya +2 more
doaj +1 more source