Results 1 to 10 of about 1,485 (184)

Geoid undulation modeling through the Cokriging method–A case study of Guayaquil, Ecuador

open access: yesGeodesy and Geodynamics, 2021
The determination of vertical component plays a fundamental role in the initial phase of engineering applications. However, its acquisition is technically and economically demanding, mainly due to the precise heights relative to a reference surface, such
Iván Palacios Orejuela   +4 more
doaj   +2 more sources

Precise Geoid Determination in the Eastern Swiss Alps Using Geodetic Astronomy and GNSS/Leveling Methods. [PDF]

open access: yesSensors (Basel)
Astrogeodetic deflections of the vertical (DoVs) are close indicators of the slope of the geoid. Thus, DoVs observed along horizontal profiles may be integrated to create geoid undulation profiles.
Albayrak M   +4 more
europepmc   +2 more sources

Density modeling of the Escollos Alijos Seamount from inversion of its geoid undulation anomaly

open access: yesGeofísica Internacional, 2014
El Monte Marino Alijos se localiza en el Océano Pacífico nororiental a unos 300 km de la Península de Baja California. La edad y el análisis geoquímico de las rocas volcánicas que coronan este gran monte marino indican magmatismo reciente, que ha ...
Juan García-Abdeslem
doaj   +2 more sources

ADAPTATION OF THE GLOBAL GEOID MODEL EGM2008 ON CAMPANIA REGION (ITALY) BASED ON GEODETIC NETWORK POINTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The knowledge of the geoid undulation, the height of the geoid relative to a given ellipsoid of reference, is fundamental to transform the ellipsoidal heights into orthometric heights.
G. Ferrara, C. Parente
doaj   +1 more source

Combining Global Geopotential Models, Digital Elevation Models, and GNSS/Leveling for Precise Local Geoid Determination in Some Mexico Urban Areas: Case Study

open access: yesISPRS International Journal of Geo-Information, 2021
This work shows improvements of geoid undulation values obtained from a high-resolution Global Geopotential Model (GGM), applied to local urban areas.
Norberto Alcantar-Elizondo   +3 more
doaj   +1 more source

Observation of a local gravity potential isosurface by airborne lidar of Lake Balaton, Hungary [PDF]

open access: yesSolid Earth, 2014
Airborne lidar is a remote sensing method commonly used for mapping surface topography in high resolution. A water surface in hydrostatic equilibrium theoretically represents a gravity potential isosurface.
A. Zlinszky   +6 more
doaj   +1 more source

Determination of the height of Mount Everest using the shallow layer method

open access: yesGeodesy and Geodynamics, 2021
Shallow layer method (SLM) based on the definition of the geoid can determine the gravity field inside the shallow layer. In this study, the orthometric height of Mount Everest (HME) is calculated based on SLM, in which the key is to construct the ...
Youchao Xie   +3 more
doaj   +1 more source

Centimeter Precision Geoid Model for Jeddah Region (Saudi Arabia)

open access: yesRemote Sensing, 2020
In 2014, the Jeddah Municipality made a call for an estimate of a centimetric precision geoid model to be used for engineering and surveying applications, because the regional geoid model available at that time did not reach a sufficient precision.
Alessandra Borghi   +3 more
doaj   +1 more source

World ocean annual mean absolute geostrophic velocity on marine geoid of EIGEN‐6C4 from WOA13

open access: yesGeoscience Data Journal, 2022
This data set was established from two open sources: (a) geoid undulation (N) from EIGEN‐6C4, which is a static global combined gravity field model up to degree and order 2,190, and (b) ‘World ocean geostrophic velocity inverted from World Ocean Atlas ...
Peter C. Chu
doaj   +1 more source

A MATLAB GEODETIC SOFTWARE FOR PROCESSING AIRBORNE LIDAR BATHYMETRY DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The ability to build three-dimensional models through technologies based on satellite navigation systems GNSS and the continuous development of new sensors, as Airborne Laser Scanning Hydrography (ALH), data acquisition methods and 3D multi-resolution ...
M. Pepe, G. Prezioso
doaj   +1 more source

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