Results 11 to 20 of about 742 (185)

Polynomial interpolation methods in development of local geoid model

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2018
In geodesy three surfaces, the physical surface of the earth, the geoid and the reference ellipsoid are encountered giving rise to orthometric height (h), the ellipsoidal height (H) and the geoidal separation (N).
Rabindra Kumar Das   +3 more
doaj   +1 more source

Implementation of CORS GNSS and local geoid for precise orthometric height determination in land subsidence region (a case study in Semarang City)

open access: yesJournal of Geospatial Information Science and Engineering, 2019
Geoid has an important role in converting geodetic heights to physical heights, both in orthometric height system and normal height systems. At present, Semarang City already has gravimetric geoid with centimeter-level precision.
Laode M Sabri
doaj   +1 more source

Geoid heights in Costa Rica, Case of Study: Baseline Along the Central Pacific Zone

open access: yesIngeniería, 2019
A precise orthometric height (H) and orthometric height difference (ΔH) determination is required in many fields like construction, geodesy and geophysics.
Alonso Vega Fernádez   +2 more
doaj   +1 more source

Regional Mapping of the Geoid Using GNSS (GPS) Measurements and an Artificial Neural Network

open access: yesRemote Sensing, 2011
The determination of the orthometric height from geometric leveling has practical difficulties that, despite a number of scientific and technological advances, passed a century without substantial modifications or advances.
Reginaldo Macedônio da Silva   +4 more
doaj   +1 more source

MARINE GEOID UNDULATION ASSESSMENT OVER SOUTH CHINA SEA USING GLOBAL GEOPOTENTIAL MODELS AND AIRBORNE GRAVITY DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Global geopotential models (GGMs) are vital in computing global geoid undulations heights. Based on the ellipsoidal height by Global Navigation Satellite System (GNSS) observations, the accurate orthometric height can be calculated by adding precise and ...
N. M. Yazid   +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

Accuracy of Geoid Heights from Modified Stokes Kernels [PDF]

open access: yesGeophysical Journal International, 1969
Summary The dependence of the r.m.s. geoid height error on the degree of the first term in the zonal harmonics expansion of the kernel in Stokes’s integration formula is examined. It is shown that kernels with the lower degree terms removed have some advantage over the conventional kernel when a significant error in the zeroth term of the gravity ...
L. Wong, R. Gore
openaire   +1 more source

SISTEM TINGGI DALAM REALISASI KADASTER 3D DI INDONESIA: TANTANGAN, PERMASALAHAN DAN ALTERNATIF SOLUSI

open access: yesBHUMI: Jurnal Agraria dan Pertanahan, 2018
One important componentin the3Dcadastral system isthe definition of height component. The height of a cadastral objectis the height above a certain height reference field. Based on theconceptandits use, there aremany height reference fields.
Leni S Heliani   +2 more
doaj   +1 more source

Pot do novega modela geoida v Sloveniji ( = Towards a new geoid model of Slovenia) [PDF]

open access: yesGeodetski Vestnik, 2017
The geoid model is a component of the national coordinate system. This paper presents the main concept and role of the geoid within geodesy and other geo-sciences.
Miran Kuhar
doaj   +1 more source

Analysis of Determining Geoid Height Values in Urban Areas

open access: yesIOP Conference Series: Earth and Environmental Science, 2023
Abstract Floods have a significant impact on human life. To reduce the risk due to flooding, mitigation is needed. Mitigation can be done when information about the flood model has been mapped. Flood modeling requires primary data in height values with reasonable accuracy.
D N I Sari   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy