Results 11 to 20 of about 977,590 (212)
Preliminary Unification of Kronsztadt86 Local Vertical Datum with Global Vertical Datum [PDF]
Reports on Geodesy and Geoinformatics, 2015 The study concerns computation of the gravity potential difference between the Kronsztadt86 datum and the global vertical datum. This method is based on the use of ellipsoidal heights from satellite observations, normal heights obtained from the ...
Łyszkowicz Adam +2 more
doaj +5 more sources
Vertical datum transformation grids for Mexico. [PDF]
Sci Data, 2020 AbstractMexico has used two vertical datums—the U.S. National Geodetic Vertical Datum of 1929 (NGVD29) and the North American Vertical Datum of 1988 (NAVD88). Because Mexico started using the NAVD88 as its vertical datum in 2015, most of Mexico’s data is referenced to the NGVD29 and recent high resolution data are referenced to the NAVD88.
Carrera-Hernández JJ.
europepmc +5 more sources
Unification of Vertical Datum In Sabah and Sarawak
Jurnal Teknologi, 2014 The present vertical datums in Sabah and Sarawak (East Malaysia) are based upon various tide gauge measurements of mean sea level over certain period defined locally, are manifested by a physical framework of vertical reference point i.e benchmarks. An effort to establish a unified vertical network in Sabah and Sarawak has undergone very tedious survey
Othman, Anuar H. +4 more
core +4 more sources
Uniciencia, 2004 La introducción de la metodología GPS en aplicaciones topográficas y geodésicas pone en notoria evidencia la clásica separación de sistemas de referencia en horizontal y vertical.
Esteban Dörries, Julio Roldán
doaj +2 more sources
IET Networks, EarlyView., 2022 Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy +4 more
wiley +1 more source
Towards a geoid consistent vertical datum in South Africa [PDF]
, 2022 Traditionally, vertical datums have been realised through mean sea level (MSL) data, at one or more tide gauge station(s), followed by a precise levelling procedure to establish a network of benchmarks.
Mphuthi, Matthews Siphiwe
core +1 more source
Absolute vertical motion of the Amsterdam Ordnance Datum (NAP) [PDF]
Proceedings of the International Association of Hydrological Sciences, 2020 The backbone of the Amsterdam Ordnance Datum (NAP) is a network of about 400 primary subsurface markers. Relative movements between the primary subsurface markers are measured with spirit levelling once in 10–20 years.
R. Reudink +3 more
doaj +1 more source
Efficient modeling of height datum based on GIS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 Since the proposal of Digital Earth, its research and applications are continuing to be deepened, and now Smart City is more indepth implementation of the Digital Earth.
Q. Qiao
doaj +1 more source
Remote Sensing, 2023 The International Association of Geodesy (IAG) aims to establish the International Height Reference System (IHRS) as one of its primary scientific objectives. Central to the realization of the IHRS is global vertical datum unification, which requires the
Ziyu Shen +8 more
doaj +1 more source
THE IMPACT OF SEA LEVEL RISE ON GEODETIC VERTICAL DATUM OF PENINSULAR MALAYSIA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Sea level rise is rapidly turning into major issues among our community and all levels of the government are working to develop responses to ensure these matters are given the uttermost attention in all facets of planning.
A. H. M. Din +4 more
doaj +1 more source