Results 11 to 20 of about 96,694 (223)
Remote Sensing, 2020 Unification of the global vertical datum has been a key problem to be solved for geodesy over a long period, and the main challenge for a unified vertical datum system is to determine the vertical offset between the local vertical datum and the global ...
Panpan Zhang +7 more
doaj +3 more sources
Journal of Geodetic Science, 2012 The performance of GOCE-based geopotential models is assessed for the estimation of offsets for three regional vertical datums in Canada with respect to a global equipotential surface using the GNSS benchmarks from the first-order vertical control ...
Hayden T. +3 more
doaj +2 more sources
On the connection of the Ecuadorian Vertical Datum to the IHRS
Journal of Geodetic Science, 2023 In this work, the determination of the discrepancy between the Ecuadorian Vertical Datum (EVD) and the International Height Reference System (IHRS) is presented.
Carrión José L. +2 more
doaj +2 more sources
Determination of geopotential of local vertical datum surface
Geo-spatial Information Science, 2003 This paper first develops the approaches to determine the geopotential of the local mean sea level, and then investigates the offset of the 1985 vertical datum surface defined by the mean sea level of Yellow Sea at the Dagang Tide Gauge in Qingdao city using the developed approaches and GPS/leveling data.
Wei Ziqing, Jiao Wenhai
openaire +3 more sources
How Significant is the Dynamic Component of the North American Vertical Datum?
Journal of Geodetic Science, 2012 One of the main current geodetic activities in North America is the definition and establishment of a geoid-based vertical datum that will replace the official CGVD28 and NAVD88 datums in Canada and the USA, respectively.
Rangelova E. +2 more
doaj +2 more sources
The Canadian Geodetic Vertical Datum of 2013 (CGVD2013)
Geomatica, 2016 The Canadian Geodetic Vertical Datum of 2013 (CGVD2013) is the first major update to the vertical datum in Canada in almost 100 years. Canada is not only moving to a new vertical datum, but it is also using a modernized approach to realize it. The modernization of the height reference system is necessary to make it compatible with Global Navigation ...
Marc Véronneau, Jianliang Huang
openaire +3 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
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
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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