Results 81 to 90 of about 2,285 (222)

Long-Term GNSS Analysis for Local Geodetic Datum After 2011 Tohoku Earthquake

open access: yes, 2017
The current Korean national geodetic reference frame, KGD2002, refers to the fixed epoch at 2002·0 under the assumption that there is no crustal movement of the Korean peninsula.
Tae-Suk Bae, Su-Kyung Kim
core   +1 more source

A comparison of existing transformation models to improve coordinate conversion between geodetic reference frames in Nigeria

open access: yes, 2021
Efficient transformation parameters are key to effective geodetic operations between any systems. With the advancement in technology, an improved interaction between geodetic reference frames has been noticed irrespective of their inherent heterogeneous ...
Ndehedehe, Christopher   +3 more
core   +1 more source

6326 Shades of Georeferencing BIM - Low distortion projections (LDP) for the German Railway [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Beside smart Information Management, Building Information Modeling (BIM) focuses on three-dimensional planning and model coordination. However, 3D CAD/BIM software does not conceptualize geodetic coordinates, which causes systematic deviations between ...
C. Clemen, E. Romanschek
doaj   +1 more source

The Canadian Geodetic Vertical Datum of 2013 (CGVD2013)

open access: yesGeomatica, 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   +1 more source

Towards a Redefinition of the National Geodetic Vertical Datum by the Integrated Geodesy Adjustment- A Viewpoint [PDF]

open access: yes, 1992
Determination of Mean Sea Level (MSL) as a vertical datum for orthometric heights is a vital requirement for the readjustment of the National Geodetic Levelling Network. The vertical datum is defined to be the geoid whereby it's practical realization was
Wan Mohd Akib, Wan Abdul Aziz
core  

Semi-kinematic geodetic reference frame based on the ITRF2014 for Malaysia

open access: yes, 2020
Malaysia is located at the stable part of the tec-tonic Sundaland platelet in SE Asia. The platelet is surrounded in almost every direction by tectonically active convergent boundaries, at which the Philippine Sea, the Australian and the Indian Plates ...
Sohaime, R. (author)   +8 more
core   +1 more source

Approximations of the GOCE error variance-covariance matrix for least-squares estimation of height datum offsets

open access: yesJournal of Geodetic Science, 2012
One main geodetic objective of the European Space Agency’s satellite mission GOCE (gravity field and steady-state ocean circulation explorer) is the contribution to global height system unification.
Gerlach Ch., Fecher Th.
doaj   +1 more source

Towards a new South African geodetic datum

open access: yes, 1989
Bibliography: pages 134-140.The overall scale and orientation of the South African trigonometrical readjustment will depend both on the traditional distances and azimuths and on TRANSIT Doppler observations.
Newling, M
core  

Accuracy assessment of cadastral maps using high resolution aerial photos

open access: yesMATEC Web of Conferences, 2018
A cadastral map is a map that shows the boundaries and ownership of land parcels. Some cadastral maps show additional details, such as survey district names, unique identifying numbers for parcels, certificate of title numbers, positions of existing ...
Alwan Imzahim, Hamed Noor, Husien Haifaa
doaj   +1 more source

On the Definition and Realization of a Global Vertical Datum

open access: yes, 2011
A Global Vertical Datum (GVD) is naturally defined by the geoid, and there is a well-established consensus to adopt Gauss-Bessel-Listing's definition of the geoid (i.e.
Sjöberg, Lars Erik,, L. Sjöberg
core   +1 more source

Home - About - Disclaimer - Privacy