Results 231 to 240 of about 1,421,677 (272)

Secular Geoid Rate from GRACE for Vertical Datum Modernization

2010
GRACE-derived geoid rates are studied for North-America, where the adjustment of the Earth to ancient ice sheets causes a secular geoid increase up to 1.3 mm/year. These significant geoid changes are of particular interest for establishing a new geoid-based vertical datum in Canada and other high accuracy applications.
van der Wal, W, Sideris, MG, Wu, P, Rangelova, E   +3 more
openaire   +2 more sources

The Vertical Datum and Local Geoidal Models in Uruguay

2002
This paper presents the historical evolution, the present situation of the Uruguayan Vertical Datum, and the related geoidal models as a contribution to the definition of a continental Vertical Datum in the frame of SIRGAS Project.
W. H. Subiza Piña, H. Rovera Di Landro, L. Turban   +2 more
openaire   +1 more source

Towards the Establishment of an Indonesian Unified Vertical Datum

2002
As the most numerous archipelago country in the world (consisting of more than 17 000 islands) Indonesia has a real need for a consistent definition of the vertical datum. So far, the practical realization of a national unified vertical datum for this area has not eventuated because of some critical limitations, among which is the geographical ...
A. Kasenda, A. H. W. Kearsley
openaire   +1 more source

GNSS satellite inter-frequency clock bias estimation and correction based on IGS clock datum: a unified model and result validation using BDS-2 and BDS-3 multi-frequency data

Journal of Geodesy, 2021
Cheng Wang
exaly  

Smoothing Out the Wrinkles in Australia's Aging Vertical Datum

• Vertical datums are a foundational piece of the positioning puzzle that allows us make sense of height measurements - they make it possible to align height data by defining where all heights are zero. But when the vertical datum is unreliable, we lose perspective on which direction is down and this can cause strange things to happen. Water can appear
J., McCubbine, J., McCubbine
openaire   +1 more source

An Update to the Canadian Vertical Datum

Abstracts of the ICA
I. Foroughi, Jianliang Huang, M. Véronneau, C. Robin, Charles Papasodoro   +4 more
semanticscholar   +1 more source

UNIFICATION OF POLISH LOCAL VERTICAL DATUM WITH GLOBAL VERTICAL DATUM

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2011
openaire   +1 more source

Integration of Local Mean Sea Level and Land Vertical Datum over Peninsular Malaysia via Transformation Model

Pure and Applied Geophysics
M. F. Pa'suya, Ami Hassan Md Din, Ramazan Alpay Abbak, N. Talib, M. A. H. Aziz, M. Ramli, M. Hamden, N. M. Yazid   +7 more
semanticscholar   +1 more source

Connecting the Brazilian Vertical System to the International Height Reference Frame by estimating the vertical datum parameters

Journal of South American Earth Sciences
G. Guimarães, Ana Cristina Oliveira Cancoro de Matos, D. Blitzkow   +2 more
semanticscholar   +1 more source

On the satellite clock datum stability of RT-PPP product and its application in one-way timing and time synchronization

Journal of Geodesy, 2022
Shengfeng Gu
exaly