Results 221 to 230 of about 1,421,677 (272)

Local Effects in the Brazilian Vertical Datum

2002
Nowadays, determining the topography of Mean Sea Level (Sea Surface Topography — SST) at the tide gauge station and its temporal variation is one of the most important aspects of defining a vertical Datum. Different approaches are used for this purpose: Oceanographic approach; Satellite altimetry associated with geostrophic levelling; Gravity ...
S. R. C. de Freitas, S. H. S. Schwab, E. Marone, A. O. Pires, R. Dalazoana   +4 more
openaire   +1 more source

Vertical Datum Transformations across the Australian Littoral Zone

Journal of Coastal Research, 2015
ABSTRACT Keysers, J.H.; Quadros, N.D., and Collier, P.A., 2015. Vertical datum transformations across the Australian littoral zone. There is a growing demand in Australia for better information to assess the risks associated with sea-level rise and coastal inundation.
Jessica H. Keysers, Nathan D. Quadros, Philip A. Collier   +2 more
openaire   +1 more source

Brazilian Vertical Datum Monitoring - Vertical Land Movements and Sea Level Variations

2007
UFPR’s Geodetic Instrumentation Laboratory carried out several geodetic campaigns at Brazilian Vertical Datum during the last nine years. The last campaign performed in the first semester of 2005 had as main goals: calibration of two sea level sensors of the tide gauge station; periodic GPS observations at one SIRGAS station, used to materialize the ...
R. Dalazoana, S. R. C. de Freitas, J. C. Baez, R. T. Luz   +3 more
openaire   +1 more source

Vertical datum determination of Yugoslavia

1990
In this work the absolute height determination of origin point in Maglaj is ...
Feil, Ladislav, Klak, Stjepan, Roić, Miodrag, Rožić, Nevio   +3 more
openaire   +2 more sources

Unification of Regional Vertical Datums Using GPS

1996
The Baltic Sea Level (BSL) GPS project, IAG SSG 5.147, and its long-term scientific goals were described in details by Kakkuri et al. (1990). One of the goals is to unify the vertical datums of the countries surrounding the Baltic Sea. Two BSL GPS campaigns were performed in order to achieve the goals: a two week campaign in October 1990 (the first ...
Ming Pan, Lars E. Sjöberg
openaire   +1 more source

Reconciling vertical datum for seamless hydrographic data integration

SPIE Proceedings, 2005
A reconciling vertical datum is fundamental for the seamless integration of multi-source hydrographic data. Based on the analyses of the current vertical datums used for hydrograph, this paper presents a new scheme to create a reconciling vertical datum.
Lihua Zhang, Qing Zhu, Jingyang Bao, Yanchun Liu   +3 more
openaire   +1 more source

Short-Term Vertical Datum Variability and Vertical Crustal Movements in East Asia

Marine Geodesy, 2005
Field biological and geomorphological observations in certain East Asia coasts permit definition of Mean Sea Level (MSL) with an accuracy of ∼10 cm, that is, a vertical geodetic datum, as well as recognition of the MSL of fossil shorelines, up to a few thousand years old, mainly associated with tectonic/seismic effects.
Stiros, S. C., Pirazzoli, P. A.
openaire   +3 more sources

The New Yugoslav Vertical Datum

1990
New Yugoslav vertical datum is presented and analysis of the best heights system. Connection of tidal stations along the Adriatic coast, accuracy of leveling and influence of gravity field is analyzed.
Hećimović, Željko, Bačić, Željko, Bilajbegović, Asim   +2 more
openaire   +1 more source

Separation between reference surfaces of selected vertical datums

Bulletin Géodésique, 1994
This paper discusses the separation between the reference surface of several vertical datums and the geoid. The data used includes a set of Doppler positioned stations, transformation parameters to convert the Doppler positions to ITRF90, and a potential coefficient model composed of the JGM-2 (NASA model) from degree 2 to 70 plus the OSU91A model from
openaire   +1 more source

Fixed Gravimetric BVP for the Vertical Datum Problem

2011
This paper discusses advantages of the fixed gravimetric boundary value problem (FGBVP) for precise gravity field modeling that is necessary for a unification of local vertical datums (LVDs). Our objective is to show how inconsistencies of input gravity data due to shifts and tilts of LVDs can influence precise solutions.
R. Čunderlík, Z. Fašková, K. Mikula
openaire   +1 more source