Results 41 to 50 of about 173 (112)

ETH-GQS: An estimation of geoid-to-quasigeoid separation over Ethiopia

Geodesy and Geodynamics, 2022
The determination of accurate orthometric or normal heights remains one of the main challenges for the geodetic community in Ethiopia. These heights are required for geodetic and geodynamic scientific research as well as for extensive engineering ...
Ephrem Y. Belay, Walyeldeen Godah, Malgorzata Szelachowska, Robert Tenzer   +3 more
doaj   +1 more source

Proposed Methodology for Accuracy Improvement of LOD1 3D Building Models Created Based on Stereo Pléiades Satellite Imagery

Remote Sensing, 2022
Three-dimensional city models play an important role for a large number of applications in urban environments, and thus it is of high interest to create them automatically, accurately and in a cost-effective manner.
Ana-Ioana Breaban, Valeria-Ersilia Oniga, Constantin Chirila, Ana-Maria Loghin, Norbert Pfeifer, Mihaela Macovei, Alina-Mihaela Nicuta Precul   +6 more
doaj   +1 more source

Interpolation Grid for Local Area of Iasi City

Present Environment and Sustainable Development, 2014
Definitive transition to GNSS technology of achieving geodetic networks for cadastre implementation in cities and municipalities, enforce establishing a unique way of linking between current measurements and existing geodetic data, with a sufficient ...
Mihalache Raluca Maria, Manescu Andreea
doaj   +1 more source

Harmonization of marine gravity data in Eastern Baltic

Geodesy and Cartography
Marine gravity datasets covering areas of state scale typically are made up of data that has been surveyed over multiple campaigns. These campaigns often take place many years apart, are of varying resolution and accuracy.
Vents Zusevics
doaj   +1 more source

Estimating the geopotential value W0 of the local geoid based on data from local and global normal heights of GPS/leveling points in Vietnam

Geodesy and Cartography, 2013
Currently, the determination of geopotential value W0 of local geoid that best fits local mean sea level at the Zero Tide Gauge Station is getting important in building the National Geoid-Based Vertical System.
Ha Minh Hoa
doaj   +1 more source

Gravity field modelling and gravimetry

Geodesy and Cartography, 2015
The summary of research activities concerning gravity field modelling and gravimetric works performed in Poland in the period of 2011-2014 is presented.
Krynski Jan
doaj   +1 more source

Accuracy assessment of GOCE-based geopotential models and their use for modelling the gravimetric quasigeoid - A case study for Poland

Geodesy and Cartography, 2014
Misja GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) przyczyniła się do znacznego poprawienia znajomości pola siły ciężkości Ziemi. W artykule przedstawiono wyniki oszacowania dokładności anomalii wysokości, wyznaczonych z globalnych ...
Godah Walyeldeen, Szelachowska Malgorzata, Krynski Jan   +2 more
doaj   +1 more source

Vloga kakovostnega višinskega sistema in geoida za izvedbo gnss-višinomerstva : The quality role of height system and geoid model in the realization of gnss heighting [PDF]

Geodetski Vestnik, 2011
V okviru projekta Vzpostavljanje evropskega prostorskega referenčnega sistema v Sloveniji je bila izračunana tudi ploskev testnega geoida. V prispevku bo predstavljena primerjava določitve geoidnih višin iz geoida 2000 in testnega geoida iz leta 2010 ...
Božo Koler, Miran Kuhar, Sandi Berk, Klemen Medved, Ove Omang, Dag Solheim   +5 more
doaj  

Vzpostavitev ESRS v Sloveniji : Realization of ESRS in Slovenia [PDF]

Geodetski Vestnik, 2007
The purpose of the paper is to present the introduction and implementation of the new state reference system in Slovenia. The new system will be a realization of the European reference system ESRS (European Spatial Reference System) in our territory ...
Bojan Stopar
doaj  

Geoid-to-Quasigeoid Separation Computed Using the GRACE/GOCE Global Geopotential Model GOCO02S - A Case Study of Himalayas and Tibet

Terrestrial, Atmospheric and Oceanic Sciences, 2013
The geoid-to-quasigeoid correction has been traditionally computed approximately as a function of the planar Bouguer gravity anomaly and the topographic height.
Mohammad Bagherbandi Robert Tenzer
doaj   +1 more source