Articles in the Geodesy Category

Apr 2017 | No Comment

Creating of national reference frame is not an easy task because Earth’s crust continuously undergoes various deformations. Repeated geodetic determinations of the positional relationships and elevations of points on the earth’s surface at certain time intervals make it possible…

Dec 2016 | No Comment

For many developing countries such as Uganda, the potential of GNSS has not been fully exploited due to the absence of accurate regional gravimetric quasi-geoid models…

Dec 2016 | No Comment

Due to the increasing probability of rock falls and landslides caused by environmental change, the necessity for monitoring of geo-risk areas is growing…

Aug 2016 | No Comment

For security purposes and safe and flawless operation of the Nuclear Power Plant (NPP) “Kozloduy” at the end of the last century it was given the task to build a monitoring system. As a major component of this system was to be built precise geodynamic…

Apr 2016 | No Comment

Along with the damage to buildings and infrastructure, the April 25, 2015 Mw7.8 Gorkha earthquake caused quite significant deformation over a large area in…

Jun 2015 | No Comment

Time originally determined by the standard clock is called proper time, and the time calculated under the relativistic framework is called coordinate time. The time conversion calculated under the relativistic framework comes to precession, nutation, and polar motion correction models which calculate…

May 2015 | No Comment

The current National Geodetic Vertical Network (NGVN) in the Saudi Arabia is based mainly upon a series of leveling runs carried out during 1966 – 1970…

Feb 2015 | No Comment

VLBI plays a unique role in the practical realization and maintenance of the International Celestial Reference Frame (ICRF) and International Terrestrial Reference Frame (ITRF), it is also the only technique which provides the full set of Earth Orientation Parameters (EOP)[1]…

Feb 2015 | No Comment

Reference systems are used in Geodesy, Astronomy and Spatial information science extensively. In addition to well established systems like ICRF, MOD, TOD, and WGS84, various other systems are available that arise from intermediate or approximate transformations [6]…

Jan 2015 | No Comment

Geospatial Information Authority of Japan (GSI) has developed and operated nationwide GNSS continuous observation network, GEONET, since 1996. The GSI has gradually updated system of GEONET and the upgrade has enabled GEONET to receive more and more signals…