Improving EGM2008 by GPS and leveling data at local scale

Improving Egm2008 by Gps and Leveling Data at Local Scale

The development of the Earth Gravitational Model 2008 (EGM2008) model is a significant contribution for modeling the Earth’s gravity and geoid. Recently, it can be confidently used versus geometric models following a simple refinement procedure. Several studies show that, EGM2008 can reach the accuracy of regional or local geoid models after modeling the differences between the GPS-leveling geo...

Estimation of Local Subsidence Using GPS and Leveling Combined Data

The leveling measurements have been traditionally made for the monitoring of ground subsidence, but this technique is known to be not timeand cost-effective. Instead, GPS has been recently used as one of the most convenient and precise techniques for the geodetic applications, in terms of high accuracy monitoring. A GPS monitoring network consisting of 52 GPS stations was set up in Yunlin Count...

Comparing GPS, Optical Leveling and Permanent Scatterers

Subject of this paper is the comparison of the results obtained exploiting the Permanent Scatterers (PS) Technique on ERS DInSAR data with displacement measurements carried out by means of optical leveling and GPS.

Evaluation of the EGM2008 Gravity Field by Means of GPS- Levelling and Sea Surface Topography Solutions

The new EGM2008 global gravity field model is evaluated by comparisons of geoid heights computed from the model with those available at GPS levelling stations in various regions and by computing sea surface topography solutions from the difference between the mean sea surface and the geoid from this model. In order to identify how good the model performs the same tests also are performed for ot...

Troposphere Modeling and Filtering for Precise GPS Leveling