Since the launch of the GOCE satellite on March 17th 2009, a large amount of observation has been collected and needs to be analyzed. Of highest priority are the gradiometer measurements. Gravitational gradiometry measured in a satellite is new and many lessons are to be learnt before one can turn to a global gravity field analysis. Of highest priority is an analysis of the performance of (1) a...

Various Stokes kernel modification methods have been developed over the years. The goal of this paper is to test the most commonly used Stokes kernel modifications numerically by using Alaska as a test area and EGM08 as a reference model. The tests show that some methods are more sensitive than others to the integration cap sizes. For instance, using the methods of Vaníček and Kleusberg or Feat...

Abstract. The characterization of estuarine hydrodynamics primarily depends on knowledge the bathymetry and topography. Here, we present first comprehensive, high-resolution dataset topography Amazon River estuary, world's largest estuary. Our product is based an innovative approach combining spaceborne remote sensing data, extensive processed river depth dataset, auxiliary data. goal with this...

The determination of the orthometric height from geometric leveling has practical difficulties that, despite a number of scientific and technological advances, passed a century without substantial modifications or advances. Currently, the Global Navigation Satellite System (GNSS) has been used with reasonable success for orthometric height determination. With a sufficient number of benchmarks w...

Gravity data gaps in mountainous areas are nowadays often filled in with the data from airborne gravity surveys. Because of the errors caused by the airborne gravimeter sensors, and because of rough flight conditions, such errors cannot be completely eliminated. The precision of the gravity disturbances generated by the airborne gravimetry is around 3-5 mgal. A major obstacle in using airborne ...