With the gravity eld and steady-state ocean circulation explorer (GOCE) (preferably combined with the gravity eld and climate experiment (GRACE)) a new generation of geoid models will become available for use in height determination. These models will be globally consistent, accurate (<3 cm) and with a spatial resolution up to degree and order 200, when expressed in terms of a spherical harmoni...

Satellite gradiometry and its instrumentation is an ultra-sensitive detection technique of the space gravitational gradient (i.e. the Hesse tensor of the gravitational potential). Gradiometry will be of great signiicance in inertial navigation, gravity survey, geodynamics and earthquake prediction research. In this paper, satellite gradiometry formulated as an inverse problem of satellite geode...

one of the most important problems in geodesy is the unification of height datum. generally in geodesy; there are two types of height systems, the geometrical height based on ellipsoid and the physical height based on gravity-defined surface (zhang et al, 2009).local height datum is determined according to mean sea level (msl). in regarding to mismatch of mean sea level and geoid, on the one ha...

using tidal potential, the effect of tide on the gravity field, crustal deformation due to tidal force, and gravity variations resulted from the crustal deformation are presented. tidal potential is divided into constant and periodic (diurnal and semi-diurnal) constituents, and for each constituents crustal displacements in radial, south-north, and east-west directions are computed. the aforeme...

Passive stabilization methods for satellites have undergone extensive research and development. Recently the number of small satellites (satellites less than I 00 kg.) has increased dramatically. This has lead to increased use of passive stabilization methods, such as gravity-gradient The core of a gravity-gradient stabilization system is a deployable boom with a damping mechanism. Traditionall...

Abstract. GOCO06s is the latest satellite-only global gravity field model computed by GOCO (Gravity Observation Combination) project. It based on over a billion observations acquired 15 years from 19 satellites with different complementary observation principles. This combination of measurement techniques key in providing consistently high accuracy and best possible spatial resolution Earth's f...