Global Gravity Field and Its Temporal Variations: Symposium No. 116 Boulder, CO, USA, July 12, 1995Richard H. Rapp, Anny A. Cazenave, R.S. Nerem In July 1995 the XXI General Assembly of the International Union of Geodesy and Geophysics was held in Boulder, Colorado. At this meeting the International Association of Geodesy (lAG) organized a number of symposia to discuss scientific developments and future directions in a number of areas. One of these symposia was G3, Global Gravity Field and Its Temporal Variations. This symposium consisted of four invited and 36 contributed papers. The contributed papers were given as oral or poster presentations. This proceedings volume represents the written contributions of the four invited papers (appearing as the first four papers in the volume) and 19 additional papers. The authors were asked to limit the length of their paper to approximately ten pages, which, in some cases, did limit what an author wanted to say. The papers in this volume have been placed in the same order as they were presented at the ruGG meeting. A key theme of the symposium is given in the paper by Nerem, Klosko, and Pavlis where they discuss applications of gravity field information in geodesy and oceanography. The significant achievements in determining the gravity field in the ocean areas from satellite altimeter data is discussed by Sandwell, Yale, McAdoo, and Smith. A review of time changes of the Earth's gravity field from terrestrial measurements is given by Lambert et aI. , and from satellite perturbation techniques by Eanes and Bettadpur. A description of new geopotential models is given in the paper by Tapley et al. |
Contents
Applications of Global Gravity Field Models in Geodesy and Oceanography | 1 |
The Role and Capability of Absolute Gravity Measurements in Determining the Temporal | 20 |
The Use of GPS Data for Global Gravity Field Determination 42 | 42 |
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accuracy Ajisai aliasing along-track altimeter data analysis areas block-diagonal Bouguer anomalies computed covariance coverage data sets degree and order derived developed Eanes Earth Earth's gravitational Earth's gravity field effects ellipsoid estimates filter Forsberg free-air anomalies frequency Geodesy Geodetic Geodynamics geoid geoid heights geoid undulations Geophys geophysical geopotential model GEOSAT gravimetry gravity anomalies gravity field gravity model grid harmonic coefficients improved J₂ Klosko Lageos Lageos-1 latitude Lunar Orbiters mass redistribution mean anomalies mean gravity anomalies mean sea surface measurements mgal mission model deviation signals Nerem normal equations observations ocean tide orbit error parameters Pavlis perturbations polar motion potential predicted Rapp reference reference ellipsoid resolution satellite altimetry satellite laser ranging sea surface height sea surface topography solution spherical harmonic Starlette stations surface gravity data Table Tapley technique temporal variations terrestrial gravity tidal TOPEX TOPEX/POSEIDON values vector zonal harmonics