Ebook: Global Gravity Field and Its Temporal Variations: Symposium No. 116 Boulder, CO, USA, July 12, 1995

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.

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This book contains most of the papers presented at the G3 Symposium (Global and Gravity Field and Its Temporal Variations) sponsored by the International Association of Geodesy at the XXI General Assembly of the IUGG held in July 1995, Boulder, Colorado, USA. Four papers review the following areas: applications of global gravity models in geodesy and oceanography, high resolution gravity information in the oceans from satellite altimeter data, and temporal variations of the gravity field measured by terrestrial and satellite techniques. Other papers provide new results and future plans, for example, in the areas: global potental coefficient models, new terrestrial and altimeter-derived anomaly data, improved estimations Techniques, and use of GPS data in gravity field modeling.