IAG Opening Address
it is a great pleasure for me to deliver the greetings of the IAG Bureau and the Executive Committee, to the participants of this Joint Meeting of the International Gravity Commission and the International Commission on the Geoid. These two Commissions, together with the Bureau Gravimetrique International and the International Geoid Service, represent the long term structures of our Section III, which deals with the Determination of the Gravity Field. I am glad to see the close cooperation between the two Commissions, established in 1951 and in 1987, respectively, and I thank the Commission President’s Professor Marson and Professor Sünkel for their initiative to meet jointly. The determination of the gravity field, from the very beginning, formed an important part of LAG activities. In reality the basic idea of the “Mitteleuropäische Gradmessung”, founded in 1862 was to investigate the earth’s curvature anomalies in central and southern Europe, which corresponds to the determination of the deflections of the vertical and the geoid. Let me mention, without completeness, some steps towards the determination of the Earth’s gravity field promoted by IAG, and shortly outline the present state.
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