By D. Angermann, H. Drewes, M. Gerstl, R. Kelm, M. Krügel, B. Meisel (auth.), Prof. Dr. Fernando Sansò (eds.)
Every 4 years the foreign organization of Geodesy meets on the IUGG normal meeting and this has regularly been a big occasion for IAG to make the purpose on the place are we going as geodesists either by way of medical construction in addition to when it comes to association. The lawsuits of IAG on the Sapporo 2003 normal meeting are the replicate of our medical achievements, and, as Geodesy is a residing entity like several different technology, lets say it's a strategy to see the image of what we think about our box of purposes in addition to of theoretical speculations. allow us to research this element by way of what are: the article of our learn, the tools we use, the final medical effects we will produce. • Our item: the following i need to take advantage of a pseudo-Helmert definition; the item of Geodesy is understanding the surfaces of the earth: the geometric floor via positioning and e.m. surveying, and the actual floor, i.e the gravity box, through land, marine or satellite tv for pc gravimetry, and their time adaptations. This "object" is of course interlaced with different actual homes of the earth either via deep tactics affecting its floor and during the gravity box in any respect diverse scales from the worldwide to the neighborhood and native, the place so much engineering functions take place.
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Extra resources for A Window on the Future of Geodesy: Proceedings of the International Association of Geodesy IAG General Assembly Sapporo, Japan June 30 – July 11, 2003
9 shows also one additional problem connected to the use of the ITRF. The scale of the network is not constant, but it has regional deficienceis because of unmodelled vertical crustal motions. '**:. ^-*—• data and sea loading from tide gauge data. Loading calculations of the Baltic Sea show that 1 m of uniform layer of water corresponds to 31 nm s~2 in gravity and 11 mm in height. Validity of both calculations has been confirmed by data from the superconducting gravimeter GWR T020 at Metsahovi.
M. P. Souto Fortes Instituto Brasileiro de Geografia e Estatistica (IBGE), Av. Brasil 15671, Rio de Janeiro, Brazil, 21241-051 Abstract. The geocentric reference system for the Americas (SIRGAS) was initially realised for South America only. A GPS campaign in 1995 covered 58 sites. In 2000 these stations were re-observed and the network was extended to North and Central America as well as the Caribbean. The objectives of the project were completed by the establishment of a unified vertical reference system connecting the classical national height systems.
Conclusions and Further Work In conclusion these preliminary results presented in this paper reinforce the view that the British Isles are situated on a stable part of the Eurasian plate. Further studies will be carried out as coordinate time series are extended and more CGPS stations become available in the UK. This should enable a more rigorous assessment of how suitable the ITRF2000 angular velocity, that describes the rigid motion of Eurasia, is for describing the motion of the British Isles.
A Window on the Future of Geodesy: Proceedings of the International Association of Geodesy IAG General Assembly Sapporo, Japan June 30 – July 11, 2003 by D. Angermann, H. Drewes, M. Gerstl, R. Kelm, M. Krügel, B. Meisel (auth.), Prof. Dr. Fernando Sansò (eds.)