Statistics – Computation
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusm.g21a..03r&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #G21A-03
Statistics
Computation
1206 Crustal Movements: Interplate (8155), 1229 Reference Systems, 1239 Rotational Variations
Scientific paper
The International Earth Rotation Service (IERS) was established in 1987 by the International Astronomical Union (IAU) and the International Union of Geodesy and Geophysics (IUGG). Over the last years the availability of and the easy access to highly accurate and consistent products of the IERS has become of vital importance for geodetic, geodynamic and geophysical projects. Future research and in particular the new satellite missions (CHAMP, GRACE, GOCE, JASON-1 etc.) will require an accurate global reference frame as a crucial basis to accomplish their scientific goals, be it for precise orbit determination, moni-toring of sea level change or other geodynamic and geophysical purposes. The IERS is responsible for the appropriate combination of the IGS, IVS, ILRS technique centre (TC) products into official IERS products as well as for the long-term and internal consistency of these official products. The responsibilities of the IERS to establish and maintain the celestial and terrestrial reference frames and supply the earth orientation parameter se-ries are taken over by the corresponding IERS product centres ICRS Cen-tre, ITRS Centre and EO Centre. The Rapid Service/Prediction Centre with its publication of twice weekly bulletins of preliminary and predicted earth orientation parameters complete the wide range of products. The Global Geophysical Fluids Centre with its 8 special bureaus provide relevant geophysical data sets and related computational results to the sci-entific community which are the base for e.g. appropriate corrections models for atmospheric, oceanic and hydrological influences on IERS products. Under the guidance of the IERS Conventions Editorial Board the Conven-tion Centre continue the IERS conventional models, constants and stan-dards. The Analysis Coordinator will monitor the TC and PC activities to ensure the quality and timeliness of the products, whereas the methods of integrating the different observation techniques into a consistent global observing sys-tem of the Earth will be developed by the Combination Research Centres.
Dick Wolfgan R.
Richter B. D.
Vondrák Jan
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