[Altamimi Z., Collilieux X., Legrand J., Garayt B., and Boucher C. (2007). ITRF2005: A new release of the International Terrestrial Reference Frame based on time series of station positions and Earth Orientation Parameters, J. Geophys. Res., doi: 10.1029/2007JB004949, 112, B09401.10.1029/2007JB004949]Search in Google Scholar
[Böhm J., Hobiger T., Ichikawa R., Kondo T., Koyama Y., Pany A., Schuh H., and Teke K. (2010). Asymmetric tropospheric delays from numerical weather models for UT1 determination from VLBI Intensive sessions on the baseline Wettzell-Tsukuba, J. Geod., doi: 10.1007/s00190-010-0370-x, in press.10.1007/s00190-010-0370-x]Search in Google Scholar
[Eanes R. J. and Watkins M. M. (1994). Earth orientation and site coordinates from the Center for Space Research solution, in IERS Technical Note, 17, Observatoire de Paris, pp. L7-L11.]Search in Google Scholar
[Eubanks T. M. (1993). Variations in the orientation of the Earth, in Contributions of Space Geodesy in Geodynamics: Crustal Dynamics, Smith D. E. and Turcotte D. L. (eds.), AGU Geodynamics Series, 24, pp. 1-54.10.1029/GD024p0001]Search in Google Scholar
[Griffiths J. and Ray J. R. (2009). On the precision and accuracy of IGS orbits, J. Geod., doi: 10.1007/s00190-008-0237-6, 83, 277-287.10.1007/s00190-008-0237-6]Search in Google Scholar
[Gross R. S. (2006). Combinations of Earth orientation measurements: SPACE2005, COMB2005, and POLE2005, JPL Pub. 06-3, Jet Propulsion Lab., Pasadena, Calif., available at ftp://euler.jpl.nasa.gov/keof/combinations/2005/. ftp://euler.jpl.nasa.gov/keof/combinations/2005/]Search in Google Scholar
[Gross R. S. (2007). Combinations of Earth orientation measurements: SPACE2006, COMB2006, and POLE2006, JPL Pub. 07-5, Jet Propulsion Lab., Pasadena, Calif., available at ftp://euler.jpl.nasa.gov/keof/combinations/2006/. ftp://euler.jpl.nasa.gov/keof/combinations/2006/]Search in Google Scholar
[Gross R. S., Eubanks T. M., Steppe J. A., Freedman A. P., Dickey J. O., and Runge T. F. (1998). A Kalman-filter-based approach to combining independent Earth-orientation series, J. Geod., doi: 10.1007/s001900050162, 72(4), 215-235.10.1007/s001900050162]Search in Google Scholar
[Gross R. S., Fukumori I., and Menemenlis D. (2005). Atmospheric and oceanic excitation of decadal-scale Earth orientation variations, J. Geophys. Res., doi: 10.1029/2004JB003565, 110, B09405.10.1029/2004JB003565]Search in Google Scholar
[Hide R. and Dickey J. O. (1991). Earth's variable rotation, Science, 253, 629-637.10.1126/science.253.5020.62917772366]Search in Google Scholar
[Kantha L. H., Stewart J. S., and Desai S. D. (1998). Long-period lunar fortnightly and monthly ocean tides, J. Geophys. Res., 103, 12639-12647.10.1029/98JC00888]Search in Google Scholar
[Kouba J. (2002). Sub-daily Earth rotation parameters and the International GPS Service orbit/clock solution products, Stud. Geophys. Geod., 46, 9-25.10.1023/A:1019894614643]Search in Google Scholar
[Kouba J. (2003). Testing of the IERS2003 sub-daily Earth rotation parameter model, Stud. Geophys. Geod., 47, 725-739.10.1023/A:1026338601516]Search in Google Scholar
[Kouba J. and Vondrák J. (2005). Comparison of length of day with oceanic and atmospheric angular momentum series, J. Geod., doi: 10.1007/s00190-005-0467-9, 79(4-5), 256-268.10.1007/s00190-005-0467-9]Search in Google Scholar
[Luzum B. J., Ray J. R., Carter M. S., and Josties J. (2001), Recent improvements to IERS Bulletin A combination and prediction, GPS Solutions, 4(3), 34-40.10.1007/PL00012853]Search in Google Scholar
[Malkin Z. (2009). On comparison of the Earth orientation parameters obtained from different VLBI networks and observing programs, J. Geod., doi: 10.1007/s00190-008-0265-2, 83, 547-556.10.1007/s00190-008-0265-2]Search in Google Scholar
[McCarthy D. D. and Petit G., eds. (2004). IERS Conventions (2003), IERS Technical Note, 32, Verlag des Bundesamts für Kartographie und Geodäsie, Frankfurt am Main, ISBN 3-89888-884-3.]Search in Google Scholar
[Mireault Y., Kouba J., and Ray J. (1999), IGS Earth rotation parameters, GPS Solutions, 3(1), 59-72.10.1007/PL00012781]Search in Google Scholar
[Morabito D.D, Eubanks T. M., and Steppe J. A. (1988). Kalman filtering of Earth orientation changes, in The Earth's Rotation and Reference Frames for Geodesy and Geodynamics, Babcock A. K. and Wilkins G. A. (eds.), Kluwer Acad., Norwell, Mass., pp. 257-267.]Search in Google Scholar
[Ray J. R. (1996). Measurements of length of day using the Global Positioning System, J. Geophys. Res., 101(B9), 20141-20149.10.1029/96JB01889]Search in Google Scholar
[Ray J. R. (2009). An optimal, consistent approach for combination for UT1 and LOD, in Geodetic Reference Frames, H. Drewes (ed.), IAG Symposia series, vol. 134, Springer-Verlag, doi: 10.1007/978-3-642-00860-3_37, pp. 239-243.10.1007/978-3-642-00860-3_37]Search in Google Scholar
[Ray J. R., Carter W. E., and Robertson D. S. (1995). Assessment of the accuracy of daily UT1 determinations by very long baseline interferometry, J. Geophys. Res., 100(B5), 8193-8200.10.1029/95JB00151]Search in Google Scholar
[Ray J., Kouba J., and Altamimi Z. (2005). Is there utility in rigorous combinations of VLBI and GPS EOPs?, J. Geod., doi: 10.1007/s00190-005-0007-7, 79(9), 505-511.10.1007/s00190-005-0007-7]Search in Google Scholar
[Robertson D. S., Carter W. E., Campbell J., and Schuh H. (1985). Daily Earth rotation determinations from IRIS very long baseline interferometry, Nature, 316, 424-427.10.1038/316424a0]Search in Google Scholar
[Salstein D. A. and Rosen R. D. (1997). Global momentum and energy signals from reanalysis systems, in 7th Conf. on Climate Variations, American Meteorological Society, Boston, MA, pp. 344-348.]Search in Google Scholar
[Senior K., Kouba J., and Ray J. (2008a). A Kalman filter to combine VLBI UT1 and GPS LOD estimates, Geophysical Research Abstracts, 10, EGU2008-A-07532.]Search in Google Scholar
[Senior K., Kouba J., and Ray J. (2008b). A Kalman filter for improved multi-technique estimates of UT1 variations, Eos Trans. AGU, 89(53), Fall Meeting Suppl., Abstract G32A-07.]Search in Google Scholar
[Thaller D., Kruegel M., Rothacher M., Tesmer V., Schmid R., and Angermann D. (2007). Combined Earth orientation parameters based on homogeneous and continuous VLBI and GPS data, J. Geod., doi: 10.1007/s00190-006-0115-z, 81(6-8), 529-541.10.1007/s00190-006-0115-z]Search in Google Scholar
[Vondrák J. (1969). A contribution to the problem of smoothing observational data, Bull. Astron. Inst. Czech., 20, 349-355.]Search in Google Scholar
[Vondrák J. (1977). Problem of smoothing observational data II, Bull. Astron. Inst. Czech., 28, 84-89.]Search in Google Scholar
[Vondrák J. and Cepek A. (2000). Combined smoothing method and its use in combining Earth orientation parameters measured by space techniques, Astron. Astrophys. Suppl. Ser., 147, 347-359.10.1051/aas:2000306]Search in Google Scholar
[Vondrák J. and Ron C. (2005). Combining GPS and VLBI measurements of celestial motion of the Earth's spin axis and Universal time, Acta Geodynamica et Geomaterialia, 2(3), 87-94.]Search in Google Scholar
[Yoder C. F., Williams J. G., and Parke M. E. (1981). Tidal variations of Earth rotation, J. Geophys. Res., 86(B2), 881-89110.1029/JB086iB02p00881]Search in Google Scholar