Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Brian J. Luzum"'
Autor:
Axel Nothnagel, Brian J. Luzum
Publikováno v:
Journal of Geodesy. 84:399-402
The quality of predictions of Earth orientation parameters (EOPs) in general, and of Universal Time (UT1) in particular, depends strongly on the time delay between the last observation available and the first prediction. Since 30 September 2007 (MJD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1391e7b9488b701288becf076de728f
https://doi.org/10.1007/s00190-010-0372-8
https://doi.org/10.1007/s00190-010-0372-8
Publikováno v:
Journal of Geodynamics. 39:209-221
Predicted values of atmospheric angular momentum (AAM) from the U.S. National Centers for Environmental Prediction (NCEP) were introduced into the International Earth Rotation and Reference Systems Service (IERS) Bulletin A (rapid service/prediction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19864fe94304be5375cf06de5cb74996
https://doi.org/10.1016/j.jog.2004.10.004
https://doi.org/10.1016/j.jog.2004.10.004
Autor:
Dennis D. McCarthy, Brian J. Luzum
Publikováno v:
Celestial Mechanics and Dynamical Astronomy. 85:37-49
Precise astrometric observations show that significant systematic differences of the order of 10 milliarcseconds (mas) exist between the observed position of the celestial pole in the International Celestial Reference Frame (ICRF) and the position de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de36c6145d62b01d5825c5d032f17eb2
https://doi.org/10.1023/a:1021762727016
https://doi.org/10.1023/a:1021762727016
Publikováno v:
GPS Solutions. 4:34-40
Driven by a need for increased accuracy in real-time Earth orientation parameters (EOPs), the Bulletin A (Rapid Servce and Predictions) of the International Earth Rotation Service (IERS) has recently made several major changes to its combination and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::558e9e211a93b0f92dfc58ac94ea644e
https://doi.org/10.1007/pl00012853
https://doi.org/10.1007/pl00012853
Autor:
Toshio Fukushima, G. A. Krasinsky, Michael Soffel, Patrick T. Wallace, William M. Folkner, E. V. Pitjeva, Agnes Fienga, Gérard Petit, James L. Hilton, Brian J. Luzum, Nicole Capitaine, Catherine Y. Hohenkerk
Publikováno v:
Proceedings of the International Astronomical Union. 4:60-62
At the 2006 General Assembly of the International Astronomical Union (IAU), a proposal was adopted to form the Working Group (WG) for Numerical Standards of Fundamental Astronomy (NSFA). The goal of the WG is to update the “IAU Current Best Estimat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36fd676bd156275e5e2744b28298454
https://doi.org/10.1017/s1743921308025301
https://doi.org/10.1017/s1743921308025301
Autor:
Dennis D. McCarthy, Brian J. Luzum
Publikováno v:
Geophysical Journal International. 125:623-629
SUMMARY Historical sources of polar motion are analysed together with modern data in order to compile a set of coordinates of the mean pole in a reference system consistent with that of the International Earth Rotation Service. the trend and quasi-pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20c7b0acb96f3df6e3ec359150b59c73
https://doi.org/10.1111/j.1365-246x.1996.tb00024.x
https://doi.org/10.1111/j.1365-246x.1996.tb00024.x
Autor:
Gérard Petit, Brian J. Luzum
Publikováno v:
Reference Frames for Applications in Geosciences ISBN: 9783642329975
This paper presents the IERS Conventions (2010) the new reference edition replacing the Conventions (2003) and describes their most significant features: new realizations of the celestial and terrestrial reference systems; a new conventional geopoten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa67287c312871a8fafb1ef30e3bb87
https://doi.org/10.1007/978-3-642-32998-2_10
https://doi.org/10.1007/978-3-642-32998-2_10
Autor:
Michael Soffel, E. V. Pitjeva, Toshio Fukushima, Gérard Petit, Agnes Fienga, James L. Hilton, William M. Folkner, N. Capitaine, Brian J. Luzum, G. A. Krasinsky, Patrick T. Wallace, Catherine Y. Hohenkerk
Publikováno v:
Celestial Mechanics and Dynamical Astronomy
Celestial Mechanics and Dynamical Astronomy, 2011, 110 (4), pp.293-304. ⟨10.1007/s10569-011-9352-4⟩
Celestial Mechanics and Dynamical Astronomy, 2011, 110 (4), pp.293-304. ⟨10.1007/s10569-011-9352-4⟩
In the 2006–2009 triennium, the International Astronomical Union (IAU) Working Group on Numerical Standards for Fundamental Astronomy determined a list of Current Best Estimates (CBEs). The IAU 2009 Resolution B2 adopted these CBEs as the IAU (2009
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5f00535679b8854054450d7a0bd14f1
https://hal.science/hal-00732960
https://hal.science/hal-00732960
Autor:
Brian J. Luzum, Dennis D. McCarthy
Publikováno v:
Bulletin Géodésique. 65:18-21
The method for predicting x, y, and UT1-UTC as conceived and implemented by the Subbureau for Rapid Service and Prediction of the International Earth Rotation Service (IERS) is shown. For polar motion, the method is an extrapolation of an annual elli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a97218394acdb4b13e3d91d1af1f5eb
https://doi.org/10.1007/bf00806338
https://doi.org/10.1007/bf00806338
Autor:
Brian J. Luzum, Dennis D. McCarthy
Publikováno v:
Bulletin Géodésique. 65:22-27
The procedure for computing Earth orientation parameters (EOPs) implemented by the Subbureau for Rapid Service and Prediction of the International Earth Rotational Service (IERS) is described. This scheme involves the use of weighted cubic splines an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b03869dfbf245782c7d83a6152ef8cd
https://doi.org/10.1007/bf00806339
https://doi.org/10.1007/bf00806339