ITRF2000: A new release of the International Terrestrial Reference frame for earth science applications

被引:624
|
作者
Altamimi, Z
Sillard, P
Boucher, C
机构
[1] Inst Geog Natl, ENSG, LAREG, F-77455 Paris, France
[2] Minist Rech, Dept Espace & Aeron, F-75231 Paris, France
关键词
reference systems and frames; terrestrial reference systems and frames; tectonic plate motion; ITRF;
D O I
10.1029/2001JB000561
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
[1] For the first time in the history of the International Terrestrial Reference Frame, the ITRF2000 combines unconstrained space geodesy solutions that are free from any tectonic plate motion model. Minimum constraints are applied to these solutions solely in order to define the underlying terrestrial reference frame (TRF). The ITRF2000 origin is defined by the Earth center of mass sensed by satellite laser ranging (SLR) and its scale by SLR and very long baseline interferometry. Its orientation is aligned to the ITRF97 at epoch 1997.0, and its orientation time evolution follows, conventionally, that of the no-net-rotation NNR-NUVEL-1A model. The ITRF2000 orientation and its rate are implemented using a consistent geodetic method, anchored over a selection of ITRF sites of high geodetic quality, ensuring a datum definition at the 1 mm level. This new frame is the most extensive and accurate one ever developed, containing about 800 stations located at about 500 sites, with better distribution over the globe compared to past ITRF versions but still with more site concentration in western Europe and North America. About 50% of station positions are determined to better than 1 cm, and about 100 sites have their velocity estimated to at (or better than) 1 mm/yr level. The ITRF2000 velocity field was used to estimate relative rotation poles for six major tectonic plates that are independent of the TRF orientation rate. A comparison to relative rotation poles of the NUVEL-1A plate motion model shows vector differences ranging between 0.03degrees and 0.08degrees/m.y. (equivalent to approximately 1-7 mm/yr over the Earth's surface). ITRF2000 angular velocities for four plates, relative to the Pacific plate, appear to be faster than those predicted by the NUVEL-1A model. The two most populated plates in terms of space geodetic sites, North America and Eurasia, exhibit a relative Euler rotation pole of about 0.056 (+/-0.005)degrees/m.y. faster than the pole predicted by NUVEL-1A and located about (10degreesN, 7degreesE) more to the northwest, compared to that model.
引用
收藏
页数:19
相关论文
共 50 条
  • [1] Comparison of a GPS-defined global reference frame with ITRF2000
    Heflin M.
    Argus D.
    Jefferson D.
    Webb F.
    Zumberge J.
    [J]. GPS Solutions, 2002, 6 (1) : 72 - 75
  • [2] The International Terrestrial Reference Frame (ITRF2005)
    Altamimi, Z.
    [J]. GEODETIC REFERENCE FRAMES, 2009, 134 : 81 - 82
  • [3] ITRF2014: A new release of the International Terrestrial Reference Frame modeling nonlinear station motions
    Altamimi, Zuheir
    Rebischung, Paul
    Metivier, Laurent
    Collilieux, Xavier
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2016, 121 (08) : 6109 - 6131
  • [4] ITRF2005: A new release of the International Terrestrial Reference Frame based on time series of station positions and earth orientation parameters
    Altamimi, Z.
    Collilieux, X.
    Legrand, J.
    Garayt, B.
    Boucher, C.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2007, 112 (B9)
  • [5] The International Terrestrial Reference Frame: lessons from ITRF2014
    Altamimi, Zuheir
    Rebischung, Paul
    Metivier, Laurent
    Collilieux, Xavier
    [J]. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI, 2018, 29 : 23 - 28
  • [6] ITRF2008: an improved solution of the international terrestrial reference frame
    Zuheir Altamimi
    Xavier Collilieux
    Laurent Métivier
    [J]. Journal of Geodesy, 2011, 85 : 457 - 473
  • [7] UPDATING THAI REFERENCE FRAME TO ITRF2005 USING GPS: DIVERSION BETWEEN ITRF2000 AND 2005 IN SOUTHEAST ASIA
    Satirapod, C.
    Simons, Wim J. F.
    Panumastrakul, E.
    Trisirisatayawong, I.
    [J]. SURVEY REVIEW, 2011, 43 (319) : 45 - 53
  • [8] The International Terrestrial Reference Frame: lessons from ITRF2014
    Zuheir Altamimi
    Paul Rebischung
    Laurent Métivier
    Xavier Collilieux
    [J]. Rendiconti Lincei. Scienze Fisiche e Naturali, 2018, 29 : 23 - 28
  • [9] ITRF2008: an improved solution of the international terrestrial reference frame
    Altamimi, Zuheir
    Collilieux, Xavier
    Metivier, Laurent
    [J]. JOURNAL OF GEODESY, 2011, 85 (08) : 457 - 473
  • [10] Analysis of Regional GPS Campaigns and their Alignment to the International Terrestrial Reference Frame (ITRF)
    Hu, G.
    [J]. JOURNAL OF SPATIAL SCIENCE, 2009, 54 (01) : 15 - 22