20:
404:
The GPS reference epoch was moved from 2000.0 to 2001.0 in G1150 due to an
Alaskan earthquake in November 2002. Still in 2022 ITRF2020 was released, yet GPS was only using G2139 in its antennas, which was aligned to ITRF2014 (IGb14) (though at epoch 2016.0, not reference epoch 2010.0). On 7 January
66:) is a realization of the ITRS. Its origin is at the center of mass of the whole earth including the oceans and atmosphere. New ITRF solutions are produced every few years, using the latest mathematical and surveying techniques to attempt to realize the ITRS as precisely as possible. Due to
251:
From this version onwards, the motion of the tectonic plate is represented in the solution for each station as a velocity vector. Previous ITRFs only continued the initial positions, using a motion model to fill in the velocity.
582:
Altamimi, Z.; Collilieux, X.; Legrand, J.; Garayt, B.; Boucher, C. (2007). "ITRF2005: A new release of the
International Terrestrial Reference Frame based on time series of station positions and Earth Orientation Parameters".
408:
On the other hand GLONASS is using PZ-90.11, which is close to ITRF2008 at epoch 2011.0 and is using 2010.0 epoch (that means when you use reference transformation to PZ-90.11 you will get
January 2010 date).
433:
78:
85:). Practical navigation systems are in general referenced to a specific ITRF solution, or to their own coordinate systems which are then referenced to an ITRF solution. For example, the
280:(phase) per-axis. This sort of seasonal variation has an amplitude of around 1 cm and is attributed to non-tidal loading effects (e.g. the shifting weight of water).
418:
783:
370:, ITRF2020 since January 2024 (but used many versions of WGS 84 before), a little modified with International GNSS Service (IGS) implementation, IGS20.
516:
772:
324:
smooth parametric fits are to model post-seismic deformation as opposed to the traditional approach using piecewise linear functions.
405:
2024 move to IGS20 happened, so WGS 84 is now aligned with ITRF2020, including PSD (post-seismic deformation), also called G2296.
74:(frame realisation G1150) and the latest ITRF2000 is only a few centimeters and RMS difference of one centimeter per component.
70:, any given ITRF will differ very slightly from any other realization of the ITRF. The difference between the latest as of 2006
357:
94:
423:
48:
438:
19:
270:
Constructed with input data under the form of time series of station positions and Earth
Orientation Parameters.
246:
799:
376:
Coordinate System, China
Terrestrial Reference Frame (CTRF) 2000 = ITRF97 at epoch 2000.0; own implementation.
671:"ITRF2014: A new release of the International Terrestrial Reference Frame modeling nonlinear station motions"
39:
suitable for use with measurements on or near the Earth's surface. This is done in much the same way that a
543:"ITRF2000: A new release of the International Terrestrial Reference Frame for earth science applications"
735:
443:
98:
71:
682:
641:
592:
554:
40:
498:
768:
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36:
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This version introduces extra parameters to describe the year-periodic motion of the stations:
385:
is nominally its own system, but is quite close to ITRF and uses many of the same techniques.
690:
649:
608:
600:
562:
109:
The ITRF realizations developed from the ITRS since 1991 include the following versions:
686:
645:
596:
558:
16:
World spatial reference system co-rotating with the Earth in its diurnal motion in space
428:
793:
464:
763:
669:
Altamimi, Zuheir; Rebischung, Paul; Métivier, Laurent; Collilieux, Xavier (2016).
630:"ITRF2008: an improved solution of the international terrestrial reference frame"
360:
Terrestrial
Reference Frame (GTRF), ITRF2005; own implementation using IGS sites.
245:
First solution that combines unconstrained space geodesy solutions free from any
318:
Generated with an enhanced modeling of nonlinear station motions. Specifically:
654:
629:
613:
734:
US Department of
Commerce, National Oceanic and Atmospheric Administration.
710:
628:
Altamimi, Zuheir; Collilieux, Xavier; Métivier, Laurent (3 February 2011).
769:
Convertor between ITRF realisations with changing the epoch and tectonics
695:
670:
604:
567:
542:
321:
a semiannual component is added to the traditional annual periodic model;
379:
778:
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United States: WGS 84 (see above); domestic use is mainly based on
382:
18:
764:
Forward and backward transformations using 14 parameters
Helmert
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82:
736:"Transitioning from IGS14 to IGb14 - National Geodetic Survey"
363:
301:
Includes tropospheric modeling and improved solution methods.
434:
International
Celestial Reference System and its realizations
541:
Altamimi, Zuheir; Sillard, Patrick; Boucher, Claude (2002).
517:"International Terrestrial Reference Frame 2014 (ITRF2014)"
52:
79:
International Earth
Rotation and Reference Systems Service
43:
might be described as a set of procedures for creating a
97:
navigation system; currently defined as ITRF2005 by the
77:The ITRS and ITRF solutions are maintained by the
419:Earth-centered, Earth-fixed coordinate system
8:
675:Journal of Geophysical Research: Solid Earth
585:Journal of Geophysical Research: Solid Earth
547:Journal of Geophysical Research: Solid Earth
29:International Terrestrial Reference System
786:(PDF; chapter 4 of IERS Conventions 2010)
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60:International Terrestrial Reference Frame
784:Terrestrial reference systems and frames
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47:of that standard. The ITRS defines a
7:
35:) describes procedures for creating
87:Galileo Terrestrial Reference Frame
463:Clynch, James R. (February 2006).
14:
521:Quality Positioning Services B.V
51:system of coordinates using the
164:First realization of the ITRS
1:
424:Earth orientation parameters
439:Terrestrial reference frame
400:China: CTRF 2000 per above.
247:tectonic plate motion model
816:
499:"Reference Frames in GNSS"
472:GPS Geodesy and Geophysics
655:10.1007/s00190-011-0444-4
553:(B10): ETG 2-1–ETG 2-19.
505:. European Space Agency.
55:system of measurement.
23:ITRF reference stations
24:
444:World Geodetic System
99:European Space Agency
22:
696:10.1002/2016JB013098
605:10.1029/2007JB004949
568:10.1029/2001JB000561
687:2016JGRB..121.6109A
646:2011JGeod..85..457A
597:2007JGRB..112.9401A
559:2002JGRB..107.2214A
465:"Earth coordinates"
634:Journal of Geodesy
614:10338.dmlcz/141752
389:National systems:
93:) is used for the
68:experimental error
25:
711:"ITRF | Itrf2020"
474:. James R. Clynch
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41:physical standard
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740:geodesy.noaa.gov
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779:What is ITRF?
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743:. Retrieved
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715:itrf.ign.fr
45:realization
720:2022-06-18
450:References
366:just uses
339:9989 9990
314:7912 9000
266:7910 8998
241:7909 8997
225:7908 8996
209:7907 8995
193:7906 8994
177:7905 8993
160:7904 8992
144:7903 8991
49:geocentric
773:tectonics
526:3 October
503:Navipedia
331:ITRF2020
306:ITRF2014
286:ITRF2008
258:ITRF2005
233:ITRF2000
794:Category
478:24 March
413:See also
397:instead.
383:PZ-90.11
105:Versions
745:28 June
683:Bibcode
642:Bibcode
593:Bibcode
555:Bibcode
380:GLONASS
358:Galileo
334:2015.0
309:2010.0
289:2005.0
261:2000.0
236:1997.0
220:1997.0
217:ITRF97
204:1997.0
201:ITRF96
188:1993.0
185:ITRF94
172:1988.0
169:ITRF93
155:1988.0
152:ITRF92
139:1988.0
136:ITRF91
95:Galileo
775:for it
395:NAD 83
374:BeiDou
368:WGS 84
131:Notes
120:epoch
72:WGS 84
468:(PDF)
349:Users
337:9988
312:7789
297:8999
294:7911
292:5332
264:4896
239:4919
223:4918
207:4917
191:4916
175:4915
158:4914
142:4913
128:code
118:Ref.
115:Name
747:2022
528:2019
480:2016
125:EPSG
91:GTRF
83:IERS
64:ITRF
33:ITRS
27:The
691:doi
679:121
650:doi
609:hdl
601:doi
589:112
563:doi
551:107
364:GPS
58:An
796::
771:,
738:.
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689:.
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488:^
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53:SI
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278:φ
274:A
89:(
81:(
62:(
31:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
