31:
415:
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
77:) 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
262:
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.
593:
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".
419:
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).
444:
89:
96:). 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
291:(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).
429:
794:
381:, ITRF2020 since January 2024 (but used many versions of WGS 84 before), a little modified with International GNSS Service (IGS) implementation, IGS20.
527:
783:
335:
smooth parametric fits are to model post-seismic deformation as opposed to the traditional approach using piecewise linear functions.
416:
2024 move to IGS20 happened, so WGS 84 is now aligned with ITRF2020, including PSD (post-seismic deformation), also called G2296.
85:(frame realisation G1150) and the latest ITRF2000 is only a few centimeters and RMS difference of one centimeter per component.
81:, any given ITRF will differ very slightly from any other realization of the ITRF. The difference between the latest as of 2006
368:
105:
434:
59:
449:
30:
281:
Constructed with input data under the form of time series of station positions and Earth
Orientation Parameters.
257:
810:
387:
Coordinate System, China
Terrestrial Reference Frame (CTRF) 2000 = ITRF97 at epoch 2000.0; own implementation.
682:"ITRF2014: A new release of the International Terrestrial Reference Frame modeling nonlinear station motions"
50:
suitable for use with measurements on or near the Earth's surface. This is done in much the same way that a
554:"ITRF2000: A new release of the International Terrestrial Reference Frame for earth science applications"
17:
746:
454:
109:
82:
693:
652:
603:
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51:
509:
779:
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47:
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This version introduces extra parameters to describe the year-periodic motion of the stations:
396:
is nominally its own system, but is quite close to ITRF and uses many of the same techniques.
701:
660:
619:
611:
573:
120:
The ITRF realizations developed from the ITRS since 1991 include the following versions:
697:
656:
607:
569:
27:
World spatial reference system co-rotating with the Earth in its diurnal motion in space
439:
804:
475:
774:
680:
Altamimi, Zuheir; Rebischung, Paul; Métivier, Laurent; Collilieux, Xavier (2016).
641:"ITRF2008: an improved solution of the international terrestrial reference frame"
371:
Terrestrial
Reference Frame (GTRF), ITRF2005; own implementation using IGS sites.
256:
First solution that combines unconstrained space geodesy solutions free from any
329:
Generated with an enhanced modeling of nonlinear station motions. Specifically:
665:
640:
624:
745:
US Department of
Commerce, National Oceanic and Atmospheric Administration.
721:
639:
Altamimi, Zuheir; Collilieux, Xavier; Métivier, Laurent (3 February 2011).
780:
Convertor between ITRF realisations with changing the epoch and tectonics
706:
681:
615:
578:
553:
332:
a semiannual component is added to the traditional annual periodic model;
390:
789:
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United States: WGS 84 (see above); domestic use is mainly based on
393:
29:
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Forward and backward transformations using 14 parameters
Helmert
135:
93:
747:"Transitioning from IGS14 to IGb14 - National Geodetic Survey"
374:
312:
Includes tropospheric modeling and improved solution methods.
445:
International
Celestial Reference System and its realizations
552:
Altamimi, Zuheir; Sillard, Patrick; Boucher, Claude (2002).
528:"International Terrestrial Reference Frame 2014 (ITRF2014)"
63:
90:
International Earth
Rotation and Reference Systems Service
54:
might be described as a set of procedures for creating a
108:
navigation system; currently defined as ITRF2005 by the
88:The ITRS and ITRF solutions are maintained by the
430:Earth-centered, Earth-fixed coordinate system
8:
686:Journal of Geophysical Research: Solid Earth
596:Journal of Geophysical Research: Solid Earth
558:Journal of Geophysical Research: Solid Earth
40:International Terrestrial Reference System
797:(PDF; chapter 4 of IERS Conventions 2010)
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71:International Terrestrial Reference Frame
18:International Terrestrial Reference Frame
795:Terrestrial reference systems and frames
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58:of that standard. The ITRS defines a
7:
46:) describes procedures for creating
98:Galileo Terrestrial Reference Frame
474:Clynch, James R. (February 2006).
25:
532:Quality Positioning Services B.V
62:system of coordinates using the
175:First realization of the ITRS
1:
435:Earth orientation parameters
450:Terrestrial reference frame
411:China: CTRF 2000 per above.
258:tectonic plate motion model
827:
510:"Reference Frames in GNSS"
483:GPS Geodesy and Geophysics
666:10.1007/s00190-011-0444-4
564:(B10): ETG 2-1–ETG 2-19.
516:. European Space Agency.
66:system of measurement.
34:ITRF reference stations
35:
455:World Geodetic System
110:European Space Agency
33:
707:10.1002/2016JB013098
616:10.1029/2007JB004949
579:10.1029/2001JB000561
698:2016JGRB..121.6109A
657:2011JGeod..85..457A
608:2007JGRB..112.9401A
570:2002JGRB..107.2214A
476:"Earth coordinates"
645:Journal of Geodesy
625:10338.dmlcz/141752
400:National systems:
104:) is used for the
79:experimental error
36:
722:"ITRF | Itrf2020"
485:. James R. Clynch
357:
356:
52:physical standard
16:(Redirected from
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751:geodesy.noaa.gov
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726:itrf.ign.fr
56:realization
731:2022-06-18
461:References
377:just uses
350:9989 9990
325:7912 9000
277:7910 8998
252:7909 8997
236:7908 8996
220:7907 8995
204:7906 8994
188:7905 8993
171:7904 8992
155:7903 8991
60:geocentric
784:tectonics
537:3 October
514:Navipedia
342:ITRF2020
317:ITRF2014
297:ITRF2008
269:ITRF2005
244:ITRF2000
805:Category
489:24 March
424:See also
408:instead.
394:PZ-90.11
116:Versions
756:28 June
694:Bibcode
653:Bibcode
604:Bibcode
566:Bibcode
391:GLONASS
369:Galileo
345:2015.0
320:2010.0
300:2005.0
272:2000.0
247:1997.0
231:1997.0
228:ITRF97
215:1997.0
212:ITRF96
199:1993.0
196:ITRF94
183:1988.0
180:ITRF93
166:1988.0
163:ITRF92
150:1988.0
147:ITRF91
106:Galileo
786:for it
406:NAD 83
385:BeiDou
379:WGS 84
142:Notes
131:epoch
83:WGS 84
479:(PDF)
360:Users
348:9988
323:7789
308:8999
305:7911
303:5332
275:4896
250:4919
234:4918
218:4917
202:4916
186:4915
169:4914
153:4913
139:code
129:Ref.
126:Name
758:2022
539:2019
491:2016
136:EPSG
102:GTRF
94:IERS
75:ITRF
44:ITRS
38:The
702:doi
690:121
661:doi
620:hdl
612:doi
600:112
574:doi
562:107
375:GPS
69:An
807::
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64:SI
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289:φ
285:A
100:(
92:(
73:(
42:(
20:)
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