Prediction of Earth Rotation Parameters with the Use of Rapid Products from IGS, Code and GFZ Data Centres Using Arima and Kriging – A Comparison
Online veröffentlicht: 05. Jan. 2023
Seitenbereich: 274 - 289
Eingereicht: 18. Juli 2022
Akzeptiert: 06. Okt. 2022
DOI: https://doi.org/10.2478/arsa-2022-0024
Schlüsselwörter
© 2022 Maciej Michalczak et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
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Passing-Bablok regression, final IERS vs rapid CODE, IGS and GFZ ERP products
| ERP | Slope (a / CI) | Intercept (b / CI) [“ / s] | Decision | |
|---|---|---|---|---|
| IERS-CODE | PMx | 1.0000432 (1.00002075; 1.00006572) (R) |
0.0000170 (0.00001399; 0.00001988) (R) |
Reject |
| PMy | 1.00000000 (0.99997632; 1.00001322) (A) |
0.00000200 (-0.00000264; 0.00001059) (A) |
||
| LOD | 1.00100267 (1.00045893; 1.00155259) (R) |
0.00000759 (0.00000738; 0.00000778) (R) |
Reject | |
| IERS-IGS | PMx | 0.99999126 (0.99997446; 1.00000467) (A) |
0.00000545 (0.00000385; 0.00000720) (R) |
Reject (partially satisfied) |
| PMy | 0.99996812 (0.99995422; 0.99998202) (R) |
0.00001770 (0.00001268; 0.00002273) (R) |
Reject | |
| LOD | 1.00029612 (1.00000000; 1.00063857) (A) |
-0.00000018 (-0.00000026; -0.00000010) (R) |
Reject (partially satisfied) |
|
| IERS-GFZ | PMx | 1.00006766 (1.00004284; 1.00009256) (R) |
-0.00000174 (-0.00000476; 0.00000115) (A) |
Reject (partially satisfied) |
| PMy | 1.000052582 (1.00002540; 1.00008007) (R) |
0.00000175 (-0.00000836; 0.00001128) (A) |
Reject (partially satisfied) |
|
| LOD | 0.99948267 (0.99882881; 1.00013364) (A) |
0.00001554 (0.00001524; 0.00001582) (R) |
Reject (partially satisfied) |
Matched-pair t – test between final IERS and rapid CODE, IGS and GFZ ERP products
| ERP | Mean difference [“ / s] | CI lower limit [“ / s] | CI upper limit [“ / s] | Decision | |
|---|---|---|---|---|---|
| IERS-CODE | PMx | -0,00002657 | -0,00002828 | -0,00002486 | Reject |
| PMy | -0,00000364 | -0,00000493 | -0,00000234 | Reject | |
| LOD | -0.00000790 | -0.00000829 | -0.00000751 | Reject | |
| IERS-IGS | PMx | -0,00001092 | -0,00001240 | -0,00000945 | Reject |
| PMy | -0,00000896 | -0,00000996 | -0,00000796 | Reject | |
| LOD | 0.00000006 | -0.00000021 | 0.00000034 | ||
| IERS-GFZ | PMx | -0,00000536 | -0,00000719 | -0,00000353 | Reject |
| PMy | -0,00002593 | -0,00002780 | -0,00002406 | Reject | |
| LOD | -0.00001515 | -0.00001561 | -0.00001468 | Reject |
Deming regression, final IERS vs rapid CODE, IGS and GFZ ERP products
| ERP | Slope | Intercept [“ / s] | Decision | |
|---|---|---|---|---|
| IERS-CODE | PMx | 1.00003832 t = 3.04479892; p = 0.00235965 (R) |
0.00002657 t = 30.52319805; p = 0.00000000 (R) |
Reject |
| PMy | 0.99999094 t = -0.89663540; p = 0.37002469 (A) |
0.00000364 t = 5.50072407; p = 0.00000004 (R) |
Reject (partially satisfied) |
|
| LOD | 1.00089118 t = 3.15274029; p = 0.00164218 (R) |
0.00000790 t = 39.80528652; p = 0.00000000 (R) |
Reject | |
| IERS-IGS | PMx | 0.99998689 t = -1.17060095; p = 0.24190291 (A) |
0.00001092 t = 14.52462344; p = 0.00000000 (R) |
Reject (partially satisfied) |
| PMy | 0.99996457 t = -4.60782629; p = 0.00000433 (R) |
0.00000896 t = 17.59538975; p = 0.00000000 (R) |
Reject | |
| LOD | 1.00020499 t = 1.16628098; p = 0.24364414 (A) |
-0.00000006 t = -0.46240588; p = 0.64384211 (A) |
||
| IERS-GFZ | PMx | 1.00008012 t = 5.82033049; p = 0.00000001 (R) |
0.00000536 t = 5.74191721; p = 0.00000001 (R) |
Reject |
| PMy | 1.00006274 t = 4.07633940; p =0.00004760 (R) |
0.00002593 t = 27.24852927; p = 0.00000000 (R) |
Reject | |
| LOD | 0.99916958 t = -2.62639779; p = 0.00869725 (R) |
0.00001515 t = 63.59095306; p = 0.00000000 (R) |
Reject |