Prediction of Earth orientation parameters by artificial neural networks

Research output: Contribution to journalArticleResearchpeer review

Authors

External Research Organisations

  • TU Wien (TUW)
  • Technical University of Munich (TUM)
  • Institute for Radio Astronomy (IRA)
View graph of relations

Details

Original languageEnglish
Pages (from-to)247-258
Number of pages12
JournalJournal of geodesy
Volume76
Issue number5
Publication statusPublished - May 2002
Externally publishedYes

Abstract

Earth orientation parameters (EOPs) [polar motion and length of day (LOD), or UTI-UTC] were predicted by artificial neural networks. EOP series from various sources, e.g. the C04 series from the International Earth Rotation Service and the re-analysis optical astrometry series based on the HIPPARCOS frame, served for training the neural network for both short-term and long-term predictions. At first, all effects which can be described by functional models, e.g. effects of the solid Earth tides and the ocean tides or seasonal atmospheric variations of the EOPs, were removed. Only the differences between the modeled and the observed EOPs, i.e. the quasi-periodic and irregular variations, were used for training and prediction. The Stuttgart neural network simulator, which is a very powerful software tool developed at the University of Stuttgart, was applied to construct and to validate different types of neural networks in order to find the optimal topology of the net, the most economical learning algorithm and the best procedure to feed the net with data patterns. The results of the prediction were analyzed and compared with those obtained by other methods. The accuracy of the prediction is equal to or even better than that by other prediction methods.

Keywords

    Earth rotation, Neural networks, Prediction

ASJC Scopus subject areas

Cite this

Prediction of Earth orientation parameters by artificial neural networks. / Schuh, H.; Ulrich, M.; Egger, D. et al.
In: Journal of geodesy, Vol. 76, No. 5, 05.2002, p. 247-258.

Research output: Contribution to journalArticleResearchpeer review

Schuh H, Ulrich M, Egger D, Müller J, Schwegmann W. Prediction of Earth orientation parameters by artificial neural networks. Journal of geodesy. 2002 May;76(5):247-258. doi: 10.1007/s00190-001-0242-5
Schuh, H. ; Ulrich, M. ; Egger, D. et al. / Prediction of Earth orientation parameters by artificial neural networks. In: Journal of geodesy. 2002 ; Vol. 76, No. 5. pp. 247-258.
Download
@article{bf6ace3a0ac34e1ab1966a3a0c822c34,
title = "Prediction of Earth orientation parameters by artificial neural networks",
abstract = "Earth orientation parameters (EOPs) [polar motion and length of day (LOD), or UTI-UTC] were predicted by artificial neural networks. EOP series from various sources, e.g. the C04 series from the International Earth Rotation Service and the re-analysis optical astrometry series based on the HIPPARCOS frame, served for training the neural network for both short-term and long-term predictions. At first, all effects which can be described by functional models, e.g. effects of the solid Earth tides and the ocean tides or seasonal atmospheric variations of the EOPs, were removed. Only the differences between the modeled and the observed EOPs, i.e. the quasi-periodic and irregular variations, were used for training and prediction. The Stuttgart neural network simulator, which is a very powerful software tool developed at the University of Stuttgart, was applied to construct and to validate different types of neural networks in order to find the optimal topology of the net, the most economical learning algorithm and the best procedure to feed the net with data patterns. The results of the prediction were analyzed and compared with those obtained by other methods. The accuracy of the prediction is equal to or even better than that by other prediction methods.",
keywords = "Earth rotation, Neural networks, Prediction",
author = "H. Schuh and M. Ulrich and D. Egger and J. M{\"u}ller and W. Schwegmann",
year = "2002",
month = may,
doi = "10.1007/s00190-001-0242-5",
language = "English",
volume = "76",
pages = "247--258",
journal = "Journal of geodesy",
issn = "0949-7714",
publisher = "Springer Verlag",
number = "5",

}

Download

TY - JOUR

T1 - Prediction of Earth orientation parameters by artificial neural networks

AU - Schuh, H.

AU - Ulrich, M.

AU - Egger, D.

AU - Müller, J.

AU - Schwegmann, W.

PY - 2002/5

Y1 - 2002/5

N2 - Earth orientation parameters (EOPs) [polar motion and length of day (LOD), or UTI-UTC] were predicted by artificial neural networks. EOP series from various sources, e.g. the C04 series from the International Earth Rotation Service and the re-analysis optical astrometry series based on the HIPPARCOS frame, served for training the neural network for both short-term and long-term predictions. At first, all effects which can be described by functional models, e.g. effects of the solid Earth tides and the ocean tides or seasonal atmospheric variations of the EOPs, were removed. Only the differences between the modeled and the observed EOPs, i.e. the quasi-periodic and irregular variations, were used for training and prediction. The Stuttgart neural network simulator, which is a very powerful software tool developed at the University of Stuttgart, was applied to construct and to validate different types of neural networks in order to find the optimal topology of the net, the most economical learning algorithm and the best procedure to feed the net with data patterns. The results of the prediction were analyzed and compared with those obtained by other methods. The accuracy of the prediction is equal to or even better than that by other prediction methods.

AB - Earth orientation parameters (EOPs) [polar motion and length of day (LOD), or UTI-UTC] were predicted by artificial neural networks. EOP series from various sources, e.g. the C04 series from the International Earth Rotation Service and the re-analysis optical astrometry series based on the HIPPARCOS frame, served for training the neural network for both short-term and long-term predictions. At first, all effects which can be described by functional models, e.g. effects of the solid Earth tides and the ocean tides or seasonal atmospheric variations of the EOPs, were removed. Only the differences between the modeled and the observed EOPs, i.e. the quasi-periodic and irregular variations, were used for training and prediction. The Stuttgart neural network simulator, which is a very powerful software tool developed at the University of Stuttgart, was applied to construct and to validate different types of neural networks in order to find the optimal topology of the net, the most economical learning algorithm and the best procedure to feed the net with data patterns. The results of the prediction were analyzed and compared with those obtained by other methods. The accuracy of the prediction is equal to or even better than that by other prediction methods.

KW - Earth rotation

KW - Neural networks

KW - Prediction

UR - http://www.scopus.com/inward/record.url?scp=0036081815&partnerID=8YFLogxK

U2 - 10.1007/s00190-001-0242-5

DO - 10.1007/s00190-001-0242-5

M3 - Article

AN - SCOPUS:0036081815

VL - 76

SP - 247

EP - 258

JO - Journal of geodesy

JF - Journal of geodesy

SN - 0949-7714

IS - 5

ER -

By the same author(s)