Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data
Time series of Earth rotation parameters were estimated from range data measured by the satellite laser ranging technique to the Laser Geodynamics Satellites (LAGEOS)-1/2 through 2005 to 2010 using the dynamic method. Compared with Earth orientation parameter (EOP) C04, released by the International...
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KeAi Communications Co., Ltd.
2015
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Online Access: | https://doi.org/10.1016/j.geog.2014.12.002 https://doaj.org/article/24ce828b94c742f1b31b30ffd509dea2 |
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ftdoajarticles:oai:doaj.org/article:24ce828b94c742f1b31b30ffd509dea2 2023-05-15T17:39:59+02:00 Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data Yi Shen Jinyun Guo Chunmei Zhao Xuemin Yu Jiulong Li 2015-01-01T00:00:00Z https://doi.org/10.1016/j.geog.2014.12.002 https://doaj.org/article/24ce828b94c742f1b31b30ffd509dea2 EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S167498471500004X https://doaj.org/toc/1674-9847 1674-9847 doi:10.1016/j.geog.2014.12.002 https://doaj.org/article/24ce828b94c742f1b31b30ffd509dea2 Geodesy and Geodynamics, Vol 6, Iss 1, Pp 55-60 (2015) Geodesy Satellite laser range (SLR) Earth rotation parameter (ERP) Laser Geodynamics Satellites (LAGEOS) Earth orientation parameter (EOP) Polar motion (PM) Length of day (LOD) Wavelet transform QB275-343 Geophysics. Cosmic physics QC801-809 article 2015 ftdoajarticles https://doi.org/10.1016/j.geog.2014.12.002 2022-12-31T04:16:08Z Time series of Earth rotation parameters were estimated from range data measured by the satellite laser ranging technique to the Laser Geodynamics Satellites (LAGEOS)-1/2 through 2005 to 2010 using the dynamic method. Compared with Earth orientation parameter (EOP) C04, released by the International Earth Rotation and Reference Systems Service, the root mean square errors for the measured X and Y of polar motion (PM) and length of day (LOD) were 0.24 and 0.25 milliarcseconds (mas), and 0.068 milliseconds (ms), respectively. Compared with ILRSA EOP, the X and Y of PM and LOD were 0.27 and 0.30 mas, and 0.054 ms, respectively. The time series were analyzed using the wavelet transformation and least squares methods. Wavelet analysis showed obvious seasonal and interannual variations of LOD, and both annual and Chandler variations of PM; however, the annual variation could not be distinguished from the Chandler variation because the two frequencies were very close. The trends and periodic variations of LOD and PM were obtained in the least squares sense, and PM showed semi-annual, annual, and Chandler periods. Semi-annual, annual, and quasi-biennial cycles for LOD were also detected. The trend rates of PM in the X and Y directions were 3.17 and −1.60 mas per year, respectively, and the North Pole moved to 26.8°E relative to the crust during 2005–2010. The trend rate of the LOD change was 0.028 ms per year. Article in Journal/Newspaper North Pole Directory of Open Access Journals: DOAJ Articles Chandler ENVELOPE(-59.682,-59.682,-64.490,-64.490) North Pole Geodesy and Geodynamics 6 1 55 60 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geodesy Satellite laser range (SLR) Earth rotation parameter (ERP) Laser Geodynamics Satellites (LAGEOS) Earth orientation parameter (EOP) Polar motion (PM) Length of day (LOD) Wavelet transform QB275-343 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geodesy Satellite laser range (SLR) Earth rotation parameter (ERP) Laser Geodynamics Satellites (LAGEOS) Earth orientation parameter (EOP) Polar motion (PM) Length of day (LOD) Wavelet transform QB275-343 Geophysics. Cosmic physics QC801-809 Yi Shen Jinyun Guo Chunmei Zhao Xuemin Yu Jiulong Li Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
topic_facet |
Geodesy Satellite laser range (SLR) Earth rotation parameter (ERP) Laser Geodynamics Satellites (LAGEOS) Earth orientation parameter (EOP) Polar motion (PM) Length of day (LOD) Wavelet transform QB275-343 Geophysics. Cosmic physics QC801-809 |
description |
Time series of Earth rotation parameters were estimated from range data measured by the satellite laser ranging technique to the Laser Geodynamics Satellites (LAGEOS)-1/2 through 2005 to 2010 using the dynamic method. Compared with Earth orientation parameter (EOP) C04, released by the International Earth Rotation and Reference Systems Service, the root mean square errors for the measured X and Y of polar motion (PM) and length of day (LOD) were 0.24 and 0.25 milliarcseconds (mas), and 0.068 milliseconds (ms), respectively. Compared with ILRSA EOP, the X and Y of PM and LOD were 0.27 and 0.30 mas, and 0.054 ms, respectively. The time series were analyzed using the wavelet transformation and least squares methods. Wavelet analysis showed obvious seasonal and interannual variations of LOD, and both annual and Chandler variations of PM; however, the annual variation could not be distinguished from the Chandler variation because the two frequencies were very close. The trends and periodic variations of LOD and PM were obtained in the least squares sense, and PM showed semi-annual, annual, and Chandler periods. Semi-annual, annual, and quasi-biennial cycles for LOD were also detected. The trend rates of PM in the X and Y directions were 3.17 and −1.60 mas per year, respectively, and the North Pole moved to 26.8°E relative to the crust during 2005–2010. The trend rate of the LOD change was 0.028 ms per year. |
format |
Article in Journal/Newspaper |
author |
Yi Shen Jinyun Guo Chunmei Zhao Xuemin Yu Jiulong Li |
author_facet |
Yi Shen Jinyun Guo Chunmei Zhao Xuemin Yu Jiulong Li |
author_sort |
Yi Shen |
title |
Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
title_short |
Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
title_full |
Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
title_fullStr |
Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
title_full_unstemmed |
Earth rotation parameter and variation during 2005–2010 solved with LAGEOS SLR data |
title_sort |
earth rotation parameter and variation during 2005–2010 solved with lageos slr data |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2015 |
url |
https://doi.org/10.1016/j.geog.2014.12.002 https://doaj.org/article/24ce828b94c742f1b31b30ffd509dea2 |
long_lat |
ENVELOPE(-59.682,-59.682,-64.490,-64.490) |
geographic |
Chandler North Pole |
geographic_facet |
Chandler North Pole |
genre |
North Pole |
genre_facet |
North Pole |
op_source |
Geodesy and Geodynamics, Vol 6, Iss 1, Pp 55-60 (2015) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S167498471500004X https://doaj.org/toc/1674-9847 1674-9847 doi:10.1016/j.geog.2014.12.002 https://doaj.org/article/24ce828b94c742f1b31b30ffd509dea2 |
op_doi |
https://doi.org/10.1016/j.geog.2014.12.002 |
container_title |
Geodesy and Geodynamics |
container_volume |
6 |
container_issue |
1 |
container_start_page |
55 |
op_container_end_page |
60 |
_version_ |
1766140753929568256 |