{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T05:19:23Z","timestamp":1782537563374,"version":"3.54.5"},"reference-count":39,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2019,6,11]],"date-time":"2019-06-11T00:00:00Z","timestamp":1560211200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Basic Research Program of China (973 Program)","award":["2013CB733205"],"award-info":[{"award-number":["2013CB733205"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41074023"],"award-info":[{"award-number":["41074023"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>There is always a need to extract more accurate regional common mode component (CMC) series from coordinate time series of Global Positioning System (GPS) stations, which would be of great benefit to describe the deformation features of the Earth\u2019s surface with more reliability. For this purpose, this paper combines all 11 International Global Navigation Satellite System (GNSS) Service (IGS) stations in China with over 70 stations selected from the Crustal Movement Observation Network of China (CMONOC) to compute CMC series of IGS stations by using a principal component analysis (PCA) method under cases of one whole region and eight sub-regions. The comparison results show that the percentage of first-order principal component (PC1) in North, East and Up components increase by 10.8%, 16.1% and 25.1%, respectively, after dividing the whole China region into eight sub-regions. Meanwhile, Root Mean Square (RMS) reduction rates of residual series that have removed CMC also improve obviously after partitioning. In addition, we compute displacements of these IGS stations caused by environmental loadings (including atmospheric pressure loading, non-tidal oceanic loading and hydrological loading) to analyze their contributions to the non-linear variation in GPS coordinate time series. The comparison result shows that the method we raise, PCA filtering in sub-regions, performs better than the environmental loading corrections (ELCs) in improving the signal-to-noise ratio (SNR) of GPS coordinate time series. This paper raises new criteria for selecting appropriate CMONOC stations around IGS stations when computing sub-regional CMC, involving three criteria of interstation distance, geology and self-condition of stations themselves. According to experiments, these criteria are implemental and effective in selecting suitable stations, by which to extract sub-regional CMC with higher accuracy.<\/jats:p>","DOI":"10.3390\/rs11111389","type":"journal-article","created":{"date-parts":[[2019,6,11]],"date-time":"2019-06-11T10:55:44Z","timestamp":1560250544000},"page":"1389","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A Sub-Regional Extraction Method of Common Mode Components from IGS and CMONOC Stations in China"],"prefix":"10.3390","volume":"11","author":[{"given":"Shuguang","family":"Wu","sequence":"first","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1271-7968","authenticated-orcid":false,"given":"Guigen","family":"Nie","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"},{"name":"Collaborative Innovation Center for Geospatial Information Technology, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingnan","family":"Liu","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kezhi","family":"Wang","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Changhu","family":"Xue","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Wang","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haiyang","family":"Li","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fengyou","family":"Peng","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaobin","family":"Ren","sequence":"additional","affiliation":[{"name":"GNSS Research Center, Wuhan University, Wuhan 430079, Hubei, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,6,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1002\/cjg2.1507","article-title":"The method in establishing strain field and velocity field of crustal movement using least squares collocation","volume":"53","author":"Jiang","year":"2010","journal-title":"Chin. J. Geophys."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"5722","DOI":"10.1002\/2013JB010503","article-title":"Three-dimensional velocity field of present-day crustal motion of the Tibetan Plateau derived from GPS measurements","volume":"118","author":"Liang","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3849","DOI":"10.1002\/2014GC005407","article-title":"A geodetic plate motion and Global Strain Rate Model","volume":"15","author":"Kreemer","year":"2014","journal-title":"Geochem. Geophys. Geosyst."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1088","DOI":"10.1093\/gji\/ggw445","article-title":"Present-day velocity field and block kinematics of Tibetan Plateau from GPS measurements","volume":"208","author":"Wang","year":"2017","journal-title":"Geophys. J. Int."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1823","DOI":"10.1007\/s00024-017-1494-1","article-title":"Estimates of Vertical Velocity Errors for IGS ITRF2014 Stations by Applying the Improved Singular Spectrum Analysis Method and Environmental Loading Models","volume":"175","author":"Klos","year":"2018","journal-title":"Pure Appl. Geophys."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Yuan, P., Jiang, W.P., Wang, K.H., and Sneeuw, N. (2018). Effects of Spatiotemporal Filtering on the Periodic Signals and Noise in the GPS Position Time Series of the Crustal Movement Observation Network of China. Remote Sens., 10.","DOI":"10.3390\/rs10091472"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"18057","DOI":"10.1029\/97JB01378","article-title":"Southern California permanent GPS geodetic array: Spatial filtering of daily positions for estimating coseismic and postseismic displacement induced by the 1992 Landers earthquake","volume":"102","author":"Wdowinski","year":"1997","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"ETG 3-1","DOI":"10.1029\/2001JB000400","article-title":"Continuous GPS measurements of postglacial adjustment in Fennoscandia-1. Geodetic results","volume":"107","author":"Johansson","year":"2002","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1581","DOI":"10.1029\/2005JB003806","article-title":"Spatiotemporal filtering using principal component analysis and Karhunen\u2014Loeve expansion approaches for regional GPS network analysis","volume":"111","author":"Dong","year":"2006","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_10","first-page":"1372","article-title":"Characteristics of daily position time series from the Hong Kong GPS fiducial network","volume":"51","author":"Yuan","year":"2008","journal-title":"Chin. J. Geophys."},{"key":"ref_11","first-page":"149","article-title":"Crustal velocity field of Mexico from continuous GPS measurements, 1993 to June 2001: Implications for the neotectonics of Mexico","volume":"108","author":"DeMets","year":"2003","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"6003","DOI":"10.1002\/2013JB010102","article-title":"Vertical GPS ground motion rates in the Euro-Mediterranean region: New evidence of velocity gradients at different spatial scales along the Nubia-Eurasia plate boundary","volume":"118","author":"Serpelloni","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s00190-013-0663-y","article-title":"Spatiotemporal filtering of regional GNSS network\u2019s position time series with missing data using principle component analysis","volume":"88","author":"Shen","year":"2014","journal-title":"J. Geod."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1316","DOI":"10.1016\/j.asr.2014.12.016","article-title":"Accuracy enhancement of GPS time series using principal component analysis and block spatial filtering","volume":"60","author":"He","year":"2015","journal-title":"Adv. Space Res."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1080","DOI":"10.1002\/2015JB012253","article-title":"Extracting the regional common-mode component of GPS station position time series from dense continuous network","volume":"121","author":"Tian","year":"2016","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_16","first-page":"2783","article-title":"The coordinate time series analysis of continuous GPS stations in the Antarctic Peninsula with consideration of common mode error","volume":"59","author":"Ma","year":"2016","journal-title":"Chin. J. Geophys."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1007\/s00190-016-0973-y","article-title":"Spatiotemporal filtering for regional GPS network in China using independent component analysis","volume":"91","author":"Ming","year":"2017","journal-title":"J. Geod."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"2896","DOI":"10.1016\/j.asr.2017.05.002","article-title":"Quantitative Analysis of Geophysical Sources of Common Mode Component in CMONOC GPS Coordinate Time Series","volume":"60","author":"Zhu","year":"2017","journal-title":"Adv. Space Res."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Yuan, P., Li, Z., Jiang, W.P., Ma, Y.F., Chen, W., and Sneeuw, N. (2018). Influences of Environmental Loading Corrections on the Nonlinear Variations and Velocity Uncertainties for the Reprocessed Global Positioning System Height Time Series of the Crustal Movement Observation Network of China. Remote Sens., 10.","DOI":"10.3390\/rs10060958"},{"key":"ref_20","first-page":"355","article-title":"Velocity estimation on the colored noise properties of CORS network in China based on the CGCS2000 frame","volume":"39","author":"Jiang","year":"2010","journal-title":"Acta Geod. Cartogr. Sin."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"B03412","DOI":"10.1029\/2003JB002741","article-title":"Error analysis of continuous GPS position time series","volume":"109","author":"Williams","year":"2004","journal-title":"J. Geophys. Res."},{"key":"ref_22","unstructured":"Tian, Y.F. (2011). Study on Intermediate- and long-term Errors in GPS Position Time Series. [Ph.D. Thesis, Institute of Geology, China Earthquake Administration]."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"761","DOI":"10.1029\/RG010i003p00761","article-title":"Deformation of the Earth by surface loads","volume":"10","author":"Farrell","year":"1972","journal-title":"Rev. Geophys."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1281","DOI":"10.1029\/JB092iB02p01281","article-title":"Displacements of the Earth\u2019s surface due to atmospheric loading: Effects on gravity and baseline measurements","volume":"92","author":"Wahr","year":"1987","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_25","unstructured":"Grafarend, E. (2016). Loading Effects and Reference Frames. Encyclopedia of Geodesy, Springer."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"5008","DOI":"10.1002\/jgrb.50353","article-title":"Numerical simulations of global-scale high-resolution hydrological crustal deformations","volume":"118","author":"Dill","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/S1463-5003(02)00015-X","article-title":"The Max-Planck-Institute global ocean\/sea ice model with orthogonal curvilinear coordinates","volume":"5","author":"Marsland","year":"2003","journal-title":"Ocean Model."},{"key":"ref_28","unstructured":"Dill, R. (2008). Hydrological Model LSDM for Operational Earth Rotation and Gravity Field Variations, GFZ. Scientific Technical Report STR08\/09."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"B2","DOI":"10.1029\/2002JB002082","article-title":"Self-consistency in reference frames, geocenter definition, and surface loading of the solid Earth","volume":"108","author":"Blewitt","year":"2003","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_30","first-page":"1217","article-title":"Analysis of environmental loading effects on regional GPS coordinate time series","volume":"43","author":"Jiang","year":"2014","journal-title":"Acta Geod. Cartogr. Sin."},{"key":"ref_31","first-page":"2402","article-title":"Noise analysis of the coordinate time series of the continuous GPS stations and deformation patterns in the Antarctic Peninsula","volume":"59","author":"Li","year":"2016","journal-title":"Chin. J. Geophys."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1002\/env.628","article-title":"Robust principal component analysis and outlier detection with ecological data","volume":"15","author":"Jackson","year":"2004","journal-title":"Environmetrics"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1007\/s00190-013-0685-5","article-title":"Trajectory models and reference frames for crustal motion geodesy","volume":"88","author":"Bevis","year":"2014","journal-title":"J. Geod."},{"key":"ref_34","unstructured":"Nikolaidis, R. (2002). Observation of Geodetic and Seismic Deformation with the Global Positioning System. [Ph.D. Thesis, University of California]."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"2397","DOI":"10.1002\/jgrb.50152","article-title":"Detecting offsets in GPS time series: First results from the detection of offsets in GPS experiment","volume":"118","author":"Gazeaux","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_36","first-page":"198","article-title":"Present-time crustal deformation in China and surrounding regions by GPS","volume":"45","author":"Wang","year":"2002","journal-title":"Chin. J. Geophys."},{"key":"ref_37","first-page":"1024","article-title":"Geotectonic division of China and some related problems","volume":"31","author":"Liu","year":"2012","journal-title":"Geol. Bull. China"},{"key":"ref_38","first-page":"1","article-title":"Tectonic regional subdivision of China in the light of plate theory","volume":"42","author":"Liu","year":"2015","journal-title":"Geol. China"},{"key":"ref_39","first-page":"2228","article-title":"Cause analysis of the non-linear variation of the IGS reference station coordinate time series inside China","volume":"56","author":"Jiang","year":"2013","journal-title":"Chin. J. Geophys."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/11\/1389\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:57:28Z","timestamp":1760187448000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/11\/1389"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,6,11]]},"references-count":39,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2019,6]]}},"alternative-id":["rs11111389"],"URL":"https:\/\/doi.org\/10.3390\/rs11111389","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,6,11]]}}}