{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T01:05:39Z","timestamp":1773450339915,"version":"3.50.1"},"reference-count":49,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2015,11,30]],"date-time":"2015-11-30T00:00:00Z","timestamp":1448841600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Global Positioning System (GPS) has been proved to be a powerful tool for measuring co-seismic ground displacements with an application to seismic source inversion. Whereas most of the tsunamis are triggered by large earthquakes, GPS can contribute to the tsunami early warning system (TEWS) by helping to obtain tsunami source parameters in near real-time. Toward the end of 2012, the second phase of the BeiDou Navigation Satellite System (BDS) constellation was accomplished, and BDS has been providing regional positioning service since then. Numerical results indicate that precision of BDS nowadays is equivalent to that of the GPS. Compared with a single Global Satellite Navigation System (GNSS), combined BDS\/GPS real-time processing can improve accuracy and especially reliability of retrieved co-seismic displacements. In the present study, we investigate the potential of BDS to serve for the early warning system of tsunamis in the South China Sea region. To facilitate early warnings of tsunamis and forecasting capabilities in this region, we propose to distribute an array of BDS-stations along the Luzon Island (Philippines). By simulating an earthquake with Mw = 8 at the Manila trench as an example, we demonstrate that such an array will be able to detect earthquake parameters in real time with a high degree of accuracy and, hence, contribute to the fast and reliable tsunami early warning system in this region.<\/jats:p>","DOI":"10.3390\/rs71215814","type":"journal-article","created":{"date-parts":[[2015,11,30]],"date-time":"2015-11-30T10:57:24Z","timestamp":1448881044000},"page":"15955-15968","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Precise Positioning of BDS, BDS\/GPS: Implications for Tsunami Early Warning in South China Sea"],"prefix":"10.3390","volume":"7","author":[{"given":"Kejie","family":"Chen","sequence":"first","affiliation":[{"name":"GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany"}]},{"given":"Natalia","family":"Zamora","sequence":"additional","affiliation":[{"name":"GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany"}]},{"given":"Andrey","family":"Babeyko","sequence":"additional","affiliation":[{"name":"GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany"}]},{"given":"Xingxing","family":"Li","sequence":"additional","affiliation":[{"name":"GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany"}]},{"given":"Maorong","family":"Ge","sequence":"additional","affiliation":[{"name":"GFZ German Research Centre for Geoscience, Telegrafenberg, 14473 Potsdam, Germany"}]}],"member":"1968","published-online":{"date-parts":[[2015,11,30]]},"reference":[{"key":"ref_1","unstructured":"NGDC\/WDS National Geophysical Data Center\/World Data Service (NGDC\/WDS), Available online: http:\/\/www.ngdc.noaa.gov\/hazard\/tsu_db.shtml."},{"key":"ref_2","unstructured":"Japan Meteorological Agency (JMA) (2013). Lessons Learned from the Tsunami Disaster Caused by the 2011 Great East Japan Earthquake and Improvements in JMA\u2019 s Tsunami Warning System, Japan Meteorological Agency."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.soildyn.2004.10.007","article-title":"Processing of strong-motion accelerograms: Needs, options and consequences","volume":"25","author":"Boore","year":"2005","journal-title":"Soil Dyn. Earthq. Eng."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1177","DOI":"10.1002\/jgrb.50135","article-title":"On robust and reliable automated baseline corrections for strong motion seismology","volume":"118","author":"Melgar","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"513","DOI":"10.5047\/eps.2011.05.019","article-title":"Outline of the 2011 off the Pacific coast of Tohoku Earthquake (Mw 9.0)\u2014Seismicity: Foreshocks, mainshock, aftershocks, and induced activity","volume":"63","author":"Hirose","year":"2011","journal-title":"Earth Planets Space"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"808","DOI":"10.1785\/gssrl.80.5.808","article-title":"A fast, non-saturating magnitude estimator for great earthquakes","volume":"80","author":"Bormann","year":"2009","journal-title":"Seismol. Res. Lett."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2611","DOI":"10.5194\/nhess-10-2611-2010","article-title":"Real-time earthquake monitoring for tsunami warning in the Indian Ocean and beyond","volume":"10","author":"Hanka","year":"2010","journal-title":"Nat. Hazards Earth Syst. Sci."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1111\/j.1365-246X.2008.03887.x","article-title":"Source inversion of W phase: Speeding up seismic tsunami warning","volume":"175","author":"Kanamori","year":"2008","journal-title":"Geophys. J. Int."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"535","DOI":"10.5047\/eps.2011.05.032","article-title":"Real-time W phase inversion during the 2011 off the Pacific coast of Tohoku Earthquake","volume":"63","author":"Duputel","year":"2011","journal-title":"Earth Planets Space"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"200","DOI":"10.1111\/j.1365-246X.2008.03974.x","article-title":"Mwpd: A duration-amplitude procedure for rapid determination of earthquake magnitude and tsunamigenic potential from P waveforms","volume":"176","author":"Lomax","year":"2009","journal-title":"Geophys. J. Int."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"2029","DOI":"10.1785\/0120110039","article-title":"An improved automatic scheme for empirical baseline correction of digital strong-motion records","volume":"101","author":"Wang","year":"2011","journal-title":"Bull. Seismol. Soc. Am."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Tu, R., Wang, R., Zhang, Y., and Walter, T.R. (2014). Application of a net-based baseline correction scheme to strong-motion records of the 2011 Mw 9.0 Tohoku earthquake. Geophys. J. Int., 204.","DOI":"10.1093\/gji\/ggu092"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"2904","DOI":"10.1785\/0120110007","article-title":"Real-time strong-motion broadband displacements from collocated GPS and accelerometers","volume":"101","author":"Bock","year":"2011","journal-title":"Bull. Seismol. Soc. Am."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Li, X., Ge, M., Zhang, Y., Wang, R., Guo, B., Klotz, J., Wickert, J., and Schuh, H. (2013). High-rate coseismic displacements from tightly integrated processing of raw GPS and accelerometer data. Geophys. J. Int., 195.","DOI":"10.1093\/gji\/ggt249"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"6089","DOI":"10.1002\/2013GL058391","article-title":"Earthquake magnitude scaling using seismogeodetic data","volume":"40","author":"Crowell","year":"2013","journal-title":"Geophys. Res. Lett."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"L11309","DOI":"10.1029\/2006GL026145","article-title":"Rapid determination of earthquake magnitude using GPS for tsunami warning systems","volume":"33","author":"Blewitt","year":"2006","journal-title":"Geophys. Res. Lett."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"B08415","DOI":"10.1029\/2006JB004640","article-title":"Tsunami early warning using GPS-Shield arrays","volume":"112","author":"Sobolev","year":"2007","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1617","DOI":"10.5194\/nhess-10-1617-2010","article-title":"Source modeling and inversion with near real-time GPS: A GITEWS perspective for Indonesia","volume":"10","author":"Babeyko","year":"2010","journal-title":"Nat. Hazards Earth Syst. Sci."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"181","DOI":"10.5194\/nhess-10-181-2010","article-title":"Near real-time GPS applications for tsunami early warning systems","volume":"10","author":"Falck","year":"2010","journal-title":"Nat. Hazards Earth Syst. Sci."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1285","DOI":"10.5194\/nhess-13-1285-2013","article-title":"Instant tsunami early warning based on real-time GPS\u2014Tohoku 2011 case study","volume":"13","author":"Hoechner","year":"2013","journal-title":"Nat. Hazards Earth Syst. Sci."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Ohta, Y., Kobayashi, T., Tsushima, H., Miura, S., Hino, R., Takasu, T., Fujimoto, H., Iinuma, T., Tachibana, K., and Demachi, T. (2012). Quasi real-time fault model estimation for near-field tsunami forecasting based on RTK-GPS analysis: Application to the 2011 Tohoku-Oki earthquake (Mw 9.0). J. Geophys. Res. Solid Earth, 117.","DOI":"10.1029\/2011JB008750"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Wright, T.J., Houli\u00e9, N., Hildyard, M., and Iwabuchi, T. (2012). Real-time, reliable magnitudes for large earthquakes from 1 Hz GPS precise point positioning: The 2011 Tohoku-Oki (Japan) earthquake. Geophys. Res. Lett.","DOI":"10.1029\/2012GL051894"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"703","DOI":"10.1111\/j.1365-246X.2011.05297.x","article-title":"Real-time centroid moment tensor determination for large earthquakes from local and regional displacement records","volume":"188","author":"Melgar","year":"2012","journal-title":"Geophys. J. Int."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"5197","DOI":"10.1002\/2015GL064278","article-title":"Earthquake magnitude calculation without saturation from the scaling of peak ground displacement","volume":"42","author":"Melgar","year":"2015","journal-title":"Geophys. Res. Lett."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1002\/grl.50138","article-title":"Real-time high-rate co-seismic displacement from ambiguity-fixed precise point positioning: Application to earthquake early warning","volume":"40","author":"Li","year":"2013","journal-title":"Geophys. Res. Lett."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1093\/gji\/ggt378","article-title":"Determination of earthquake magnitude using GPS displacement waveforms from real-time precise point positioning","volume":"196","author":"Fang","year":"2013","journal-title":"Geophys. J. Int."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"475","DOI":"10.1007\/s00190-013-0622-7","article-title":"Initial results of precise orbit and clock determination for COMPASS navigation satellite system","volume":"87","author":"Zhao","year":"2013","journal-title":"J. Geod."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"927","DOI":"10.3390\/s140100927","article-title":"Precise Point Positioning with the BeiDou Navigation Satellite System","volume":"14","author":"Li","year":"2014","journal-title":"Sensors"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"607","DOI":"10.1007\/s00190-015-0802-8","article-title":"Accuracy and reliability of multi-GNSS real-time precise positioning: GPS, GLONASS, BeiDou, and Galileo","volume":"89","author":"Li","year":"2015","journal-title":"J. Geod."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1016\/j.jseaes.2008.12.010","article-title":"Tsunami hazard and early warning system in South China Sea","volume":"36","author":"Liu","year":"2009","journal-title":"J. Asian Earth Sci."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"67","DOI":"10.1016\/j.jseaes.2008.09.009","article-title":"Tsunami propagation scenarios in the South China Sea","volume":"36","author":"Dao","year":"2009","journal-title":"J. Asian Earth Sci."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.1007\/s00024-010-0230-x","article-title":"Tsunami simulations for regional sources in the South China and adjoining seas","volume":"168","author":"Okal","year":"2010","journal-title":"Pure Appl. Geophys."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1250010","DOI":"10.1142\/S1793431112500108","article-title":"Tsunami hazard and casualty estimation in a coastal area the neighbors the Indian Ocean and South China Sea","volume":"6","author":"Suppasri","year":"2012","journal-title":"J. Earthq. Tsunami"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Sun, L., Zhou, X., Huang, W., Liu, X., Yan, H., Xie, Z., Wu, Z., Zhao, S., Shao, D., and Yang, W. (2013). Preliminary evidence for a 1000-year-old tsunami in the South China Sea. Sci. Rep., 3.","DOI":"10.1038\/srep01655"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1793","DOI":"10.5194\/nhess-10-1793-2010","article-title":"Written records of historical tsunamis in the northeastern South China Sea\u2014Challenges associated with developing a new integrated database","volume":"10","author":"Lau","year":"2010","journal-title":"Nat. Hazards Earth Syst. Sci."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1007\/s00024-012-0474-8","article-title":"A revised evaluation of tsunami hazards along the Chinese coast in view of the Tohoku-Oki Earthquake","volume":"170","author":"Jing","year":"2013","journal-title":"Pure Appl. Geophys."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Ren, Z.-Y., Liu, H., Wang, B.-L., and Zhao, X. (2014). An investigation on multi-buoy inversion method for Tsunami Warning System in South China Sea. J. Earthq. Tsunami, 8.","DOI":"10.1142\/S1793431114400041"},{"key":"ref_38","unstructured":"An, C. (2015). Inversion of Tsunami Waveforms and Tsunami warning. [Ph.D. Thesis, The Cornell University]."},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Colosimo, G., Crespi, M., and Mazzoni, A. (2011). Real-time GPS seismology with a stand-alone receiver: A preliminary feasibility demonstration. J. Geophys. Res. Solid Earth, 116.","DOI":"10.1029\/2010JB007941"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"5677","DOI":"10.1002\/2013GL057818","article-title":"Temporal point positioning approach for real-time GNSS seismology using a single receiver","volume":"40","author":"Li","year":"2013","journal-title":"Geophys. Res. Lett."},{"key":"ref_41","unstructured":"Kirby, S., and Geist, E. (2006, January 21\u201322). Great earthquake tsunami sources: Empiricism and beyond. Proceedings of the USGS Tsunami Sources Workshop, Menlo Park, CA, USA."},{"key":"ref_42","unstructured":"Wang, R. (1997). Tidal Phenomena, Springer."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1111\/j.1365-246X.1995.tb03540.x","article-title":"Constraints on seismic velocities in the Earth from traveltimes","volume":"122","author":"Kennett","year":"1995","journal-title":"Geophys. J. Int."},{"key":"ref_44","unstructured":"Goto, C., Ogawa, Y., Shuto, N., and Imamura, F. (1997). IUGG\/IOC Time Project, Numerical Method of Tsunami Simulation with the Leap-Frog Scheme, Unesco. IOC Manuals and Guides No. 35."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1956","DOI":"10.1126\/science.277.5334.1956","article-title":"Global sea floor topography from satellite altimetry and ship depth soundings","volume":"277","author":"Smith","year":"1997","journal-title":"Science"},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Meyers, R.A. (2009). Encyclopedia of Complexity and Systems Science SE\u2014568, Springer.","DOI":"10.1007\/978-0-387-30440-3"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"1220","DOI":"10.1111\/j.1365-246X.2009.04228.x","article-title":"Afterslip and viscoelastic relaxation following the 1999 M 7.4 \u0130zmit earthquake from GPS measurements","volume":"178","author":"Wang","year":"2009","journal-title":"Geophys. J. Int."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"5939","DOI":"10.1002\/2013JB010506","article-title":"Near-field tsunami models with rapid earthquake source inversions from land- and ocean-based observations: The potential for forecast and warning","volume":"118","author":"Melgar","year":"2013","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"3324","DOI":"10.1002\/2014JB011832","article-title":"Kinematic earthquake source inversion and tsunami runup prediction with regional geophysical data","volume":"120","author":"Melgar","year":"2015","journal-title":"J. Geophys. Res. Solid Earth"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/12\/15814\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:53:00Z","timestamp":1760215980000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/12\/15814"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,11,30]]},"references-count":49,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2015,12]]}},"alternative-id":["rs71215814"],"URL":"https:\/\/doi.org\/10.3390\/rs71215814","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,11,30]]}}}