title: New approach for earthquake/tsunami monitoring using dense GPS networks.
abstract: In recent times increasing numbers of high-rate GPS stations have been installed around the world and set-up to provide data in real-time. These networks provide a great opportunity to quickly capture surface displacements, which makes them important as potential constituents of earthquake/tsunami monitoring and warning systems. The appropriate GPS real-time data analysis with sufficient accuracy for this purpose is a main focus of the current GPS research. In this paper we propose an augmented point positioning method for GPS based hazard monitoring, which can achieve fast or even instantaneous precise positioning without relying on data of a specific reference station. The proposed method overcomes the limitations of the currently mostly used GPS processing approaches of relative positioning and global precise point positioning. The advantages of the proposed approach are demonstrated by using GPS data, which was recorded during the 2011 Tohoku-Oki earthquake in Japan.
authors.affiliation: 1] German Research Centre for Geosciences (GFZ), Telegrafenberg, 14473 Potsdam, Germany [2] Wuhan University, 129 Luoyu Road, 430079, Wuhan, China.
authors.forename: Xingxing
authors.initials: X
authors.lastname: Li
authors.forename: Maorong
authors.initials: M
authors.lastname: Ge
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Rongjiang
authors.initials: R
authors.lastname: Wang
authors.forename: Peiliang
authors.initials: P
authors.lastname: Xu
authors.forename: Jens
authors.initials: J
authors.lastname: Wickert
authors.forename: Harald
authors.initials: H
authors.lastname: Schuh
mesh_terms: D055866:Earthquakes; D040362:Geographic Information Systems; D005843:Geography; D006801:Humans; D007564:Japan; D058998:Remote Sensing Technology; D013997:Time Factors; D057192:Tsunamis
references.citation: Science. 2003 May 30;300(5624):1421-4
references.pmid: 12750480
references.citation: Science. 2011 Jun 17;332(6036):1421-5
references.pmid: 21596953