New approach for earthquake/tsunami monitoring using dense GPS networks.

New approach for earthquake/tsunami monitoring using dense GPS networks.
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DOI:
10.1038/srep02682
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Schuh, Harald
Schuh, Harald
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li, Xingxing;Ge, Maorong;Zhang, Yong;Wang, Rongjiang;Xu, Peiliang;Wickert, Jens;Schuh, Harald

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近年来,世界各地安装了越来越多的高速率全球定位系统台站,这些台站的设置是为了提供实时数据。这些网络提供了一个很好的机会,以快速捕捉表面位移,这使得他们作为地震/海啸监测和预警系统的潜在组成部分的重要性。为此目的,具有足够精度的适当的GPS实时数据分析是当前GPS研究的主要焦点。本文提出了一种基于GPS的灾害监测增广点定位方法,该方法可以实现快速甚至瞬时的精确定位,而不依赖于特定参考站的数据。该方法克服了目前常用的GPS相对定位和全球精密单点定位处理方法的局限性。使用GPS数据,这是在2011年日本东北冲地震期间记录所提出的方法的优点证明。
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.
DOI: 10.1785/gssrl.80.5.772
发表时间: 2009-09-01
影响因子: 3.3
作者:
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