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Newly Velocity Field of Sulawesi Island from GPS Observation

机译:来自GPS观察的苏拉威西岛的新速度领域

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Sulawesi microplate Island is located at famous triple junction area of the Eurasian, India-Australian, and Philippine Sea plates. Under the influence of the northward moving Australian plate and the westward motion of the Philippine plate, the island at Eastern part of Indonesia is collide and with the Eurasian plate and Sunda Block. Those recent microplate tectonic motions can be quantitatively determine by GNSS-GPS measurement. We use combine GNSS-GPS observation types (campaign type and continuous type) from 1997 to 2015 to derive newly velocity field of the area. Several strategies are applied and tested to get the optimum result, and finally we choose regional strategy to reduce error propagation contribution from global multi baseline processing using GAMIT/GLOBK 10.5. Velocity field are analyzed in global reference frame ITRF 2008 and local reference frame by fixing with respect alternatively to Eurasian plate - Sunda block, India-Australian plate and Philippine Sea plates. Newly results show dense distribution of velocity field. This information is useful for tectonic deformation studying in geospatial era.
机译:Sulawesi Microplate Island酒店位于欧亚,印度 - 澳大利亚和菲律宾海底的着名三角区。在北方移动澳大利亚板块的影响和菲律宾板的向西运动,印度尼西亚东部的岛屿碰撞,与欧亚板块和苏达街区碰撞。最近的微孔板构造运动可以通过GNSS-GPS测量定量确定。我们使用1997年至2015年的组合GNSS-GPS观察类型(广告系列类型和连续类型)来派生该地区的新速度场。应用了几种策略并测试以获得最佳结果,最后我们选择使用Gamit / Globk 10.5来减少全局多基线处理的误差传播贡献。在全球参考框架ITRF 2008和局部参考框架中分析速度场,通过尊重欧亚板块 - Sunda Block,印度 - 澳大利亚板块和菲律宾海底。新结果表明速度场的密集分配。这些信息对于在地理空间时代的构造变形研究是有用的。

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