Data supplement to: A tsunami generated by a strike-slip event: constraints from GPS and SAR data on the 2018 Palu earthquake

This data set contains input data and modelling results for the paper: A tsunami generated by a strike-slip event: constraints from GPS and SAR data on the 2018 Palu earthquake, published in Journal of Geophysical Research: Solid Earth. <br> This set contains the following data and model results: <br> - <em><strong>GPSrepo.zip</strong></em>: co-seismic displacement estimates of the 28 September 2018 Palu earthquake; kinematic GPS positions before and after the earthquake; and raw GPS data in RINEX format. <br> - <em><strong>SAR_displacements.zip</strong></em>: co-seismic displacement fields for the 28 September 2018 Palu earthquake, using SAR offsets, Multiple Aperture Interferometry (MAI) and InSAR. Includes incidence and azimuth angles, and additional information on the orbits. <br> - <em><strong>bathymetry.zip</strong></em>: contains grid of bathymetry and topography as used in the study. It encompasses an area with longitude range [118.5 121.5] and longitude range [-2 1]. <br> - <em><strong>3d_displacements.zip</strong></em>: co-seismic 3D displacement estimates of the 28 September 2018 Palu earthquake on a triangular grid based on GPS and SAR data. Also includes gridded input data. <br> - <em><strong>optical_data_polygons_inundation.zip</strong></em>: shapefiles of the outlines of inundated coastal areas of Palu Bay after the 28 September 2018 Palu earthquake and tsunami, based on optical data. <br> - <em><strong>finite_fault_models.zip</strong></em>: Finite fault solutions for scenarios I-VI as described in the paper, including the preferred scenario IV, which best describes the tsunami observations. <br> - <em><strong>Vertical_Displacements_Bay_scenario_IV.zip</strong></em>: Vertical displacements from preferred scenario IV as described in the paper for the Palu Bay region. Includes vertical displacements, and separately the effect of horizontal displacements on vertical displacements, as well as the full vertical displacement combining both. <br> <br> <br> Each separate archive contains its own README file that describes the contents of the archive. More detailed information on the derivation of (model) results can be found in the accompanying paper and its supporting information.<br> <br> <br>

本数据集对应发表于《Journal of Geophysical Research: Solid Earth》（《地球物理学研究杂志：固体地球》）的论文《A tsunami generated by a strike-slip event: constraints from GPS and SAR data on the 2018 Palu earthquake》（《走滑事件引发的海啸：基于GPS与合成孔径雷达（Synthetic Aperture Radar, SAR）数据约束的2018年帕卢地震》），包含输入数据与建模结果。

本数据集包含以下数据与模型结果：
- **GPSrepo.zip**：2018年9月28日帕卢地震的同震位移估算结果、地震前后的运动学GPS点位数据，以及RINEX格式的原始GPS数据。
- **SAR_displacements.zip**：2018年9月28日帕卢地震的同震位移场，基于SAR偏移量、多孔径干涉测量（Multiple Aperture Interferometry, MAI）与合成孔径雷达干涉测量（Interferometric Synthetic Aperture Radar, InSAR）生成，包含入射角与方位角数据，以及轨道相关的附加信息。
- **bathymetry.zip**：包含本研究中使用的水深与地形网格数据，覆盖区域的经度范围为[118.5, 121.5]，纬度范围为[-2, 1]。
- **3d_displacements.zip**：基于GPS与SAR数据，通过三角网格得到的2018年9月28日帕卢地震同震三维位移估算结果，同时包含网格化输入数据。
- **optical_data_polygons_inundation.zip**：基于光学数据生成的2018年9月28日帕卢地震及海啸后，帕卢湾沿海淹没区域轮廓的形状文件（Shapefile）。
- **finite_fault_models.zip**：论文中所述的场景I至VI的有限断层解，其中包含最贴合海啸观测结果的优选场景IV。
- **Vertical_Displacements_Bay_scenario_IV.zip**：论文中所述的、针对帕卢湾区域的优选场景IV的垂直位移数据，包含单独的垂直位移量、水平位移对垂直位移的影响分量，以及二者叠加得到的总垂直位移量。

每个独立存档均包含自身的README文件，用于说明该存档内的内容。关于（模型）结果的更详细推导过程，可参阅随附的论文及其补充材料。