Finite-Source Model of the M6.0 July 8, 2021 Antelope Valley, CA Earthquake

This zip file contains the InSAR line-of-sight (LOS) displacements derived from Sentinel-1 data collected along four satellite tracks (T42,T64, T137, T144) covering the 2021 M6 Antelope Valley earthquake in Eastern California. For each track, all possible interferograms of roughly 1-month long in time spanning the earthquake without sharing a common scene are stacked to obtain the average coseismic LOS displacement. See text for details. # data format: NetCDF grid file "dlos_stack_coseismic.grd" ---- average coseismic LOS displacement (unit: meters); positive value corresponds to surface deformation toward the satellite. look_e/n/u.grd --- East, North, Vertical (Up) components of the line-of-sight direction, so that dlos_displacement = dUe*look_e + dUn*look_n + dUup*look_u where dUe, dUn, and dUup represent the Eastward, Northward, and Upward surface motion. We also provide the ascii-format downsampled LOS displacement of each track that went into the coseismic slip modeling ("dlos_stack_coseismic_samp.txt"). The file contains 6 columns: #longitude latitude dLOS(cm) vE vN vUp Questions: Kang Wang ([e-mail])

本压缩包包含由哨兵-1（Sentinel-1）卫星数据提取得到的合成孔径雷达干涉测量（Interferometric Synthetic Aperture Radar，InSAR）视线向（Line-of-Sight，LOS）形变场，数据覆盖沿四条卫星轨道（T42、T64、T137、T144）获取的、对应2021年加利福尼亚东部安蒂洛普谷M6级地震的观测序列。针对每条轨道，我们将覆盖该地震事件、时间跨度约1个月且无共用观测影像的所有可行干涉图进行堆叠，以获取平均同震视线向形变量。详细信息请参阅相关文本说明。

### 数据格式：
1. NetCDF网格文件"dlos_stack_coseismic.grd"：存储平均同震视线向形变量，单位为米；正值代表地表形变朝向卫星。
2. look_e/n/u.grd：存储视线向分量的东向、北向与垂向（向上）分量，满足关系式`dlos_displacement = dUe*look_e + dUn*look_n + dUup*look_u`，其中`dUe`、`dUn`与`dUup`分别对应地表东向、北向与向上的运动分量。

本数据集同时提供用于同震滑动反演的、各轨道经降采样处理的ASCII格式视线向形变量数据，对应文件为"dlos_stack_coseismic_samp.txt"。该文件共包含6列数据，依次为：经度、纬度、视线向形变量（单位：厘米）、东向运动速率、北向运动速率、垂向向上运动速率。

垂询方式：王康（[e-mail]）