Probing fault frictional properties during afterslip up- and downdip of the 2017 Mw 7.3 Sarpol-e Zahab earthquake with space geodesy

This zip file contains measurements of postseismic surface deformation due to the 2017 Mw 7.3 Sarpol-e Zahab earthquake derived from Sentinel-1 SAR data over a time period of one year after the mainshock. The line-of-sight (LOS) displacements of each satellite track are provided in high-resolution NetCDF file format.

# data format: NetCDF grid file

dlos_yyyymmdd.grd  ---- cumulative LOS displacement since the first postseismic acquisition of each track (unit: meters);  
dates.dat  ----- dates of the SAR image acquisitions of each track (ASCII file)
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.

Contact: Kang Wang ([e-mail]  or [e-mail])

References:

Wang, K and R. Bürgmann (2020), Probing fault frictional properties during afterslip up- and downdip of the 2017 Mw 7.3 Sarpol-e Zahab earthquake with space geodesy, Journal of Geophysical Research: Solid Earth

本压缩包包含2017年Mw7.3级萨尔波勒扎哈卜地震引发的震后地表形变测量数据，该数据集基于主震后一年时间范围内的Sentinel-1合成孔径雷达（SAR）数据反演所得。每条卫星轨道的视线向（Line-of-sight, LOS）位移以高分辨率NetCDF文件格式提供。

# 数据格式：NetCDF网格文件

dlos_yyyymmdd.grd —— 各轨道首次震后SAR成像以来的累积视线向位移（单位：米）；
dates.dat —— 各轨道SAR图像的获取日期（ASCII格式文件）
look_e/n/u.grd —— 视线方向的东向、北向与垂向（向上）分量，满足如下关系式：
dlos_displacement = dUe×look_e + dUn×look_n + dUup×look_u
其中dUe、dUn、dUup分别代表东向、北向与向上的地表运动分量。

联系方式：王康（邮箱：[e-mail] 或 [e-mail]）

参考文献：
Wang, K 与 R. Bürgmann (2020), 利用空间大地测量技术探究2017年Mw7.3级萨尔波勒扎哈卜地震震后余滑上下盘的断层摩擦特性, 《地球物理学研究杂志：固体地球（Journal of Geophysical Research: Solid Earth）》