High Resolution Topography of the Kashihe Fault, northern Tian Shan

This dataset comprises six high-resolution structure-from-motion (SfM) models (<0.5 m/pixel) surveyed by a small four-rotor unmanned drones along the Kashihe Fault which is a Holocene active right-lateral strike-slip fault and bounds the northern margin of the Ili Basin in the northern Tian Shan. The flight height of unmanned drones was set from 140 to 200 m based on the different target areas. The images were processed with Agisoft Photoscan Pro software. After manual identification of the GCP targets with a horizontal error of 2 cm and a vertical error of 4 cm, high-precision digital elevation models (DEMs) (<0.5 m/pixel) were obtained using Photoscan to transpose from a relative to an absolute coordinate system. The DEMs display the fault kinematics and offsets on the late Quaternary geomorphic surfaces for six local areas.

本数据集包含由小型四旋翼无人机沿喀什河断裂带进行测绘的六款高分辨率运动结构（SfM）模型（分辨率小于0.5米/像素）。喀什河断裂带是一处全新世活动性的右旋走滑断裂带，它界定了天山北部伊犁盆地的北部边缘。无人机的飞行高度根据不同的目标区域设定在140至200米之间。图像处理采用了Agisoft Photoscan Pro软件。经过手动识别地面控制点（GCP）目标，水平误差为2厘米，垂直误差为4厘米，利用Photoscan软件将相对坐标系转换为绝对坐标系，从而获得了高精度的数字高程模型（DEM，分辨率小于0.5米/像素）。这些DEM展示了六个局部地区晚第四纪地貌表面上的断裂动力学和位移。