2019 Ridgecrest, CA Pre-Earthquake Digital Surface Model V2

<p>This dataset includes a suite of pre-seismic, 2-meter resolution optical digital surface models (DSMs) pre-dating the July 2019 Ridgecrest earthquakes. The DSMs were constructed using DigitalGlobe base imagery (©DigitalGlobe 2019) and the open source <a href='https://mjremotesensing.wordpress.com/setsm/'>SETSM software package </a>. DSMs are vertically and horizontally registered to a separate pre-event optical DSM that was registered to ICESat-1 data. The base imagery includes 0.5m and 0.3m panchromatic in-track stereo imagery acquired from the WorldView-2 and WorldView-3 satellites. The generation of this data sets was funded in part by SCEC in cooperation with the U.S. Geological Survey.</p> The naming description of individual DSMs is as follows: <br/><br /> <i>sensor_date _id1_id2_dem_2m-DEM.tif </i> <br /><br />where sensor is the sensor from which imagery was acquired (WV02-WorldView2, WV03-WorldView3), date is the acquisition dates in format YYMMMDD (i.e., 13AUG11), and id1 and id2 are the image identifier numbers provided by DigitalGlobe. <br /><br /> <p><b>NOTE:</b>This dataset covers a different spatial extent, and uses different base imagery than the similar dataset, <a href=\"https://doi.org/10.5069/G998854C\"> 2019 Ridgecrest, CA Pre-Earthquake Digital Surface Model.</a></p>

本数据集包含一套2019年7月里奇克莱斯特地震发生前的2米分辨率光学数字表面模型（Digital Surface Models，DSMs）。该DSMs由DigitalGlobe基础影像（©DigitalGlobe 2019）与开源<a href="https://mjremotesensing.wordpress.com/setsm/">SETSM软件包</a>构建而成。所有DSMs均已完成垂直与水平配准，匹配至另一套已配准至ICESat-1数据的震前光学数字表面模型。所用基础影像包含由WorldView-2与WorldView-3卫星获取的0.5米及0.3米全色沿轨立体影像。本数据集的生成工作部分由南加州地震中心（SCEC）联合美国地质调查局（U.S. Geological Survey）资助完成。<br/><br />单个DSM的命名规则如下：<br/><br /><i>sensor_date_id1_id2_dem_2m-DEM.tif</i><br/><br />其中，sensor为影像获取所用传感器（WV02代表WorldView2，WV03代表WorldView3），date为影像获取日期，格式为YYMMMDD（例如13AUG11），id1与id2为DigitalGlobe提供的影像标识符编号。<br/><br /><b>注意：</b>本数据集与类似数据集<a href="https://doi.org/10.5069/G998854C">《2019年加利福尼亚州里奇克莱斯特地震前数字表面模型》</a>的空间覆盖范围与所用基础影像均存在差异。