A pre-EarthScope ground velocity map for the Basin and Range Province based on InSAR

Falk Amelung和Tim Dixon，美国迈阿密大学，本项目对欧洲遥感卫星（ERS）获取的SAR数据进行了分析，得到了一个新的、高空间分辨率、高精度的西部盆地和山脉省1992-2004年期间的地面速度场。欧洲空间局提供2000幅SAR图像以支持该项目。InSAR的速度场可以解释为垂直速度场，因为InSAR测量的速度方向是雷达卫星的视线方向，几乎是垂直的。采用新的叠加和时间序列分析方法实现高精度测量。InSAR速度场用于探测西部盆地和山脉的地面变形增加区域，可以使用EarthScope进行详细的多学科测量活动。将这一前地球镜速度场与地球镜时代速度场进行对比，将为了解盆地西部和山脉的瞬态变形性质提供新的认识。

0454552AmelungAn InSAR ground velocity field for the Western Basin and Range Falk Amelung and Tim Dixon, University of Miami In this project SAR data acquired by the European Remote Sensing satellites (ERS) is analyzed to derive a new, high spatial resolution, high accuracy, surface velocity field of the Western Basin and Range Province during the 1992-2004 time period. The European Space Agency provides 2000 SAR images in support of this project. The InSAR velocity field can be interpreted as the vertical velocity field because InSAR measures velocities in direction of the line-of-sight of the radar satellite which is nearly vertical. High precision measurements are achieved using new stacking and time series analysis methods. The InSAR velocity field serves to detect areas of increased ground deformation in the Western Basin and Range that can be targeted using detailed, multi-disciplinary measurements campaigns by EarthScope. Comparison of this pre-Earthscope velocity field with the velocity field of the Earthscope era will provide new insights into the nature of transient deformation in the Western Basin and Range.