MASSIVE LINKING OF PS-INSAR DEFORMATIONS TO A NATIONAL AIRBORNE LASER POINT CLOUD

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Natijne, A. L. van^1¹ 

[1] Delft University of Technology, Department of Geoscience and Remote Sensing, Stevinweg 1, 2628CN Delft, The Netherlands^1

关键词: Airborne Laser Scanning;    PS-InSAR;    geolocation;    deformation monitoring;    local surface reconstruction;    data fusion;   

DOI  :  10.5194/isprs-archives-XLII-2-1137-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

Build on soft soil, close to sea level the Netherlands is at high risk for the effects of subsidence and deformation. Interferometric Synthetic Aperture Radar (InSAR) is successfully used to monitor the deformation trends at millimetre level. Unfortunately the InSAR deformation trends suffer from poor geolocation estimates, limiting the ability to link deformation behaviour to objects, such as buildings, streets or bridges. A nationwide, high resolution, airborne LiDAR point cloud is available in the Netherlands. Although the position accuracy of this LiDAR point cloud is to low for deformation estimates, linking the InSAR location to the geometries outlined by the LiDAR point can improve the geolocation estimates of the InSAR trends. To our knowledge no such integration is available as of yet. In this article we outline methods to link deformation estimates to the LiDAR point cloud and give an outlook of possible improvements. As a test we link 3.1 million TerraSAR-X InSAR Persistent Scatterers to 3 billion LiDAR points, covering the city of Delft and surroundings.

【 授权许可】

CC BY