Science Service System

Summary of Proposal LAN2211

TitleSubsidence Monitoring of Potash Works Siegfried-Giesen
Investigator Schmidt, Ralph - Leibniz Universität Hannover, Institut für Photogrammetrie und GeoInformation
Team Members
Prof. Heipke, Christian - Leibniz Universität Hannover, Institute of Photogrammetry and GeoInformation
Dr.-Ing. Schmidt, Ralph - Leibniz Universität Hannover, Institute of Photogrammetry and GeoInformation
Dr. Jahn, Cord-Hinrich - Landesamt für Geoinformation und Landentwicklung Niedersachsen, Fachbereich 43 Landesbezugssystem
SummaryThe currentness of geo-data is of high importance to the national surveying agencies. In case local or regional land subsidence or motion occur these have to be measured and documented. Within the frame of methods for quality management monitoring measurements must be carried out. For this activity up-to-date and economical measurement methods have to be employed. To fulfil these requirements the Landesamt für Geoinformation und Landentwicklung Niedersachsen (LGLN) takes SAR interferometry into consideration. The potash works Siegfried-Giesen of K+S AG is used as testbed for the applicability of SAR interferometry for the tasks described above. For this investigation a DInSAR analysis of the area will be carried out. In particular the new Staring Spotlight mode of TerraSAR-X will be analyzed with respect to the high accuracy and high resolution requirements of LGLN. For the realization of this investigation three or four images in Staring Spotlight mode for DInSAR analysis are necessary in which the first two acquisitions shall be taken directly in a row (eleven days later). The time difference to the third and fourth image can be larger. For comparison an equal amount of High-Resolution Spotlight mode images are needed acquired around the same time. Funding is provided by LGLN.

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