Print Email Facebook Twitter PALSAR InSAR Processing, Subsidence of agricultural highland regions in Yemen Title PALSAR InSAR Processing, Subsidence of agricultural highland regions in Yemen Author Speth, K.A.J. Contributor Hanssen, R. (mentor) Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Programme Applied Earth Science Date 2012-12-18 Abstract The use of Interferometric Synthetic Aperture Radar (InSAR) to monitor ground subsidence and the general principles behind InSAR were studied and summarized. The obtained knowledge was used to process the Phased Array type L-band Synthetic Aperture Radar (PALSAR) data of the region between Sana’a and Dhamar, Yemen, from raw data to interferograms. During this processing unwrapping proved to be a difficult procedure creating phase jumps. This problem can increased in size when using wrong mask. After unwrapping in the best possible way and filtering the result, three basins turned out to subside with high rates. The biggest basin at an average maximum rate of 32 cm?yr and the smaller basin with an average maximum rate of 53 cm?yr. This subsidence is not linear during the year, in the summer subsidence is faster than during the winter. Subject InSARYemenALOSPALSARMabar To reference this document use: http://resolver.tudelft.nl/uuid:40899215-ed42-47f3-8944-a22ff421d6b2 Part of collection Student theses Document type bachelor thesis Rights (c) 2012 Speth, K.A.J. Files PDF PALSAR_InSAR_Processing4_ ... proved.pdf 4.18 MB Close viewer /islandora/object/uuid:40899215-ed42-47f3-8944-a22ff421d6b2/datastream/OBJ/view