Getting ready for the generation of a nationwide ground motion product for Great Britain using SAR dta stacks: feasibility, data volumes and perspectives

Cigna, Francesca. 2015 Getting ready for the generation of a nationwide ground motion product for Great Britain using SAR dta stacks: feasibility, data volumes and perspectives. In: IGARSS 2015 : Remote Sensing Understanding the Earth for a Safer World, Milan, Italy, 26-31 July 2015. IEEE.

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Abstract/Summary

This paper discusses the feasibility of monitoring ground stability and motion across the entire British landmass using satellite InSAR techniques. The ERS-1/2 and ENVISAT archive data availability, topographic visibility and land cover constraints for multi-temporal InSAR techniques to succeed across Britain are analysed. Data volumes, hardware and software requirements for the generation of a nationwide InSAR product are discussed, with a view to both novel processing methods to extend InSAR across unfavourable land covers, and parallel and cloud computing systems to decrease InSAR processing time demands. The P-SBAS method implemented into ESA’s G-POD platform is tested for London and Newcastle using ERS-1/2 1992-2000 and ENVISAT 2002-2008 image stacks, revealing a decrease of the processing time demand from several days to only ~8 hours per image frame.