SBAS-DInSAR processing on the ESA Geohazards Exploitation Platform

In the context of space-borne geodetic techniques, Differential Synthetic Aperture Radar Interferometry (DInSAR) has demonstrated its high performance in measuring surface displacements in different conditions and scenarios, both natural and anthropic. In particular, the advanced DInSAR time series processing method referred to as Small BAseline Subset (SBAS), that allows studying both the spatial and temporal variability of the surface displacements, has proven to be particularly suitable in different contexts, as for natural hazards (volcanoes, earthquakes and landslides) and human-induced deformation (subsidence due to aquifer exploitation, mining operations, and building of large infrastructures). Recently, an efficient implementation of this algorithm (referred to as P-SBAS approach) has been fully integrated within the ESA’s Grid Processing on Demand (G-POD) environment, which is part of the Geohazards Thematic Exploitation Platform (GEP) of ESA. The GEP is devoted to the exploitation of EO data resources in the context of the Geohazard Supersites & Natural Laboratories as well as on the CEOS Pilots on Seismic Hazards and Volcanoes. The GEP is sourced with elements, data and processing, including P-SBAS, relevant to the geohazards theme. The integration of the P-SBAS algorithm within GEP resulted in a web-based tool freely available to the scientific community. This tool allows users to process, from their own laptops, the European SAR data archives (ERS, ENVISAT and Sentinel-1) for obtaining surface displacement maps and time series in a completely unsupervised way, without caring about data download and processing facility procurements. The workshop is organized in four parts. First, a short overview on the DInSAR processing methods allowing retrieving mean surface deformation maps and displacement time series will be provided, with a specific focus on the SBAS-DInSAR technique. Secondly, the GEP and G-POD environments will be introduced and the P-SBAS web tool will be presented. The third and the fourth parts are dedicated to the advanced features and to case studies and results achieved via the web tool, respectively.

Hi Service Provider,

I have been trying to use this service but it is not working for me. I got object reference not set to an instance of an object error. Please see the task id: d2f9e7c4-2303-4600-8d55-9c62646e8ab0

Thanking you in advance.

Hi Emmanuel,
we’ll come back to you directly on your support space (new ticket created upon your email to Support).
Meanwhile, we are investigating on the reported issue.
Best regards
Hervé

Thank you for you kind reply. I look forward to hearing from you very soon.

Hi!
I am facing the same issue Object reference not set to an instance of an object when trying to remove features from the basket, adding new features, and loading my data package. Could you please help me? Thank you

Dear Nicoletta,

thanks for reporting.

We confirm the issue and we suspect that it was due to a recent version deployment of the Portal.
The issue has been solved, and you should be able to resume your work on GEP.
Let us know.

Please accept our apologies for any inconvenience it might have caused.

Best regards
Hervé