Authors:
José Navarro
;
Danielly García
and
Michele Crosetto
Affiliation:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain
Keyword(s):
Active Deformation Areas, EGMS, Geoprocessing, Land Subsidence, Open-Source, WebGIS.
Abstract:
The European Ground Motion Service (EGMS) is already offering data on Persistent Scatterers (PS) throughout Europe, which will aid in analyzing ground deformation on a continental scale. However, to more fully comprehend ground motion processes, it is preferable to use Active Deformation Areas (ADA) instead of PS. The CTTC has been using its ADAfinder tool to generate ADAs since 2018. With the new availability of EGMS PS data for the entire continent, the CTTC is now working on producing ADAs for all of Europe and making them accessible to the public through a self-developed, in-house hosted, web-based map application. A former paper describes the initial steps taken to develop it. This work focuses on how the challenge of processing a huge amount of data has affected the design and implementation of the tools used in the data production workflow. Additionally, the manner in which the EGMS data is structured, providing data sets that spatially overlap, has resulted in a new problem:
overlapping ADAs. The approach to resolving this issue is also discussed in this paper. The result is an evolution of the initial concept where not only economic reasons but also considerations on automation and handling of large volumes of data have guided the design and implementation of the system.
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