ESM Topography Web-Service

The ESM Topography Web-Service provides the slope angle and the related topographic category according to the Italian seismic code (NTC18). Moreover, it provides a value of the share-wave velocity profile in the upper 30 m (VS30), obtained through a correlation with the slope angle (Wald and Allen, 2007). The Italian territory is classified based on the automatic procedure described in Mascandola et al. (2021). In this case, we consider the TinItaly DEM (Tarquini et al., 2012) with a horizontal resolution of 10 m and a vertical accuracy between 0.8 and 6 m. The European zone is classified by applying the automatic procedure of Mascandola et al. (2021) to the SRTM DEM (90 m) of each state.
The ESM Topography Web-Service can be adopted for a specific seismic station or for any other site on the Italian and European territory (see Feature Notes).

A complete list of supported options and usage examples is available in the query-options webpage.

Available URLs

• query
• application.wadl
• version

Feature Notes

• The output is provided in JSON format containing both the list of the input options and the output values.
• Currently, results are provided for the following country: Italy, Albania, Austria, Croatia, France, Germany, Greece, Montenegro, Portugal, Czech Republic, Romania, Slovenia, Spain, Switzerland, Turkey.

References

• NTC18 - Norme Tecniche per le Costruzioni. Ministero delle Infrastrutture e dei Trasporti. Aggiornamento delle Norme Tecniche per le Costruzioni. Part 3.2.2: Categorie di sottosuolo e condizioni topografiche, Gazzetta Ufficiale n. 42 del 20 febbraio 2018 (in Italian)
• Mascandola C., Luzi L., Felicetta C., Pacor F. (2021) A GIS procedure for the topographic classification of Italy, according to the seismic code provisions.Soil Dynamics and Earthquake Engineering
• Wald D.J., Allen T.I. (2007) Topographic slope as a proxy for seismic site conditions and amplification. Bulletin of the Seismological Society of America, 97-5: 1379-1395

Backend Python software used by this web service is developed and maintained by Felicetta C. and Russo E.