ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Moment Tensor Catalog  (1)
  • metadata  (1)
  • provenance  (1)
  • 1
    Publication Date: 2021-01-11
    Description: The DARE e-science platform (http://project-dare.eu) offers innovative tools to ease scientific workflow development and execution exploiting efficient Cloud resources. It aims to enable on-demand numerical computations and analyses, fast large dataset handling, flexible and customisable workflow pipelines and complete provenance tracking. It also integrates available e-infrastructure services (e.g. EUDAT, EIDA) and can be linked to user developed interfaces. DARE is validated via two domain-specific pilots, one from the climate modelling community and one from the seismological research field. Focusing on the latter, the EPOS Use Case is driven by urgent issues and general user needs of solid Earth Science community, following developments and application standards in the computational seismology research society. This Use Case also benefits from the pioneering experience of previous European projects (e.g. VERCE, EPOS-IP) in this framework. We present here the development of a scientific workflow to perform a quick calculation of seismic source parameters after an earthquake. The workflow requirements include HPC calculations (on local-institutional or Cloud resources), fast data-intensive processing, provenance exploitation and seismic source inverse modelling tools. The DARE platform automatically conducts the required actions optimally mapped to computational resources, linking them together by managing intermediate data. It automatically deploys the necessary environment to perform on-demand transparent computations executing a dockerised version of the numerical simulation code on a Kubernetes cluster via a web API. Other API calls allow for remote, distributed execution of dispel4py workflows, used to describe the steps for data analysis and download of seismic recorded data via EIDA Research Infrastructure services. Well established scientific python codes, such as those for waveform misfit calculation and source inversion, are thus easily implemented in this flexible and modular structure, and executed at scale. Moreover, the pilot requirement of searching and reusing multiple simulations for the same earthquake strongly benefits from customisable management of metadata and lineage through the DARE platform exploiting the integration of S-ProvFlow with dispel4py.
    Description: Published
    Description: San Francisco, CA, USA
    Description: 3IT. Calcolo scientifico
    Keywords: e-Science platform ; scientific workflow ; provenance ; metadata ; cloud ; EPOS ; numerical simulations ; dispel4py
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2024-03-04
    Description: The Central Italy seismic sequence began on August 24th, 2016, and was marked by three mainshocks in two months culminated with the Mw 6.5, October 30th, 2016, event. Location, depth and prevalent normal faulting mechanisms indicate that the sequence originated in the shallow crust of the Apennine chain where the current extensional regime overprints contractional structures. Structural complexity plays a major role in fault segmentation and interaction in this region, with important consequences on seismic behavior and mechanics of earthquake faulting. This complexity is evidenced by the co-existence of fault planes with different focal mechanisms in the same area. Here we analyze the robustness of moment tensor solutions for the three mainshocks of the 2016-2017 Central Italy sequence. In particular, we study the effect of number and distribution of the inverted stations and employed wave speed model (1D and 3D) with the goal of providing more reliable estimates of the source parameters (strike, dip, rake and Mw) and corresponding uncertainties. The latter are estimated by performing a bootstrap analysis on hundreds of solutions computed by varying the distribution of stations for 1D and 3D velocity models. Moreover, we report on reviewed source geometries of the Central Italy sequence as retrieved by moment tensor analysis by integrating the actual TDMT revised catalogue (http://terremoti.ingv.it/tdmt) for M4+, with new updated solutions based on a new Italian 3D wave speed model. The realization of a complete moment tensor catalogue, in addition to the estimate of uncertainties associated to the computed focal planes and Mw for the three mainshocks, can contribute to explain the complexity of the seismogenic processes active in the Central Apennines and help in understanding the main features of this seismic sequence.
    Description: Published
    Description: San Francisco
    Description: OST4 Descrizione in tempo reale del terremoto, del maremoto, loro predicibilità e impatto
    Keywords: 2016-2017 Central Italy Seismic Sequence ; Uncertainty ; Moment Tensor Catalog
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...