WG1- Workflow integration of data and computing resources

 Working Group leader: Heiner Igel



Imaging requires high­ quality data observed in dense seismic arrays and/or local/global seismic networks. It is important to note that with large­ scale projects like NERIES (structuring European seismic networks), USArray, VEBSN and many others, massive quantities of seismic waveform data are becoming available.

This implies that data mining becomes an issue for high­performance computing systems. The last decade has seen a paradigm shift from seismic event­based observations to permanent observations of ground motions including oceanic­ and atmospherically­driven background noise (micro­seismicity and seismic hum).

The analysis of noise has led to a new methodology to image the Earth’s interior without the need for earthquake sources. Event­based and virtual source data – if processed properly – may change our view of the Earth.

The seismic networks are becoming so dense that – at least in principle – high­resolution imaging of the Earth’s interior and of seismic sources is becoming possible at all scales.

In TIDES research topics, computational simulations will play a leading role in hypothesis testing and data modelling. In addition to the existing links between the TIDES participants and their local supercomputing centres, TIDES will be associated with the European supercomputer grid infrastructure through VERCE and EPOS.