We are pleased to announce a 2-day MSNoise workshop on Saturday 12 and Sunday 13 August 2017, the weekend before IAVCEI 2017 in Portland!
The aim of this workshop is to demonstrate the powers and limitations of using ambient seismic noise for seismo-volcanological studies using continuous data, for example using ambient seismic noise cross-correlation for computing dv/v, surface wave tomography or microseismic activity tracking. The MSNoise package will be introduced and then used by participants on provided demo data (from Piton de la Fournaise volcano). New developments to MSNoise will be presented too: an easier configuration interface, an improved pluggability and the demonstration of external plugins currently in development (e.g. Quality Control, Power Spectral Density, TOMO or SARA). In the framework of this conference, we will particularly introduce the Seismic Amplitude Ratio Analysis (SARA) that was specifically designed to track magma migration at volcanoes using seismic data (e.g., Taisne et al., 2011).
During the first session, we will make sure everyone has the right software and provide a refresher course on Python/ObsPy. The second session will contain review presentations related to “the seismic interferometry” followed by a practical using MSNoise. The last session will specifically cover the Seimic Amplitude Ratio location technique and the Ambient noise-based Tomography, before a MSNoise hacking session.
Day 1:
- 09.30 – 10.00: Welcome
- 10.00 – 11.00: Installation “party”
- 11.00 – 12.30: Refresher course on Python/ObsPy (version 1.0 & new features)
- 12.30 – 13.30: Lunch (not provided)
- 13.30 – 15.30: Introduction on Noise – What is Noise? How do we use it? Cross-Correlation? dv/v? – MSNoise general introduction
- 15.30 – 18.00: MSNoise practical
Day 2:
- 09.30 – 10.00: Welcome
- 10.00 – 12.00: Noise-based studies (SARA, TOMO)
- 13.30 – 16.00: Advanced MSNoise Practical (Jupyter notebooks, API, etc)
Because of high organisational costs, we can’t afford to organise this workshop for free. We have fixed the fee to 230 USD per person. Payments will be done online directly while registering for the IAVCEI meeting.
To ensure the quality of the experience for everyone, we will not accept more than 30 participants. Each participant is required to have a sufficiently decent (and fast!) laptop with software requirements installed beforehand (instructions will follow). Participants are not expected to be Python experts at all, but having a little experience in programming will be useful.
Information on MSNoise: MSNoise is the first complete software package for extracting signal from noise. MSNoise is a fully-integrated solution that automatically scans data archives and determines which jobs need to be done whenever the scheduled task is executed (http://www.msnoise.org).
Registration: Via the IAVCEI meeting registration page.
Worth reading: Lecocq, Thomas, Corentin Caudron, et Florent Brenguier (2014), MSNoise, a Python Package for Monitoring Seismic Velocity Changes Using Ambient Seismic Noise, Seismological Research Letters, 85(3), 715‑726, doi:10.1785/0220130073. http://srl.geoscienceworld.org/content/85/3/715.full And the release notes of the latest versions (please read 1.4 and 1.5).
