14th Munich Earth Skience School

www.berghotel-sudelfeld.de

3 – 8 March, 2024

The special topic will be volcano seismology. As usual the winterschool starts with updates and news on the ObsPy Python library (www.obspy.org). The lecturers will train aspects of volcano seismology including the use of 6C observations (rotations and translations), array methods, tremor analysis, polarization analysis, tilt correction for long-period signals, volcano hazards and early warning methods, source inversion, and others). Participants will have the opportunity to present their own research.

Lecturers: Chris Bean (DIAS, Ireland), Thomas Lecocq, Raphael de Plaen (ROB Brussels), Joachim Wassermann (LMU Munich), Glenn Thompson (USF, Florida), Eva Eibl (Univ. Potsdam, Germany), Felix Bernauer, Fabian Lindner (LMU Munich), Adam Ringler (USGS, Albuquerque)

View of the area around Mt. Tolbachik volcano, Kamchatka (Photo: H. Igel)

Organization and contact: Heiner Igel (LMU Munich) and Thomas Lecocq (ROB Brussels).

Scientific Program:

	Morning 8-11	11-15	Afternoon 15-18	Evening
Su			Arrival of participants	Icebreaker
Mo	Workshop Welcome Igel News on  ObsPy, Python, Jupyter notebooks Wassermann & Megies Introduction to Volcano SeismologyMorphology of a volcanoSources of static/dynamic deformation & time scalesInstrumentation  Seismic Event types & classification Current source models for event typesWave propagation on volcanoesSource versus path effects Seismic imaging on volcanoes. Time lapse changes, and what they tell usMaterial failure on volcanoesBean	SKIING – SNOWBOARDING	Volcano-seismic monitoring toolsPrecursors and “hazard” signalsSeismic event catalogue generationRSAM, spectrogramsTremor and swarm alarmscross-correlation analysis of swarmslocating pyroclastic flows & laharsThompson	Late Night Special: Stories from volcanoesBean, Wassermann, Thompson, Eibl
Tu	MSNoise, volcano applications“Noise” contentInterferometryTravel time / velocity changes (MWCS, stretching, wavelet-based)Amplitude ratio, migration (SARA)Lecocq & Lindner		Polarization analysis of volcanic signalsSeismic data from Strokkur geyser at 30 m distance from sourceShort intro to the behaviour of the geyseroverview of data with Snuffler (short glimpse on the particle motion snuffling to show people where we are going)Look at particle motion in 3D using matplotlib: transition from P to Rayleigh waves6C on volcanoesIntroduction of what waves we see on which componentsSeismic data from LP, VT, tremor on EtnaPlotting seismogram and spectrogram of these 3 event typesEibl	Bogner Ski Night (“Fire and Ice”, and other ski movies)
We	Science talksDAS on volcanoes –Stutzmann Infrasound measurements on volcanoesRingler  Participant’s presentations		Free afternoon, parallel slalom, ski hut
Thu	Source inversion, Source trackingSource inversion of volcanic events/signals using 6C stations (calculating Green’s functions – problems and pitfalls) Array vs 6C tracking of “fast” moving sources (pyroclastic flows, lahars etc.)Wassermann		Advanced tools, operational in the future? Or just “forensic tools”?EQTransformerRandom Forest classifierCovseisnet (noise analysis, tremor location)Lecocq, Wassermann & De Plaen	Mulled Wine outside, Special Dinner
Fri	Tilt correction, long period motionsExamples from Kilauea & …. Bernauer Wrap up, loose endsAll		Participants leave