Program

• General Introduction (15 mins)
• Basic Introduction to ObsPy (1.5-2 hours)
• ObsPy Data Analysis Exercise (0.5-1 hour)

Python!

• General purpose language
  (in contrast to many other tools used in science)
• Quick to learn, very concise and easy-to-read syntax
• One of the most used programming languages
• Free and Open Source, large scientific community
• Cross-platform: Runs everywhere.. (RaspberryPi, SuperMUC..)
• No need to compile, IPython interactive shell and notebook available
• "Batteries included" (debugging, http access, ...)
• Mature third party libraries (plotting, big data, ..)
• Easy to interact with existing C and Fortran code

Python!

• close connection to science, esp. seismology!
  Sir Bedevere:
...and that, my liege,
is how we know the Earth to be banana-shaped.
King Arthur:
This new learning amazes me, Sir Bedevere. Explain again
how sheep's bladders may be employed to prevent earthquakes.

What is ObsPy?

Provide complete Python framework to work with all types of seismological data

• read/write file format support
• waveforms (MiniSEED, SAC, GSE, SEISAN, SEG-Y, SEG2, Q, CSS, ...)
• station metadata (StationXML, dataless/full SEED, RESP, SACPZ)
• event metadata (QuakeML, NDK, NLLOC, ZMAP, CNV, MCHEDR)
• data center access (FDSN WS, ArcLink, SeedLink, Earthworm, NEIC, ..)
• unified object classes (Waveforms, Events, Stations)
• signal processing routines
• trimming, merging, tapering, rotating, resampling, interpolation, ...
• filtering, instrument correction, ...
• array analysis, CC routines, PPSD, event detection, TF misfits, ...

What is ObsPy?

What's the beauty of it?

• Runs on all Platforms
  • Windows, Mac, Linux, FreeBSD (Installers, Debian/Ubuntu repository, ...)
  • from RaspberryPi (35$) to SuperMUC (>150 Mio.$)
• Free and open source (LGPLv3)
• Community pages: GitHub, wiki, tutorials, gallery, installation instructions, ticket system, mailing list
• Well documented source code, auto-generated API docs
• Test-driven dev. (>1200 tests, 86% Test Coverage, Travis/AppVeyor CI)
• Reuses well established third-party code
• Python community: numpy, scipy, matplotlib, ...
• Seismo community: libmseed, evalresp, taup, GSE UTI, ...
• Python!

Do people actually use it?

Do people actually use it?

Do people actually use it?

• >350 people on users mailing list
• 88+32 scientific citations

Who's behind it?

• development started in 2008 in Munich
• ~3-5 core developers
• ~40 people from all around the world contributed
• 8000+ code commits
• 1000+ tickets and pull requests


• Contributions welcome!
• Send pull requests, open tickets, drop a mail on the mailing list, ...

Use cases! -- LASIF

Use Cases! -- LASIF

Use Cases! -- SeedLink plotter

• command line tool to display realtime waveform data acquired via seedlink
• either single "drum" plot or multi station plot

Use Cases! -- Instaseis

• instantaneous calculation and visualization of broadband seismograms from Green's function databases generated with AxiSEM

..and now for something completely different:
ObsPy Intro Hands-On

• download tar-gzipped obspy material (agenda website)
• extract it somewhere
  $ cd some/where/
$ tar -xf iris_earthscope_2015_obspy.tgz
• move into the folder it generates
  $ cd iris_earthscope_2015_obspy
• start ipython notebook
  $ ipython notebook