# obspy.io.seisan - SEISAN read support for ObsPy

The obspy.io.seisan package contains methods in order to read seismogram files in the SEISAN format.

copyright: | The ObsPy Development Team (devs@obspy.org)
license: | GNU Lesser General Public License, Version 3 (https://www.gnu.org/copyleft/lesser.html)

## Reading

Importing SEISAN files is done similar to reading any other waveform data format within ObsPy by using the `read()` method of the `obspy.core` module. Example seismogram files may be found at https://examples.obspy.org.

    >>> from obspy import read
    >>> st = read("/path/to/2001-01-13-1742-24S.KONO__004")
    >>> st
    <obspy.core.stream.Stream object at 0x...>
    >>> print(st)
    4 Trace(s) in Stream:
    .KONO.0.B0Z | 2001-01-13T17:45:01.999000Z - ... | 20.0 Hz, 6000 samples
    .KONO.0.L0Z | 2001-01-13T17:42:24.924000Z - ... | 1.0 Hz, 3542 samples
    .KONO.0.L0N | 2001-01-13T17:42:24.924000Z - ... | 1.0 Hz, 3542 samples
    .KONO.0.L0E | 2001-01-13T17:42:24.924000Z - ... | 1.0 Hz, 3542 samples

The file format will be determined automatically. Each trace (multiple channels are mapped to multiple traces) will have a stats attribute containing the usual information.

    >>> print(st[0].stats)
                 network:
                 station: KONO
                location: 0
                 channel: B0Z
               starttime: 2001-01-13T17:45:01.999000Z
                 endtime: 2001-01-13T17:50:01.949000Z
           sampling_rate: 20.0
                   delta: 0.05
                    npts: 6000
                   calib: 1.0
                 _format: SEISAN

The actual data is stored as numpy.ndarray in the data attribute of each trace.

    >>> print(st[0].data)
    [  464   492   519 ..., -7042 -6960 -6858]

## Modules

`core` | SEISAN bindings to ObsPy core module.

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)