By Tim Ahern, Director of Data Services, IRIS A short introduction to the IRIS Data Management System Data Holdings, Data Organization, and Data Access

FDSN Backbone Network 200 stations currently Plans to increase in size to 300 Focus on real time data sharing FDSN Archive for Continuous Data at the IRIS DMC

DMCUofWASL DCCIDA DCC KZNet Almaty Data QA Network Ops Data QA The IRIS Data Management System Data Curation & Distribution

DMC GSN PASSCAL US Regional Networks Non-FDSN Networks FDSN USArray PBOSAFOD EarthScope IRIS Data Sources

More than 16,152 seismic stations from >250 networks and 500 temporary deployments have data available through the IRIS DMC

2,268 stations telemetered in real time from 98 different networks

2,361 Stations in SE Asia

201 SE Asian Stations come in real time to the IRIS DMC

Seismological Broadband Seismometers Strong Motion Buildings Structures Free Field Geophones Hydrophones Meteorological Wind Speed Wind Direction Temperature Humidity Rain Gauge Solar Radiaton Insolation/Pyranometer Microbarograph Relative/Absolute Infrasound microphones Geophysical Magnetotelluric Magnetometer Electric Field Strainmeter dilatational tensor Tidal Pendulum Gravimeter conventional superconducting Tiltmeter Creep Meters Geophysical Magnetotelluric Magnetometer Electric Field Strainmeter dilatational tensor Tidal Pendulum Gravimeter conventional superconducting Tiltmeter Creep Meters Water Column Water Current Depth Temperature Water Level Water Column Water Current Depth Temperature Water Level Types of Sensor Data IRIS manages

IRIS Archive at 152 terabytes and growing at 27 terabytes per year

Data Request Tools at the IRIS DMC

Request Methods

Routes user requests between data centers Wraps normal Data Center operations within an application layer Coordinates delivery of information back to a user Peer based system Any NetDC node can act as a hub data center Or FDSN.ORG can be used IRIS DMC USA ORFEUS Netherlands CNSN Canada PACIFIC 21 Japan MedNet Italy GEOSCOPE France NCEDC USA NetDC Request SCEDC USA FDSN.ORG Networking Data Centers by

BUD Buffer of Uniform Data DHISeedLink AntelopeEarthworm SeisGram 2K VASESODEMMjWeed Seiscomp3DHI2 mseed Real Time Data Flow from DMC

Most of the 152 terabytes are in miniSEED format Metadata has been provided in dataless SEED format The huge holdings are consistent and complete due to adherence to FDSN standards Data from >250 permanent seismic networks ~500 temporary deployments 16,152 stations 2,249 stations in real time as of 2011 The IRIS Data Management Center

Metadata workshops Annual cycle moving from SE Asia, Africa Middle East, Latin America Italy, Brazil, Malaysia, Egypt, Brazil, Thailand Regional Exchange of Earthquake Data (REED) Focus on solving data communication issues Station to data center Data center to Internet Past and current efforts Central Asia SW Pacific Tsunami Task Group Africa Support for SeisComp-3 Configuration GUI, installation simplification, StationXML Three International Activities Supported by IRIS DMS

The IRIS DMS is available to all seismologists at the same priority level All data are open There is no charge for any of IRIS services Only one piece of software has limited distribution Antelope only available to Full IRIS Members SAC available to almost all seismologists A Global Resource

Thanks for your attention