ByTim 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

DMC

UofW

ASL DCC

IDA DCC KZNetAlmaty

Data QANetwork Ops

Data QA

The IRIS Data Management System

Data Curation&

Distribution

DMC

GSN

PASSCAL

US Regional Networks

Non-FDSNNetworks

FDSN

USArray

PBO

SAFOD

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 timefrom 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 DMCUSA

ORFEUSNetherlands

CNSNCanada

PACIFIC 21Japan

MedNetItaly

GEOSCOPEFrance

NCEDCUSA

NetDCRequest

SCEDCUSA

FDSN.ORGFDSN.ORG

Networking Data Centers by Email

BUDBuffer of Uniform Data

DHISeedLink

Antelope EarthwormSeisGram

2KVASE SOD EMMjWeed

Seiscomp3 DHI2mseed

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