accelerometric station book
DESCRIPTION
Accelerometric Station Book. Stephanie Godey (EMSC) Reinoud Sleeman (KNMI/ORFEUS) NERA NA3 team: EMSC, KNMI, ETH, INGV, CNRS, METU Set up a unique and reliable international registry of strong motion stations. Create an accelerometric station repository - PowerPoint PPT PresentationTRANSCRIPT
ORFEUS coordination workshop, Nov 2012, Istanbul
Accelerometric Station Book
Stephanie Godey (EMSC)Reinoud Sleeman (KNMI/ORFEUS)
NERA NA3 team: EMSC, KNMI, ETH, INGV, CNRS, METU
Set up a unique and reliable international registry of strong motion stations
ORFEUS coordination workshop, Nov 2012, Istanbul
Goal
• Create an accelerometric station repository– Long term archive (international standards)– Up-to-date, accessible station information– International reference registry
• Increase use and processing of station recordings by the scientists and engineers community
• Ensure the sustainability of the data
ORFEUS coordination workshop, Nov 2012, Istanbul
Accelerometric Station Inventory – NA3 approach
•Up-to-date station information crucial and common both for RRSM and ESM
•Create a living, on-line and up-to-date inventory of all strong motion instruments in the greater European region
•Development, initial population, hosting and technical maintenance (of the registry database) will be done by EMSC, ODC, NERA NA3 partners and the various network operators responsible for ensuring up-to-date station information.
•Inventory will be accessible using a web browser and can (partly) be updated by network operators
ORFEUS coordination workshop, Nov 2012, Istanbul
Why is metadata important?
They are the Rosetta Stone - making it possible to decodeinformation well into the future.
Increases accessibility: “tell me where sites are in aregion”, or “which deployments were recording in a specific time frame”, or “what instruments operate in this region”, etc.
Carefully created metadata makes your waveform data valuable !
Carefully created, they create both short and long-term benefits by capturing “tribal knowledge” when it’s still available, like equipment (serial numbers), sample rates, gains, documenting an accurate history of ground motion. Remember: people forget !
ORFEUS coordination workshop, Nov 2012, Istanbul
Data Preservation is Important
EOS PolicyStatement
Earth and Space data are a world heritage. Properly documented and archived, they will help future scientists understand the system……..and taking proper care of such data is our responsibility and our obligation (for future generations) …….
ORFEUS coordination workshop, Nov 2012, Istanbul
Current global registries
International registry of network codes
Federation of Digital Seismograph Networks (FDSN)
Unique network codes (max 2 characters; SEED)
Broadband community
www.fdsn.org
International registry (IR) of station codes
Maintained by ISC / NEIC
Unique station codes (max 5 characters; SEED)
www.isc.ac.uk
ORFEUS coordination workshop, Nov 2012, Istanbul
Recent initiative: ORFEUS WG-1•FDSN and IR do not include instrument type or response information ORFEUS WG-1: Broad band metadata database (Josep Vila; GFU )
Initial population of database from dataless SEED (metadata)
ORFEUS coordination workshop, Nov 2012, Istanbul
Recent initiative: ORFEUS WG-1•FDSN and IR do not include instrument type or response information ORFEUS WG-1: Broad band metadata database (Josep Vila; GFU )
•Some remarks:
Initial population of database from dataless SEED (metadata)
Currently populated with BB stations (potentially in Europe about 1500 EIDA stations)
Network operator is responsible for correct, complete and up-to-date metadata information ( not experienced how easy this is to do)
DB populated with dataless SEED; additional fields to be filled in by operator - could serve as prototype for NA3 stationbook
Independent verification of metadata remains needed by (sophisticated) software
FSDN proposal for StationXML (most likely to be accepted in 2 weeks)
ORFEUS coordination workshop, Nov 2012, Istanbul
Additional (non-SEED) information interactively inserted by network operator
ORFEUS coordination workshop, Nov 2012, Istanbul
Presently no international accelerometric instrument repository
… but more than 3000 stations (est. 2008) stations during the NERIES project serving different needs and different communities (public, seismologists, engineers…)
ORFEUS coordination workshop, Nov 2012, Istanbul
Which metadata?Characterizing accelerometric station requires:
• Usual information, similar to a seismic station– Location– Response (history)– Sample rate :
• Site characterization – Geophysical description of the site– Geophysical site analysis type (borehole, noise array, H/V, etc)– Output of the site analysis (dispersion curves, traveltime
velocity, vs30)
• Station characterization– Morphology– Ownership– Photos …
Standard formats:- SEED (dataless)- FDSN Station XML (in review)
No standard formats !
Additional information for SM stations:
ORFEUS coordination workshop, Nov 2012, Istanbul
Which metadata?
Station metadata
Station inventory
Site characterization
Station characterization
Standard formats:- SEED (dataless)- FDSN Station XML (in review)
SC3 DB model
ORFEUS coordination workshop, Nov 2012, Istanbul
NERA NA3 initiatives
• Set up a unique and reliable international registry of accelerometric stations
• Merging earthquake monitoring metadata and earthquake engineering information
• Instrumental metadata via ‘authorized’ datacenters (EIDA)• View and update interface for network operators (station and site
characterization)• Open user access
ORFEUS coordination workshop, Nov 2012, Istanbul
Behind the scene
•Collaboration ODC+EMSC•Automatic update of EIDA real time accelerometric station information through SeisComp3 database•Manual update via web interface for other information and non real time stations
ORFEUS coordination workshop, Nov 2012, Istanbul
Viewing interface
Geoscope view interface
•Work in collaboration with Orfeus WP1 on broad band stations•Several national example to follow
ORFEUS coordination workshop, Nov 2012, Istanbul
Update interface
Itaca update interface
•Limited to network operators•Content responsibility to the operators
ORFEUS coordination workshop, Nov 2012, Istanbul
Operators
What does it bring you?
•Store your station information in a single repository•Enter international collaboration and data exchange•Maintain accurate information alive for the scientific community
Requirements
•Register your network to FDSN •Preferably register your stations to the ISSR•Instrument response information
ORFEUS coordination workshop, Nov 2012, Istanbul
Developments
•1,000 stations from NERA NA3 participants will be inserted in the database•Collaborations with USGS for common initiatives•Collaborations with working groups on site characterization (NERA JRA1)•Collaborations with other ongoing projects: Sigma
•We need your feedback and your approval !
ORFEUS coordination workshop, Nov 2012, Istanbul
latest SC3 DB(inc. PGA, PGV …)
site info, fault description (?)…
RRSM DB
SEED metadata inserted
through EIDA/ODC
(dataless SEED)
non-SEED metadata inserted
via EMSC webinterface
NA3 databases: population
Station Book @ EMSC(based on RRSM DB)
XML
XML
EMSC EQnotification;+ events from thepast.
waveforms(arclink, offline, NERIES NA5 waveforms ?) …. requires dataless SEED !
×
● SB stations without SEED metadata will not be populated into the RRSM DB @ ODC● Raw and processed event waveform data stored @ ODC; continuouus waveforms deleted after 6 months
wfpm
required:- FDSN network code- ISC station code
ORFEUS coordination workshop, Nov 2012, Istanbul
• metadata must be shared in standard format (dataless SEED, FDSN StationXML) which makes metadata “portable” amongs heterogeneous systems
• Whenever anything changes at a site, new metadata should be exchanged with archives and/or other networks using it.
•Functionally, we use “technical” metadata, in that it is used todescribe how the seismic system behaves, and limitedsoftware description (like compression, etc)
ORFEUS coordination workshop, Nov 2012, Istanbul
Recent initiative: ORFEUS WG-1•FDSN and IR do not include instrument type or response information ORFEUS WG-1: Broad band metadata database (Josep Vila; GFU )