COSMOS VIRTUAL DATA CENTER:A Portal for Open Dissemination of

World-Wide Strong Motion Datahttp://db.cosmos-eq.org

Ralph Archuleta, Jamison Steidl, Mindy Squibb

Institute for Crustal Studies,

University of California, Santa Barbara

Searchable parameters are pulled from the original data files

Data files remain with the owners

COSMOS Virtual Data Center

Enhancements in 2003http://db.cosmos-eq.org

Database Expansion

Jan 2003 Dec 2003 % Increase

Earthquakes 320 394 23%

Stations 2328 2543 9%

Accelerograms 15,600 18,749 20%

Web Pages Viewed 2000-2003

Web Pages Viewed in 2003

Sources of Access: US only

Records (2003) Downloaded by Access to the COSMOS VDC

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USGS

ACoE

USBR

Utilities

Universities

Consortia

Private

Files Downloaded from Owner’s Repository

http://db.cosmos-eq.org

• multinational

• large data sets

• data owners control currency of data

COSMOS Strong-Motion Virtual Data Center

Files Downloaded from COSMOS Repository

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Canada Europe Turkey &Armenia

2003 Enhancementshttp://db.cosmos-eq.org

Data Sets: Jan: Alyeska (M 7.9) Mar: Big Bear City (M 5.4) May: Miyagi, Japan (M 7.0) Jun: more Big Bear City (M 5.4) Sep: Hokkaido, Japan (M 7.9) Oct: Guerrero Array, Mexico Dec: San Simeon (M 6.5)

2003 EnhancementsWeb New event Email notice Linear and log scale on spectra S-wave velocity for an additional 100 stations More station pages from CSMIP

Hardware Apple Xserve migration Apple G5 for development

Tools Cosmos converter

ISO compatibility Multiple output formats

2004 Enhancements

Faster and more secure server Overlaying UBC/IBC spectra on response spectra plots Increasing data for which response spectra is available ArcGIS mapping Data available in COSMOS format and ISO-compliant XML

format

CosmosConverter Tool

• Downloadable• AutoUpdating• Preview data• Export data as

• text• plot

• Export header • html

• Export both• xml• COSMOS format• SMC• SAC

Searchable parameters are pulled from the original data files

Data files remain with the owners

COSMOS Virtual Data Center

• Clickable Map• Earthquake List• Station List• Search Parameters

Search Options