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Marine Geoscience Seismic Data System Access for education and research Field Data Center (LDEO) Marine Geoscience Seismic Data System Access for education and research Field Data Center (LDEO) Marine Seismic Data Center (UTIG) April 2007

Scope and Goals • preserve U. S. academic digital seismic reflection data and supporting Scope and Goals • preserve U. S. academic digital seismic reflection data and supporting information • help investigators share project data and products • help define and unify seismic-related metadata April 2007

Seismic System Components • Field Seismic Data Center (LDEO) – serves digital field data Seismic System Components • Field Seismic Data Center (LDEO) – serves digital field data • R/V Ewing 57 cruises 1990 -2005 • R/V Langseth (operational September, 2007) • Marine Seismic Data Center (UTIG) – serves digital processed products • stacks, migrations, SCS, UTIG OBS, 3 D, chirp, etc. – serves older (mostly UTIG) field data from 85 cruises – serves other types of seismic data not otherwise being preserved April 2007

Marine Seismic Data Center (MSDC) • Collect and serve – – acquisition and processing Marine Seismic Data Center (MSDC) • Collect and serve – – acquisition and processing info SEG-Y binary data create trace geographic positions, line-by-line create annotated raster images Cruise-organized metadata April 2007

MSDC Metadata Follow FGDC and developing ontologies for marine and seismic data. Developing interop MSDC Metadata Follow FGDC and developing ontologies for marine and seismic data. Developing interop with MGDS (with REST) tests metadata structure and convergence. April 2007

MSDC Acquiring Metadata and Data • Reluctance of some investigators to contribute processed data MSDC Acquiring Metadata and Data • Reluctance of some investigators to contribute processed data • Addressed these concerns by: – pushing citation information with downloads – sharing usage information with data providers – allowing for access restriction • though metadata is all visible • ultimate arbitrator is project funding agency April 2007

MSDC Cumulative Contents Processed SEGY Files Field SEGY Files 2001 1, 193 14, 697 MSDC Cumulative Contents Processed SEGY Files Field SEGY Files 2001 1, 193 14, 697 2002 4, 798 16, 028 2003 5, 171 16, 049 2004 6, 007 16, 148 2005 6, 966 16, 149 Year ending Cruises 2006 8, 109 17, 068 Apr 2007 April 2007 161 173 8, 383 17, 068

MSDC Registration • Countries (62): – – 40% U. S. 6% United Kingdom 4% MSDC Registration • Countries (62): – – 40% U. S. 6% United Kingdom 4% Canada, India 3% Germany, Australia, Brazil • Enterprise: – – April 2007 71% Academic & Government 20% Commercial 7% Personal 2% Undeclared

MSDC User Activity Year ending New registered users 2001 25+ 2002 65+ 2003 130 MSDC User Activity Year ending New registered users 2001 25+ 2002 65+ 2003 130 1, 116 2004 116 2, 388 2005 138 4, 507 2006 160 4, 962 Apr 2007 76 (+41) 3, 030 File transfers* *=SEGY, navigation and large images +estimated April 2007

MSDC Tool Set • view and select SEG-Y, images, navigation - map-based search - MSDC Tool Set • view and select SEG-Y, images, navigation - map-based search - metadata-based search - Google Earth formatted files • external access to metadata - xml metadata service in development - map services support (www. ig. utexas. edu: 8080/geoserver/wms) • custom seismic images • automated download cart April 2007

Custom Images • create custom images with window selection, aspect ratio, filtering and amplitude Custom Images • create custom images with window selection, aspect ratio, filtering and amplitude control. • produces gif and pdf files. April 2007

Selection and Downloading • • • April 2007 Selection is done from maps, lists Selection and Downloading • • • April 2007 Selection is done from maps, lists and captions. Automated system with intervention only when restricted data sets are requested. Contributors are supplied monthly with information on downloads to help overcome reluctance to contribute and share data.

Comprehensive Discovery? April 2007 Comprehensive Discovery? April 2007

MARGINS: Costa Rica Discovery April 2007 MARGINS: Costa Rica Discovery April 2007

MARGINS: Costa Rica Evaluation April 2007 MARGINS: Costa Rica Evaluation April 2007

MARGINS: Costa Rica Discovery April 2007 MARGINS: Costa Rica Discovery April 2007

Data Discovery • creating comprehensive catalogs for users will: – simplify search – map-based Data Discovery • creating comprehensive catalogs for users will: – simplify search – map-based discovery more valuable to users for some data, such as seismics • both catalogs and maps provide paths to more information and data • challenge--the comprehensive part – for example, U. S. seismic data • just in the U. S. there are (more than) 6 institutions with seismic data • because funding and individual and institutional priorities vary widely, some will never participate – efficient mapping method issues • WMS/WFS large files, slow (unless windowed or decimated) • Google Earth virtual globe (maybe, but commercial product limitations) – well-known educational and cross-generational browser – data provider controls information in the placemark, has complete ‘ownership’ control April 2007