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Overview of The COSMOS/PEER-LL Geotechnical Virtual Data Center (GVDC)
and Data Provider Perspectives
Carl Stepp, COSMOS (PI)
Jean Benoit, UNH
John Bobbit, POSC
Dan Ponti, USGS
Charles Real, CGS
Jennifer Swift, USC
Loren Turner, Caltrans
Mindy Squibb, UCSB
CUS Borehole
Geo-observatory Workshop
May 3-4, 2007
Fedex Institute of TechnologyUniversity of Memphis
Overview
Motivation for new data management tools Project 2L01 Project 2L02 Project 2L03 Data Provider tasks and perspectives
Geotechnical Data Management
Many organizations are paper-based. Need more efficient information systems.
Vision: Single Agency
Data is collected in the field
electronically
Design Engineer
Data files are transferred to a
central repositoryOther Staff
Drafter
Vision: Multiple Agencies
Partner agencies benefit through data exchange.
Design Engineer
Private Firms
COSMOS GVDC
Data Provider Motivation
USGS - FOQUS-LA Corehole and Well Database Support geologic and ground water modeling projects supported by USGS in the
Los Angeles region Developed a repository for detailed core and pore fluid chemical analyses
conducted by USGS using in-house developed FileMaker-based core logging system
Desire centralized access to broad range of subsurface information from various sources – GVDC connects to this database
Caltrans - Cone Penetration Test (CPT) Archive Caltrans has a mobile testing unit that is deployed statewide, approximately 350
soundings per year Digital archives currently contain 10 years of data (>3300 records) Developed internal Online “CPT Data Viewer” – GVDC can connect to database
CGS - Geotechnical Database – SHMA Mandate Support Designation of Regulatory Seismic Hazard Zones per year, for Analysis of
Ground Shaking Hazard and Earthquake-Induced Ground Failures Update/Revise Seismic Hazard Zones Developed SHMP WebMap site – GVDC can connect to this database
Background of “2L” Projects
1992 NSF/FHWA sponsors the National Geotechnical Experiment Sites.
1996 The ROSRINE project pioneers web dissemination of geotechnical data.
1998 USC Workshop highlights growing need for geotechnical data management and exchange.
1999 PEER Lifelines initiates Project 2L01.
2001 Project 2L01 – Held a workshop to assess user needs and build consensus to develop a Geotechnical Virtual Data Center (GVDC).
2004 Project 2L02 – Unveiled a pilot GVDC that demonstrated the feasibility of the technology.
2005 Project 2L03 – Initiated.
Project 2L01 – Planning for a Geotechnical Virtual Data Center
Flexible and extensible Translation-based system Central index, single portal to data – not a
central repository Data quality Data exchange standards Control of data and attribution Security and liability
Project 2L03 – Project Objective
Task 1: Modify the server-side and client-side COSMOS/PEER-LL Pilot GVDC system architecture, and upgrade the system server to support a larger user-base.
– Replace MySQL Database with PostgreSQL– Server and Client Side Exchange Protocols – GML compliant schema– Server Side Data Mapping and Translator Apps– Server Side Data Previewers – Server Side Front End Interactive Map– Search Results and Data Download code– Java-based previewer for seismic velocity logs and suspension
velocity logs– Hardware upgrade and redundancy– Documentation, Users Manual and Final Report
Project 2L03 – Project Objective
Task 2: Expansion of the Data Dictionary Standard to include data standards for Seismic velocity: PS-Logging, Downhole Receiver,
Crosshole velocity data, SASW, Generic structure for other downlhole logs
Laboratory: Atterberg, Grain size, Unit Weight, Specific Gravity, Direct Shear, Triaxial, Consolidation, Moisture, Unconfined Compression, Falling Head/Constant Head Permeability
Task 3: Development of an Operation and Maintenance Plan
Project 2L03 – Expanded Task 1
Support Data Interchange for Geotechnical and Geoenvironmental Specialists (DIGGS) - GML compliant schema
Upgrade the GVDC system to ease data provider participation, to support a larger user-base:
Replace MySQL Database with PostgreSQLRe-design Server and Client Side Exchange (Harvesting);
Develop “MetaDIGGS” applicationDevelop new Data Mapping and Translator applicationsUpdate Front End Interactive Map, Search Results and
Data Download code
Project 2L03 – Expanded Task 2
Upgrade existing data previewersSupport Data Interchange for Geotechnical and
Geoenvironmental Specialists (DIGGS)Modularize to facilitate future updatesRevise CPT data previewerCreate a COSMOS Geotechnical Data XML
Schema-to-DIGGS translator Updating original concept of geophysical data
previewer, to a modular curve previewer
Project 2L03 – Expanded Task 3
Collaborative effort with the Federal Highway Administration (FHWA) and the Association of Geotechnical & Geoenvironmental Specialists (AGS): 2L03 participation in Transportation Pooled Fund project
recently launched by DOTs; led by Ohio DOT and FHWA Funding: $650k over 3 years Develop consensus data interchange format, “DIGGS,” based
on AGS and COSMOS-PEER-LL formats Potential for broad national and international adoption of
standard COSMOS/PEER-LL GVDC will implement DIGGS (Task 1)
COSMOS Geotechnical
XML Files
Current GVDC Server
Database
Current Data Provider Server
Flat Files
Excel Files
OAIB Config
File
Custom-coded Translator
OAIB Application
Harvester
Data Sources
Open Archives-in-a-Box
Java Application + OAI
GVDC Database
GVDC Website- Map and Document Searches- Administrative Tools
ArcIMS + ASP + JScript
MySQL DB
Data Set Specific - Java, VB, etc.
Updated GVDC Server
Database
Updated Data Provider Server
DIGGSml Files
Flat Files
Excel Files
MetaDIGGS File
DIGGS Generator
MetaDIGGS Application
Harvester
Data Sources
Java ApplicationMetaDIGGS Invoker
Transform
Java Wrapper
Transform
Java Wrapper
Transform
Java Wrapper
GVDC Database
GVDC Website- Map and Document Searches-Administrative Tools-Draft Google Maps Interface -Connectivity to COSMOS Strong Motion Data Center
ArcIMS + ASP + JScript
PostgreSQL DB(MetaDIGGS data)
To Become a GVDC Data Provider
Tasks Collect and maintain geotechnical and/or geophysical data, and
required associated metadata Assist in custom data mapping and translator development – Data
Provider’s native format to DIGGS XML Schema Install open source application to allow the GVDC to harvest the
search parameter data from the native database Develop Privacy and Data Use Policies for each Data Provider
New 2L03 Tasks To Facilitate Data Provider’s Role
Improvement of GVDC Allow hole coordinates to be in any standard coordinate system View XML as simple tables, in popups Allow null data DIGGS Data Mapping and Translator Applications Improve GVDC Connection (harvesting)
Evaluate revising GVDC Front End Mapping application (ERSI ArcIMS) to Open Source Software (Google Maps)
Anticipated completion of all 2L03 Tasks: December 2007
Additional Efforts
Establish Connectivity between the COSMOS Strong Motion VDC and Geotechnical VDCOnline Data Mapping• User searching for both Strong Motion and Geotechnical data only
has to conduct one search
• The existing flow and functionality of both data centers are maintained
• Provides Google Maps (separate interface) functionality for viewing both types of data
• Funded by USC WiSE (Women in Science and Engineering) Program
• Anticipated project completion date: September 2007 Revise existing Borehole Previewer – same modular
technology as new curve previewer Gather feedback on GVDC updates, previewers and VDC-
GVDC connectivity Seek long-term funding opportunities
Professor Ralph J. Archuleta
Associate Research Seismologist Jamison Steidl
IT Analyst Mindy Squibb
Institute for Crustal Studies, University of California, Santa Barbara
COSMOS Strong-Motion Virtual Data Centerhttp://db.cosmos-eq.org
Sponsors and Partners