Difference between revisions of "UCVM Workshop"

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[[UCVM]] is an software system for hosting and querying 3D velocity models. Currently, multiple California velocity models are supported in UCVM.
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[[UCVM]] is an software system for hosting and querying 3D velocity models. Multiple California velocity models can be accessed using the UCVM software, including both southern and northern california 3D models.
  
To support development of UCVM, we are holding "virtual" workshops, that means teleconferences, to discuss and plan both scientific and technical issues regarding its development.
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We are using phone-based teleconferences, we call workshops, to discuss and plan scientific and technical issues relating to the development of [[UCVM]]. Length of call is typically 90 minutes, with a target of one call per month. Next call is now scheduled:
  
== Workshop July 2011 ==
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*Date: Thursday, July 28, 2011
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*Time: 1:30 PM - 3:00 PM (Pacific Time)
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*[[UCVM Workshop July 2011]] (Workshop Handouts)
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*[[UCVM]] (Software Development)
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*[https://college.usc.edu/scecconnect Shared Desktop]
  
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== Upcoming UCVM Workshops ==
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*[[UCVM Workshop July 2011]]
  
UCVM Software Design
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== Past UCVM Workshops ==
- Framework for hosting multiple CVMs
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*[[UCVM Workshop May 2011]]
- Standardized query interface
 
- How UCVM supports queries for non-standard models (e.g. How does UCVM handle elevation query using CVM-S4 (no elevation model)
 
  
Selected standardized statewide properties including:
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== Presentation Material ==
- Topography
 
- Bathymetry
 
- Statewide Geotechnical layer from Vs30 and Wald Vs30 topography relationship
 
- Georeference standardization
 
  
Selected UCM Coverage Region:
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Power-point presentations:
- Discuss portability of UCVM other regions including Central US
 
  
Currently Supported Models
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* [http://earth.usc.edu/~patrices/presentations/scec_ucvm_sw_design.ppt UCVM S/W Design]
- CVM-S4
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* [http://earth.usc.edu/~patrices/presentations/scec_ucvm_tools.ppt UCVM-based Tools]
- CVM-SI
 
- CVM-H 11.2
 
- CVM-H 6.3
 
- CenCal USGS
 
- Graves Northern Cal
 
- Lin Thurber statewide
 
  
Requirements for Hosted Models
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== Related Entries ==
- query interface
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*[[IDV]]
- projection definition
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*[[UCVM]]
 
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*[[CVM-H]]
Options for storing hosted CVMS
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*[[CVM-S]]
- GTL etree
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*[[Community Velocity Model]]
- CVM-S4 objects
 
- CVM-H gocad
 
- Lin-Thurber tables
 
- Po Chen CVM-SI mesh
 
 
 
Support for HPC creation of Large Meshes by UCVM
 
- parallel query capabilities
 
- large mesh making capabilities
 
 
 
ETREE support
 
- Description of etree import and export by UCVM
 
 
 
 
 
CVM Differencing capabilities
 
- Example differences between CVM-S4 and CVM-SI
 
- Proposed differencing tools
 
- Other CVM differences of interest
 
 
 
CVM Evaluation System Design
 
- Evaluation using point sources
 
- Evaluation using large historical events
 
- Goodness of fit measures in use
 
- Proposed GOF measures to be used
 
 
 
Evaluation results for 3 events
 
- Evaluate sensitivity of current evaluation system using 3 events and 3 CVM’s
 
- Chino Hills,Gilroy, Oakland and CVM-H, CVM-S4, CenCal
 
 
 
 
 
== Workshop May 2011 ==
 
California State-wide Community Velocity Model (CVM) Development: a State-wide 3D Velocity Model for California
 
 
 
Workshop Date: Tuesday 10 May 2011
 
Workshop Time: 9:30am – 11:00am (90 minutes)
 
Agenda Version: 8 May 2011
 
 
 
1. We plan to hold two CVM development workshops via teleconference calls prior to the next SCEC Annual Meeting (which will be held Sept 11-14, 2011).
 
1.1. First CVM workshop to discuss and establish CVM development goals (10 May 2011)
 
1.2. Second CVM workshop to discuss CVM development plans (week of June 13, 2011)
 
 
 
2. Several trends are pushing SCEC towards development of state-wide models:
 
2.1. State-wide Earthquake Rupture Forecast (UCERF) development
 
2.2. CISN and ANSS
 
2.3. Operational Earthquake Forecasting
 
2.4. Simulation for large California regions
 
2.5. SCEC4 goals
 
2.6. Statewide wave propagation-based PSHA calculations (CyberShake)
 
 
 
3. SCEC context supporting development of state-wide CVM
 
3.1. SCEC’s long standing scientific goal of compatible, integrated, computational structural models to support seismic hazard computational models including fault stress models, dynamic rupture simulations, wave propagation models, earthquake simulators:
 
3.1.1.1. CVM
 
3.1.1.2. CFM
 
3.1.1.3. Block Model
 
3.1.1.4. Crustal Motion Model
 
3.2. UCERF2.0 development
 
3.3. UCERF3.0 development
 
3.4. Release of multiple southern California CVM’s (CVM-S4 and CVM-H 11.2)
 
3.5. Introduction of alternative Geotechnical layer models-based on Vs30
 
 
 
4. Review of CVM User Communities to be considered:
 
4.1. High frequency wave propagation simulations (>1Hz)
 
4.2. Low frequency wave propagation simulations (< 1Hz)
 
4.3. Dynamic rupture modeling
 
4.4. Seismic hazard PSHA calculations
 
4.5. Others to be considered?
 
 
 
5. Discussion of Capabilities of Proposed state-wide CVM
 
5.1. Region to be covered
 
5.2. What features will it have (GTL, bathymetry, topography)
 
5.3. What users will is support
 
5.4. Resolution
 
5.5. Expression of uncertainty
 
5.6. Arbitrary precision
 
5.7. Expression of maximum useful frequency or resolution
 
 
 
6. Model construction, implementation, and delivery
 
6.1. New model development
 
6.2. Combining or integrating best of existing models
 
6.3. Management of alternative models
 
6.4. Blending of existing models
 
6.5. Delivery of model to end-users
 
6.6. Delivery of model to model-developers
 
 
 
7. Evaluation of Candidate and Alternative Models
 
7.1. Proposed use of wave propagation simulations and comparison of seismograms to observations to evaluate alternative models
 
7.2. Description of existing SCEC CVM evaluation system (developed for CVM-H,CVM-S)
 
7.3. Additional capabilities needed in an automated testing system which can repeat the same simulation and same evaluation tests with alternative models
 
7.4. Selection of goodness of fit metrics
 
7.5. Selection of goodness reference earthquakes distributed around the state and associated observational datasets
 
7.6. Level of support by SCEC for alternative models
 
 
 
8. Review of existing models
 
8.1. CVM-S4 (Magistrale)
 
8.2. CVM-S4 3D inversion update (Chen)
 
8.3. CVM-H 11.2 (Shaw)
 
8.4. CVM-H-based Central California update (Tape)
 
8.5. USGS Central California Model (Aagaard)
 
8.6. Lin-Thurber state-wide model (Lin)
 
8.7. Hauksson model (Hauksson)
 
8.8. Graves Mendicino Model (Graves)
 
8.9. Thurber Northern California Model (Thurber)
 
8.10. Reno Nevada Model (Magistrale)
 
8.11. Las Vegas Nevada Model (Magistrale)
 
 
 
9. External Groups with CVM Development Tools, Interests, Capabilities
 
9.1. IRIS
 
9.2. USGS
 
9.3. Others?
 
 
 
10. Technical Development Approach
 
10.1. Development of CVM software:
 
10.2. UCVM software is intended to support statewide-CVM development.
 
10.3. Supports standardized interface that can access multiple underlying models
 
10.3.1. CVM-S4
 
10.3.2. CVM-H 11.2
 
10.3.3. USGS Central California Model
 
10.3.4. Lin-Thurber
 
10.3.5. 1D background models
 
10.4. Supports state-wide topography, bathymetry models
 
10.5. Supports application of state-wide geotechnical layer based on Wills/Wald Vs30
 
10.6. Supports creation and delivery of etree models
 
10.7. Supports query by depth and query by elevation
 
10.8. Supports creation of large meshes
 
 
 
10. Tools required for Model Development
 
10.1. Automated CVM evaluation capabilities using wave propagation simulations
 
10.2. Mesh construction
 
10.3. Combining alternative models (e.g. Lin-Thurber with CVM-H 11.2)
 
10.4. Mesh slices and profiles
 
10.5. Model volume visualization
 
10.6. Migration between existing model formats (USGS e-tree, Gocad voxels, CVM-S objects, Lin-Thurber tables)
 
 
 
11. Software development activities and priorities
 
11.1. Discussion of current UCVM capabilities
 
11.2. Discussion of software development priorities
 

Latest revision as of 16:38, 28 July 2011

UCVM is an software system for hosting and querying 3D velocity models. Multiple California velocity models can be accessed using the UCVM software, including both southern and northern california 3D models.

We are using phone-based teleconferences, we call workshops, to discuss and plan scientific and technical issues relating to the development of UCVM. Length of call is typically 90 minutes, with a target of one call per month. Next call is now scheduled:

Upcoming UCVM Workshops

Past UCVM Workshops

Presentation Material

Power-point presentations:

Related Entries