1 earth system modeling framework documenting and comparing models using earth system curator sylvia...
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Earth System Modeling Framework
Documenting and comparing models using Earth System Curator
Sylvia Murphy: [email protected] Chastang: [email protected]
http://www.esmf.ucar.edu
http://www.earthsystemcurator.org/
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Introduction and Motivation
The Earth System Curator project, in partnership with the Earth System Grid (EG), is building a web portal that links model components and data together via metadata.
The portal enables components, models, simulations, and data to be searched, browsed, downloaded, and compared.
This is especially useful for Model Intercomparison Projects (MIPS) and Model Component Intercomparison Projects.
The portal is planned for use in IPCC AR5 as part of ESG. An prototype will be used to support an NCAR summer 2008
colloquium on the comparison of atmospheric dynamical cores.
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ESMF to Curator Metadata Workflow
ESMF enables self-describing model components
XML File XML validated, converted to Java Objects and uploaded into ESG Database
Models export metadata as part of the global attributes of the history files
Metadata harvested as part of the publication process and placed in Sesame store
ESG database harvested and placed into Sesame store
Metadata presented via ESG search and trackback pages
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ESMF Metadata
Metadata encoded using the Attribute class In ESMF v3.1.1, users will be able to create standard Attribute
packets, for example for Field: Long_name Units Short_name
Field and Array metadata can be aggregated into FieldBundle, ArrayBundle, and State metadata
Component Attributes done by the end of the summer Current output is a tab-delimited text file. Future plans include
validatable XML
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ESG Faceted Search
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Example Trackback Pages
Model Distribution: http://cdp.ucar.edu:28080/query/queryResultsSync.htm?id=esg%3amod
el_ccsm_3
Scientific Properties: http://cdp.ucar.edu:28080/query/queryResultsSync.htm?id=esg
%3amodelcomponent_gef_dycore
Component Hierarchy: http://cdp.ucar.edu:28080/query/queryResultsSync.htm?id=esg
%3amodel_geos_5
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Component ComparisonTable
Select model components Select criteria Table generated dynamically Eventually selections can be placed in a user’s saved
workspace
http://cdp.ucar.edu:28080/query/modelComparison.htm
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ASP 2008 Colloquium: Numerical Techniques for Global Atmospheric
Models 11 modeling groups with 13 atmospheric dycore components Running 22 test cases at up to 5 resolutions Component comparison table Automated upload of simulation data, publishing, and
comparison Current PCMDI tables are static, hard-coded, non-searchable
Data search and browse via ESG Gateway Presentation on use of metadata for MIPs for student attendees
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Questions?
http://www.esmf.ucar.edu