Principle Investigator : Eric Guilyardi IPSL/Reading

Principle Investigator : Eric Guilyardi IPSL/Reading

Lois Steenman-Clark NCAS, University of Reading

Leader of METAFOR Work Package 2

GO-ESSPSeattle 2008

Facts and FiguresMETAFOR Common Metadata for Climate

Modelling Digital Repositories

EU FP7 e-infrastructures project11 partnersTotal budget of 2.2M€Starting in March 2008, duration 3 years

The principle aim of METAFOR is to develop a Common Information Model (CIM) to describe in a standard way the climate data as well as the numerical models that produce this data.

PartnersNCAS, University of Reading, UK (Coordinator)

BADC, Science and Technology Facilities Council, UK

CERFACS, France

Models and Data, Max Planck Institute for Meteorology, Germany

Institute Pierre-Simon Laplace, CNRS, France

University of Manchester, UK

Met Office, UK

Administratia Nationala de Meterologie, Romania

Météo France, CNRM, France

CLIMPACT, France

CICS, Princeton University, USA

Vision of An Information Model that is common for all stages

of both production and the use of climate model data.

Tools that populate, create, manipulate, convert and exploit this Common Information Model to allow climate models and climate model data to be inter-comparable and sharable.

CIMCommon Information Modelbased on current, emerging

and new metadata standards

(CIM - Common or Climate Information Model ?)

has 286 person months of effort

CIMCommon Information Model

WP 2 WP 6CIM creation tools

WP 4Data Portals

WP 3Verification

WP 5CIM exploitation tools

WP 1

Admin Eric Guilyardi, NCAS

14

WP2 CIM Lois Steenman-Clark, NCAS

101

WP 3

Verification Laurent Fairhead, IPSL

47

WP 4

Portals Bryan Lawrence, BADC

32

WP 5

Exploitation tools

Allyn Treshansky, UKMO

41

WP6 CIM creation tools

Michael Lautenschlager, MPI

39

WP7 Dissemination

Eric Guilyardi, NCAS

12

metafor is not just about the metadata but also about

- being able to gather or create the metadata- building diverse repositories- enabling and designing tools to exploit the metadata

Common Metadata for Climate Modelling Digital Repositories

GO-ESSPSeattle 2008

Common Metadata for Climate Modelling Digital Repositories

GO-ESSPSeattle 2008

Conceptual Model

Climate Modelling

An activity using software and data creating data to be housed in a repository.

UML

Application Model

Application Model

XSD

RDF

Instance @ BADCInstance @ IPSL

Instance @ PCMDI

XML

An essential aim of metafor is that the conceptual model is not changed by the manor in which it is used or applied.

Common Metadata for Climate Modelling Digital Repositories

GO-ESSPSeattle 2008The information modelling of the climate modelling process requires

• a degree of commonality• with community agreement to achieve this• governance mechanisms to develop and maintain this• extensions for local use or translations to other systems

The ‘fried egg’ implementation of the information model

common

community

UML package diagram

Activity Software Data

grid

quality

Re-usable entities

With a clear understanding of package descriptionsAn Activity is an abstract package of project, ensemble, campaign, investigation.Data in all its guises and usage within the climate modelling process.Software which includes all parts of the activity that takes place on a computer.Grid ie gridspecQuality measures that could be applied to activities, software or data.Re-usable entities for example responsible person, defined within ISO.

and the aim to achieve• a separation of concerns• encouragement of interested parties to participate in discussion• ensuring a degree of governance• a mechanism for separate development

UML class diagram+ dictionary

GO-ESSPSeattle 2008

Why is separate development necessary? GO-ESSPSeattle 2008

Vn 1

Vn 2

Vn 3

Vn 1

Vn 2

Vn 3

Package A

For climate modelling

- the UML associations are complex- it is a diverse community- requirements evolve- tools exploiting the CIM take time and effort to develop

- metafor, Curator, AR5 need systems soon

Oct 2007 Oct 2008 Oct 2009 Oct 2010

Curator

AR5

for AR5

• CIM based data portals design and implementation

• CIM to encompass AR5 metadata requirements Access to CIM tools and services

• CIM verification part of AR5 quality control

• CIM tools for ingestion tools made available to modellers

• CIM exploitation tools

GO-ESSPSeattle 2008

metafor

metafor

Common Metadata for Climate Modelling Digital Repositories

Issues for discussion

metafor timelines are tight, it is a 3 year project that wants to provide a community CIM and tools that survive and evolve beyond this project

governance is slow and difficult

there is the challenge of achieving generic community acceptance

GO-ESSPSeattle 2008