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Revised GALEON 2 Action Plan

Version 3, changed by BenDomenico. 12/21/2007.   Show version history

GALEON 2 Action Plan

as of December 2007

Action Plan Outline

  1. Agree on high-level dataset categories
  2. Establish extensions to CF conventions for each dataset category
  3. Determine relationships to:
    • Unidata CDM Scientific Data Types
    • CSML Scientific Feature Types
    • Obs. & Meas. Sampling Features
  4. Map CF-netCDF categories to ISO 19123
  5. Establish metadata forms: CSML, ncML-G
  6. Experiment with CF-netCDF encoded coverages as payload for WCS, WFS, SOS

Divide (Labor) and Conquer

  • Coordinate individual efforts toward a whole greater than the sum of the parts
  • Each group focuses on areas of expertise
  • Work on tasks group has funding for
  • Stay aware of other groups’ efforts
  • Coordinate efforts wherever possible
  • Results of lessons learned from implementation and experimentation feeds into standard definition process

British Atmospheric Data Center: Scientific Feature Types / CSML

  • conceptual level mapping of CSML Scientific Feature Types to O&M and ISO 19123 coverages
  • broadening community engagement with CSML
  • CSML (GML) representation of metadata (and data in some cases) for CS community datasets
  • implementation (python) of and experimentation with minimal WCS needed to serve CS community datasets
  • [Note:]   Python client (to both WCS 1.0 and 1.1)  has been agreed to be adopted into OWSLib]
  • examination of alternative protocols (e.g., WFS) for serving CSML datasets
  • liaison with GML, WFS, and CS communities

U of Florence CNR/IMAA: Common Data Model, ncML-G, CS-W

  • Conceptual level mapping of CDM Scientific Data Types to ISO 19123 coverages
  • CF-netCDF conceptual and encoding level mapping of CDM Scientific Data Types
  • ncML-G (GML) representation of metadata (and data in some cases) for CDM/CF-netCDF community datasets
  • implementation (Java) of minimal WCS server and client needed for CDM data types
  • implementation (Java) of CS-W client and server that includes THREDDS catalog access
  • liaison to catalog standards and European data systems communities

George Mason University: NASA data / HDF-EOS / CS-W

  • serving NASA satellite data (swath data type)
  • implementation of WCS clients and servers for those datasets
  • liaison to HDF-EOS community
  • implementation of CS-W services for THREDDS catalogs
  • liaison to catalog standards development and implementation communities

Unidata: CDM Scientific Data Types / CF-netCDF

  • conceptual level mapping of CDM Scientific Data Types to ISO 19123 coverages
  • work to extend CF conventions to include CDM CDM Scientific Data Types
  • CF-netCDF encoding level mapping of CDM Scientific Data Types
  • implementation (Java) of  minimal WCS server as part of TDS (THREDDS Data Server) to serve CF-netCDF community datasets
  • harmonize TDS metadata with standards: CSML, ncML, CS-W
  • liaison to CF, Oceans (irregular grids, SWE), Hydrology (Observation Data Model), CS-W

SURA/DataFed: SWE / station obs / irregular grids

  • joining efforts to extend CF for station obs and irregular grids
  • mapping station obs and irregular grids to ISO 19123 standard coverages
  • mapping those ISO coverages to SWE O&M sampling feature types
  • liaison with air quality and coastal oceans communities
  • experimenting with connections among WCS, WFS, SOS data access
  • liaison with SWE efforts and Oceans IE

Additional Activities

These are GALEON-related activities that are more indirectly related to the revised goals of GALEON 2.

British Met Office

  • Provision of a proprietary WCS to test client interoperability (initially WCS 1.0, later WCS 1.0+) 
  • Evaluation of THREDDS Data Server (TDS) to provide access to Met Office data (internally), including the WCS interface 
  • Development of TDS IO Service Providers for two Met Office bespoke formats (PP format and Nimrod format) which would make those datasets available via WCS
  • Proposal to extend (and revise) CF metadata convention to enhance the grid mapping attributes (Phil Bentley - see: http://cf-pcmdi.llnl.gov/trac/ticket/18)
  • Provide useful review input for GALEON activities.

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