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GI-cat / THREDDS notes. GI-cat/THREDDS system. http://www.giida.cnr.it/gi-cat-thredds/. GI-cat/THREDDS system. More than 50000 metadata records periodically harvested Implements a mapping from THREDDS data model (TDM) to ISO19139
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GI-cat/THREDDS system http://www.giida.cnr.it/gi-cat-thredds/
GI-cat/THREDDS system More than 50000 metadata records periodically harvested Implements a mapping from THREDDS data model (TDM) to ISO19139 Makes available for discovery THREDDS datasets from a CSW 2.0.2 ISO AP interface
Queries “by variable”: enabled • Variables information mapping:
Different clients supported • GI-go geobrowser (thick client) • Browser (GI-portal light client) • Browser (OpenSearch search engine) • ArcGIS Explorer • ArcGISArcMap 10 • WorldWind • Matlab (work in progress) • …
Work in progress • GI-cat client library for Matlab • Enable queries to GI-cat from Matlab / Octave E.g. queries by area, time, free text • ISO19139 results are available for further processing
Proxy scenario LAN WMS service CDI service Proxy GI-cat THREDDS service
Additional metadata THREDDS datamodelmay not suffice to hold all the available metadata information. E.g.: • THREDDS datamodel does not fully contain ISO19115 datamodel) • Plethora of NetCDF conventions + custom information in NetCDF attributes ISO19115 datamodel THREDDS datamodel NetCDF datamodel
Proposed extension #1 • Extended THREDDS data model It seems the optimal “long term solution”, however may impact on existing TDS clients Extended TDS THREDDS Accessor +
Proposed extension #2 • Extended metadata harvesting (at different entrypoints) THREDDS Accessor + TDS ISO19115 module (nciso) OPeNDAP module