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Enhancing Data Discovery, Understanding and Usage through an Air Quality Metadata System ISRSE, 6 May 2009 The Palazzo dei Congressi di Stresa Stresa,

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Presentation on theme: "Enhancing Data Discovery, Understanding and Usage through an Air Quality Metadata System ISRSE, 6 May 2009 The Palazzo dei Congressi di Stresa Stresa,"— Presentation transcript:

1 Enhancing Data Discovery, Understanding and Usage through an Air Quality Metadata System ISRSE, 6 May 2009 The Palazzo dei Congressi di Stresa Stresa, Italy Erin Robinson, R.B. Husar, S.R. Falke, E.T. Habermann, S. Nativi, A. Warnock, M. Hogeweg, J. Lieberman

2 Goals of AIP II for Air Quality Test and evaluate the GCI for AQ applications. Registering and retrieving AQ data through the Clearinghouse Connect AQ Applications to GCI

3 Emission Surf. Obs. Satellite Model Population Informing the Public Enforcing Standards Hemispheric Transport Real-time Service Regulatory Analysis Policy Assessment Air Quality & Health Applications Observing Systems Atmospheric Composition Science & Education

4 Hurdles “The user cannot find the data; If he can find it, cannot access it; If he can access it, ; he doesn't know how good they are; if he finds them good, he can not merge them with other data” The Users View of IT, NAS 1989

5 SOA Actions Actions: Register– Discover -Access User Provider Broker The data reuse is possible through the service oriented architecture of GEOSS.

6 SOA Actions Actions: Register– Discover -Access User Provider Broker The data reuse is possible through the service oriented architecture of GEOSS.

7 SOA Actions Register Metadata Actions: Register– Discover -Access User Provider Broker GEOSS Clearinghouse

8 SOA Actions Access Data Actions: Register– Discover -Access Discover Get Access User Provider Broker GEOSS Clearinghouse

9 SOA Actions Access Data Actions: Register– Discover -Access Discover Get Access User Provider Broker GEOSS Clearinghouse The result is a dynamic binding mechanism to create loosely-coupled work-flow applications. Register Metadata

10 Preparation of Data and Metadata Metadata Data Data Protocol WMS, WCS (netDCF CF) + conventions User Provider GEOSS Clearinghouse Access

11 Preparation of Data and Metadata Register Metadata Metadata Data Data Protocol WMS, WCS (netDCF CF) + conventions Metadata ISO 19115 subset for Geospatial Data User Provider GEOSS Clearinghouse

12 Air Quality Metadata Record Discover, Get Access Key User Provider GEOSS Clearinghouse OGC CSW Queryable Air Quality Specific ISO 19115 CSW Profile OGC CSW Returnable Metadata Description Data Binding Metadata for Finding and Accessing Data

13 Register Data Service Registration via GetCapabilities to ISO 19115 translation AQ Community Catalog Web Accessible Folder ISO record for each Dataset Data Protocol WMS, WCS (netCDF CF) + conventions Metadata ISO 19115 subset for Geospatial Data Register Metadata Metadata Data User Provider GEOSS Clearinghouse

14 Catalog Registration in GEOSS Registry AQ Community Catalog Web Accessible Folder ISO record for each Dataset Register Metadata Metadata Data User Provider GEOSS Clearinghouse GEOSS Registry Register in CSR Query Catalogs

15 Register Data Service Registration via GetCapabilities to ISO 19115 translation AQ Community Catalog Web Accessible Folder ISO record for each Dataset Data Protocol WMS, WCS (netCDF CF) + conventions Metadata ISO 19115 subset for Geospatial Data Periodic harvest Register Metadata Metadata Data User Provider GEOSS Clearinghouse

16 Search for AQ Data AQ-Specific Filter Community Portal Provider GEOSS Clearinghouse Coarse Filter OGC CSW Queryable OGC CSW Returnable Data Binding

17 Refined Search for AQ Data AQ-Specific Filter Community Portal Provider GEOSS Clearinghouse Coarse Filter Refined Search OGC CSW Queryable Air Quality Specific ISO 19115 CSW Profile OGC CSW Returnable Metadata Description Data Binding

18 Next Steps: Continue to work with AQ community to improve the AQ-specific sections needed for sharper discovery Work with AQ data providers to register their services in the AQ Community Catalog Extend metadata unstructured user-contributed content through DataSpaces

19 Airnow DataSpace Dataset Description Dataset Discussion

20 Summary Discover: CSW/RSS/ISO Access: WMS/WCS Register: ISO Metadata User Provider GEOSS Clearinghouse Existing data and metadata standards now allow the application of SOA to air quality Over 30 air quality datasets are registered and accessible through the GCI

21 Acknowledgements George Percivall, OGC GEO Clearinghouses and GEO Portals: ESRI USGS Compusult

22 Links ESIP AQ Cluster AQ Community Portal | ISO 19115 AQ Metadata EditorAQ Community PortalISO 19115 AQ Metadata Editor AQ Community Catalog | AQ Client BrowserAQ Community Catalog AQ Client Browser

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