PPT: http://sites.google.com/a/aip3.ogcnetwork.net/home/home/air-quality-health/publishing-and-finding-services-using-gci/AQ_GEOSSInfrastructure.ppt?attredirects=0&d=1

From the Data Provider perspective: 

1. Publish data as a service. 

The AQ Community's convention is to use OGC Web Coverage Services and Web Map Services 

WMS Resources: http://wiki.esipfed.org/index.php/WMS_GetCapabilities

WCS Resources: http://wiki.esipfed.org/index.php/WCS_Access_to_netCDF_Files

Example service: 

GetCapabilities: http://webapps.datafed.net/AIRNOW.ogc?SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.1.1

GetMap: http://webapps.datafed.net/AIRNOW.ogc?SERVICE=WMS&REQUEST=GetMap&VERSION=1.1.1&SRS=EPSG:4326&LAYERS=pmfine&TIME=2009-08-23T10:00:00&BBOX=-130,24,-

65,52&WIDTH=800&HEIGHT=400&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&EXCEPTIONS=application/vnd.ogc.se_inimage&STYLES=default&FORMAT=image/png

Validate the service to ensure that it is compliant  (ESA Validator)

2. Describe the data and service with metadata for finding and accessing possibly with AQ Community conventions. 

AQ Metadata Record Description: 

Example Metadata Record: http://capita.wustl.edu/dataSpaceMetadata_ISO/DataFed.AIRNOW.pm10.xml

3. Publish the metadata record in a catalog 

Community Catalog is a Web Accessible Folder: http://capita.wustl.edu/dataSpaceMetadata_ISO/

4. Register the catalog in GEOSS Component and Service Registry

as a component: http://geossregistries.info/geosspub/component_details_ns.jsp?compId=urn:uuid:089197b9-3abd-42fb-afe2-c431cdd2204f

the associated catalog service: http://geossregistries.info/geosspub/service_details_ns.jsp?serviceId=urn:uuid:fa0874bf-3797-447f-aeea-c3644a7e0527

5. Search the GEOSS Clearinghouse for your own components and test services in GEO and Community portals  

USGS/FGDC Clearinghouse: http://clearinghouse.awcubed.com/cgi-bin/ch_query

Example Search: 

http://clearinghouse.awcubed.com/cgi-bin/ch_query?cmd=search&count=20&startIndex=0&keyword=&title=&type=&collection_name=Air+Quality+Community+Catalog&rawtext=Airnow&abstract=&identifier=&bbox=&format=HTML&.submit.x=0&.submit.y=0

From a Data User perspective

1. Search the Community or GEO Portal for data 

Example Community Application: AQ uFIND

http://webapps.datafed.net/AQ_uFIND.aspx?dataset=airnow&parameter=&instrument=&platform=&domain=&timeres=&vertical=&datatype=&distributor=&originator=&project=&event=&itemsperpage=50

2. Request additional information about the data

http://webapps.datafed.net/browser.aspx?dataset_abbr=WMS&service=http://webapps.datafed.net/AIRNOW.ogc&layer=pm10

3. Access the data through the service interface

http://webapps.datafed.net/AIRNOW.ogc?SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.1.1