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Interoperability plans and tests between GEODAB and the GEONETCast
S. Nativi1, F. Papeschi1, M. Craglia2, Y. Gevorgyan3, K. Renner4
1 CNR-IIA2 EC-JRC
3 NOAA4 EUMETSAT
IODE
INPEEEA-SDI
EnviroGRIDS/WaterML
OneGeology SAEOS
CommunityPortals
GCI
Total Records
GEOSS Data Core Comments
EuroGEOSS 3201 9
EEA SDI GEOSSDataCore Catalog 345 345
These records will be displayed as GEOSS DataCore in late March (Broker will be updated to support the tagging of an entire catalog)
PANGAEA 420430 420430
These records will be displayed as GEOSS DataCore in late March (Broker will be updated to support the tagging of an entire catalog)
NASA GCMD 22055 8340GEOSS Clearinghouse 126381 512
INPE 800000 800000
A new capacity was recently provided by INPE using a new protocol, this will be available in late march with the new deployment of the Broker. The number of records is estimated.
Web-Service energy Catalog 230 11EEA SDI catalogue 679 0SeaDataNet 501 0WIS GISC DWD 128203 0KNOSSOS 536 0NOAA Unified Access Framework Catalog 1448 0IODE 4 0OneGeology 379 0SAEON 108 0
GENESI 6000000 0The number of records is estimated (due the GENESI DEC protocol)
Compusult Catalog 7000000 0 Service seems to be down at the moment
Grand TOTAL 14504500 1229647
EO Systems, Capacities, and Infrastructures:e.g. Geo CHC, CWIC, GENESI-DEC, GBIF, GCMD, SeaDataNet, OneGeology, ..
GEO Web GEO Web PortalPortal
GCIGEOGEODABDAB
. .. . ..
CommunityPortals
GEONETCast.. a near real time, global network
of satellite-based data dissemination systems providing environmental data to a world-
wide user community
.. a near real time, global network of satellite-based data
dissemination systems providing environmental data to a world-
wide user community
http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/SP_20100519114624675?l=en
GEONETCast Infrastructure
• Satellite-based regional dissemination system — based upon Digital Video Broadcast (DVB) technology
• GEONETCast Broadcast Streams– EUMETCast
• Europe, Africa and the Americas• Established in 2004• More than 2,000 registered reception stations• More than 1,600 users
– CMACast (China Meteorological Administration’s contribution)• Utilises the AsiaSat 4 satellite beam to broadcast data and products to a user
community in the Asia Pacific region.
– GEONETCast-Americas• Broadcast covering the Americas, managed by NOAA
GEONETCast interconnection to GEO-DAB/GCI
• Entry pointTransfer ProtocolTransfer Protocol
GEOGEODABDAB
GEONETCast downlink
XDB
GEONETCastData Server
GI-NETCast
User
file system
Harvesting OAI-PMH
Harvesting OAI-PMH
BroadcastingDVB
BroadcastingDVB
Local storingXDB
Local storingXDB
Local discoveryGI-NETCast
Local discoveryGI-NETCast
General Approach1. EUMETSAT Data Server uses the GEO-DAB
harvesting interface to download all the available GCI (metadata) records
2. GEONETCast satellites broadcasts the harvested GCI to GEONETCast users
3. Users Data Server updates the local DB with the received (broadcasted) content
4. Users discovers and evaluates the local DB content using an adapted (offline desktop) version of the EuroGEOSS GEO-DAB client
Harvesting and broadcasting requirements
Satellite traffic MUST be reduced as much as possible, GCI provides millions of entries
Satellite throughput is limited, large files MUST be avoided
GCI records are not static, GEONETCast user DBs MUST be updated (near real time)
GI-NETCast requirementsGood performances on low cost PCs
Portability on different operating systems and hardware
Provide (at least) the basic discovery features (i.e. search by keywords, area and temporal period) via a user friendly GUI
GI-NETCast: query
GI-NETCast: query results
GI-NETCast: browsing
Future work• Interoperability test is the basis for one of the
Showcases that will be proposed for the Ministerial – providing the basis for access and use of GEO data
and serves in countries with limited internet access
• Interoperability test with the 52N GEONETCast Toolbox Software.
Thank you !
Questions?
nativi@iia.cnr.it
EO Systems, Capacities, and Infrastructures:e.g. CWIC, GENESI-DEC, GBIF, GCMD, SeaDataNet, OneGeology, ..
GEO Web GEO Web PortalPortal
GCIGEOGEODABDAB
. .. . ..
GEONETCast• GEONETCast is a milestone in GEOSS
• Products and services are being made available to the GEONETCast user community:– Meteosat image data– GOES East and West image data– FY-2 image data– Land and Ocean Sea Ice Satellite
Application Facility (SAF) products– EUMETSAT meteorological products
– NOAA-NESDIS meteorological products
– NOAA-NESDIS Ocean colour and sea surface temperature products
– VEGETATION products from VITO– MODIS Ocean colour products– In-situ and observational data
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