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 9EEA 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 momentGrand 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

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 Protocol

GEOGEODABDAB

GEONETCast downlink

XDB

GEONETCastData Server

GI-NETCast

User

file system

Harvesting OAI-PMH

BroadcastingDVB

Local storingXDB

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