lubiaconhecernignorar.ppt [modo de...
TRANSCRIPT
WGISS / CEOS
Lubia VinhasLubia Vinhas
CAP 378 and “Conhecer para não ignorar”CAP‐378 and Conhecer para não ignorarApril 20, 2012
Coordinates civil space‐borne observations of the Earth. Participating agencies strive to enhance international coordination and data exchange and to optimize societal benefitcoordination and data exchange and to optimize societal benefit
Proposal: WGISS‐35Proposal: WGISS‐35 in Brazil, INPE.
Discussion lists and teleconsDiscussion lists and telecons
Coordinates civil space‐borne observations of the Earth. Participating agencies strive to enhance international coordination and data exchange and to optimize societal benefitcoordination and data exchange and to optimize societal benefit
NASA GCMDNASA GCMD
The Global Change Master Directory (GCMD) holds more than 25,000 Earth science data set and service descriptions, which cover subject areas within the Earth and environmental sciencesthe Earth and environmental sciences
http://gcmd.nasa.gov/ (1989). Users can search through the Directory’s website using controlled keywords, free‐text searches, map/date searches orwebsite using controlled keywords, free text searches, map/date searches or any combination of these. Users may also search or refine a search by data center, location, instrument, platform, project, or temporal/spatial resolution
The project also serves as one of NASA’s contributions to the international Committee on Earth Observation Satellites (CEOS), through which it is known as the CEOS International Directory Network (IDN)
CEOS IDN DIFCEOS IDN ‐ DIF
The Directory Interchange Format (DIF) (1987) is the "container" for the metadatacontainer for the metadata elements that are maintained in the IDN database, where lid ti f d t fi ldvalidation for mandatory fields,
keywords, personnel, etc. takes place. pDIF has full ISO compatibility, since it contains all the l d b helements required by the ISO 19115/TC211 geospatial metadata standard http://idn.ceos.orgp g
GCMDGCMD
Revision of existing, and inclusion of new, datasets registered in GCMD: 50 in total and 14 related to CWIC
Coordinates civil space‐borne observations of the Earth. Participating agencies strive to enhance international coordination and data exchange and to optimize societal benefitcoordination and data exchange and to optimize societal benefit
Catalogue Abstract Information Model
General Catalogue Interface Model
Mi i l lMinimal query languageCore queryable attributesCore returnable properties
Core Schema, expressed using the syntax of Dublin Core Metadata, ISO 15836. Simple: 15 elements, as base text fields,
ISO 19115 (19139): 7 categories of metadata l t E I f ti t i t lit telements. Ex. Information, contraints, quality, etc.
OASIS ebXML Registry Information Model (ebRIM)
extensions
g y ( )
Catalogue Abstract Information Model
General Catalogue Interface Model
Reference Model Architecture
Conceptual Architecture
HTTP
General interfaces can be bound to several application protocolsZ39.50CORBA
Source: CEOS IDN Newsletter, September 2011
CDSR Remote Sensing Data CenterCDSR – Remote Sensing Data Center~ 1 million of scenes
From 01/01/2011 to 04/18/2012
43,047 scenes inserted into the repository: 2,036 AWIF, 7,875 LIS3, 24,855 MODIS , 8,281 TM
25,925 new users and 439,928 requests33% of requests: less than 1 min14% of requests: 1 to 2 min
…
http://www.dgi.inpe.br/CDSR/
CEOSS WGISS Integrated Catalog (CWIC)CEOSS WGISS Integrated Catalog (CWIC)
CWIC provides an access point for major CEOS agency catalog systemsCWIC di t ib t i t / d t h t th CEOSCWIC distributes inventory/product searches to the CEOS agency inventory systems using the agency systems native protocolCWIC employs a mediator wrapper architecture to fulfillCWIC employs a mediator‐wrapper architecture to fulfill distributed searchesCWIC exposes an OGC CSW 2 0 2 Core profile/ ISO profile‐CWIC exposes an OGC CSW 2.0.2 Core profile/ ISO profilecompliant interfaces on the front‐endExtensions to the OGC CSW 2.0.2 are designed and utilized in theExtensions to the OGC CSW 2.0.2 are designed and utilized in the CWIC front‐end interface
CWIC Context Diagram
AC Portal LSI PortalCWIC Clients
CWIC CSW Service Interface
IDN
Legend
CWICMediator
Mediator Core
Legend
CWIC – Wrapper
CSW Interface
CWIC – Mediator
GC CSW ProtocolCSW Interface CSW InterfaceCSW Interface
NOAA CLASS
Java API
CSW Interface
USGS
CSW Interface
ECHO Connector Partner’s Native Protocol
To‐be‐defined protocol
Connector Connector
NOAA CLASS‐US
NASA ECHO‐US
USGS Landsat System‐US
AOE‐Beijing‐China INPE‐Brazil
CWIC Context Diagram
AC Portal LSI PortalCWIC Clients
CWIC CSW Service Interface
IDN
Legend
CWICMediator
Mediator Core
Legend
CWIC – Wrapper
CSW Interface
CWIC – Mediator
GC CSW ProtocolCSW Interface CSW Interface CSW InterfaceCSW Interface
NOAA CLASS
Java API
CSW Interface
USGS
CSW Interface
ECHO
CSW Interface
INPE Connector Partner’s Native Protocol
To‐be‐defined protocol
Connector Connector Connector
NOAA CLASS‐US
NASA ECHO‐US
USGS Landsat System‐US
AOE‐Beijing‐China INPE‐Brazil
INPE ConnectorINPE ConnectorCSW Interface
INPE Connector
Translates CWS queries in calls to the PHP interfaces Connector
Translates returned data in CSW responses
Describes the search attributes and response elements in
Inventory Service
Describes the search attributes and response elements in INPEs metadata database
Provides a minimum set of PHP interfaces that responsible
INPE‐Brazil
pfor communicate with local database server
INPE ConnectorINPE Connector
Inventory Service
INPE‐Brazil
Service
Thanks to Jeferson Souza!
CWIC in actionCWIC in actionC C ill id li i f ll d id d ll d h bl f i
http://cwic.csiss.gmu.edu
CWIC will provide a listing of all dataset ids and all data sources reachable from its Mediator in its Capabilities document. Scenario:1. Keyword search against GCMD using PROJECT=CWIC.2. Response is a collection of matching datasets, identified by DIF Entry_ID and
dataset name.3. Retrieve CWIC Capabilities document from the CWIC server. Human‐readable titles p
and identifiers will be available in the Capabilities document for each CWIC‐accessible dataset.
4. Submit GetRecords request to CWIC to find matching data granules in brief q g grecords.
5. Select desired granule by ID from GetRecordsResponse.6 Submit GetRecordById request for full record using granule ID6. Submit GetRecordById request for full record, using granule ID.7. Get full record for granule of interest in GetRecordByIdResponse.8. Retrieve data granule from host system using the URL in the full record response.
Experiment with CSW ServerExperiment with CSW Server
Geonetwork and the CDRS metadata repository
Interaction with other groupsInteraction with other groups
Interaction with other groupsInteraction with other groups
Interaction with other groupsInteraction with other groups
ConclusionsConclusions
Our participation could be more structuredLots of discussion and documentLots of discussion and document reading/reviewing, in different areasR i d k f INPERepresentatives are expected to speak for INPE Resources are finite and we try to do our best by y ymultitaskingW d l thiWe do learn somethingIt is fun!
Lubia Vinhas ‐ [email protected]
THANK YOULubia Vinhas [email protected]