Objectives of OceanDataPortal
The objective of the Ocean Data Portal is to facilitate and promote the exchange and dissemination marine data and services. The Ocean Data Portal will provide seamless access to collections and inventories of marine data from the NODCs in the IODE network and will allow for the discovery, evaluation (through visualisation and metadata review) and access to data via web services. The system architecture will use Web-oriented information technologies to access non-homogeneous and geographically distributed marine data and information.
ODP will be developed in close cooperation with existing and developing initiatives such as the IODE/JCOMM E2EDM Pilot Project, SeaDataNet, WIS, Australian Oceans Portal, US DMAC, Russian ESIMO and others. The ODP will also support the data access requirements of other IOC programmes areas, including GOOS, JCOMM, HAB and the Tsunami warning system. The ODP development will also work closely with other international initiatives including WIS and GEOSS to ensure interoperability with other domains.
The OceanDataPortal vision
The Ocean Data Portal will deliver a standards-based infrastructure that provides the integration of marine data and information from a network of distributed IODE NODCs as well as the resources from other participating systems, as shown on the diagram below.
The Ocean Data Portal will provide on-line access to the marine data and information resources of the participating data centres including:
- operational and delay-mode data
- data and services from the oceanographic and marine meteorological domains
- from multiple data source formats and local data systems (DBMS, data files, GIS, electronic documents)
- from multiple data providers in different geographic regions
The Ocean Data Portal will not create a new data system. The key principles of the Portal will be interoperability with existing systems and resources. Participating IODE data centres will need to accept and implement a set of agreed interoperable arrangements including the technical specifications and Web-services for the integration and shared use of the metadata, data and products. This interoperability will be achieved through the use of internationally endorsed standards (such as SOA, ISO and OGC) and it will not be a requirement for data centres to change their internal data management systems. The interoperability arrangements will be developed in close cooperation with existing and developing systems (see section 3) and will follow international standards and best practices.
The Ocean Data Portal will provide the full range of processes including data discovery, access, and visualization. The following functionality is envisaged:
- IODE data centres will generate discovery metadata about their datasets for distributed data search and retrieving.
- The Portal will periodically harvest these metadata, monitor the accessibility of a remote data sources and update the portal metadata catalogue.
- Users can access the system via a web browser and search for single or multiple data types from a distributed set of sources.
- Data request will be sourced from the appropriate data centre and returned to the Portal.
- Portal tools will fuse the aggregated data and services in real time to produce a new product or service of value to the user.
The Ocean Data Portal will conform to open standards service-oriented architecture (SOA) and will include the following components:
- Data providers: Participating NODCs will form nodes on the IODE data centres network and will provide data and metadata to the Portal. Discovery metadata will be harvested from the contributing nodes to populate the Catalogue.
- Data Portal. An interface to provide the ability to search for data from contributing data centres which will make available data discovery, visualization, content management and administration tools.
- Catalogue. The metadata catalogue will provide a registry of existing data and services available from the data providers.
OceanDataPortal Project
The OceanDataPortal was formally established at IODE-XIX through Recommendation IODE-XIX.4 (THE IODE OCEAN DATA PORTAL PROJECT), which is included below.
It is expected that the Project will start in the second half of 2007.
Recommendation IODE-XIX.4
THE IODE OCEAN DATA PORTAL PROJECT
"The IOC Committee on International Oceanographic Data and Information Exchange,
Noting with satisfaction the submission of the IODE Ocean Data Portal Concept Paper that is aimed to provide the integration of marine data and information from a network of distributed IODE data centres as well as the resources from other participating systems and that will be based upon modern web technologies,
Taking into account that a number of similar initiatives are planned or have started such as IODE/JCOMM E2EDM Pilot Project, SeaDataNet, DMAC, WIS and others,
Recommends the establishment of the IODE Ocean Data Portal Project with the Terms of Reference as attached in the Annex of this recommendation;
Invites the IOC Executive Secretary, in consultation with the Co-Chairs of IODE and the Chair of the JCOMM-DMCG, to establish a Steering Group (SG-ODP) to implement and monitor the progress of the Project;
Invites IODE Member States and other interested countries and organizations, to participate in, and support the activities of the Project
Annex to Recommendation IODE-XIX.4
Terms of Reference of the IODE Ocean Data Portal Project
Objectives of the Project:
- facilitate and promote the exchange and dissemination of marine data and services hosted by NODCs;
- provide seamless access to marine data to NODCs across the IODE network through the discovery, evaluation and access to data via web services;
- identify and recommend standards to provide interoperability with IODE data centres to allow shared use of metadata, data and products.
The Participants in the Pilot Project:
The Project will be carried out by a Steering Group composed of, inter alia, representatives of IODE/JCOMM ETDMP, SG-MEDI, SG-MarineXML, WMO ICG-WIS, and other appropriate experts as required for each work package.
Work Plan and Timing:
The Project Steering group will implement 3 work packages (Project coordination and management; Standards and development package; Portal implementation package) during the inter-sessional period (2007-2009) and submit a detailed report on the work achieved at the Twentieth Session of IODE (2009).
Financial implications:
2007: US$ 20,000 (extra-budgetary sources (obtained from USA)
2008-2009 US$ 100,000 (extra-budgetary sources (to be identified))
Documentation and Meeting Reports
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IOC/IODE-XIX/15: The IODE Ocean Data Portal: Concept Paper
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IODE OceanDataPortal and WIS Technology Workshop
The IODE Ocean Data Portal and WIS Technology Workshop was held in Obninsk, Russian
Federation, from 18 to 19 March 2009. The aim of the meeting was to address Ocean Data Portal
(ODP) and the WMO Information System (WIS) technologies and interoperability issues in order to
refine ODP version 1 and produce plans for ODP version 2.
The workshop reviewed the progress of the ODP version 1 development, discussed ODP and WIS
interoperability issues to support the WIGOS Pilot Project fro JCOMM, and considered the
reference model and development plan for ODP version 2.
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