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Executive SummaryTECHNICAL ANALYSIS OF THE DMAC SUBSYSTEMIOOS will consist of three subsystems:• OBSERVING SUBSYSTEM (remotely sensed and in situ measurements and their transmissionfrom platforms);• MODELING AND ANALYSIS SUBSYSTEM (evaluation and forecast of the state of the marineenvironment based upon measurements); and• DATA MANAGEMENT AND COMMUNICATIONS SUBSYSTEM (DMAC) (the integratingcomponent).DMAC provides the links within and among the other IOOS subsystems. DMAC will also providethe means to connect IOOS to international ocean data management systems and to significantdata management systems in other disciplines, such as atmospheric and terrestrial sciences.Figure 1 depicts the data flow relationships among the DMAC Subsystem and other IOOS componentsand partners.IOOS Observing Subsystem elements are managed by regional, national, and international entities.The measurements made by these elements are highly heterogeneous, and a wide range of telemetrysystems, including the World Meteorological Organization’s Global Telecommunication System(GTS), are used to transfer data from the measurement platforms to and among the locationsat which Primary Data Assembly and Quality Control occur. Primary Data Assembly and QualityControl (PDA&QC) processes lie at the interface between the Observing Subsystem and the DMACSubsystem. In general, some form of PDA&QC is required before ocean observations and measurementscan be used. The telemetry systems that convey data from sensors to primary data centers/sitesand the standards and procedures for data assembly and quality control lie outside thescope of this DMAC Plan.The DMAC Subsystem will include a data and communications infrastructure that consists ofstandards, protocols, facilities, software, and supporting hardware systems. DMAC will support:(1) IOOS-wide descriptions of data sets (Metadata); (2) the ability to search for and find data sets,products, and data manipulation capabilities of interest (Data Discovery); (3) the ability to accessmeasurements and data products from computer applications across the Internet (Data Transport);(4) the ability to quickly evaluate the character of the data through common Web browsers (OnlineBrowse); and (5) secure, long-term data storage (Data Archive).4
Executive SummaryIOOS Data CommunicationsIOOSObservingSubsystemPrimary DataAssembly & QCRegionalDataManagementSystemsInformationProductsForecastsMapsOn-line BrowseUsersTerrestrial &AtmosphericDataManagementSystemsDataMetadata,TransportDataStandardsDiscovery, andandProtocolsInternationalOcean DataManagementSystemsArchiveCentersModeling &AnalysisSubsystemFigure 1. Solid outlines indicate the elements of the IOOS Data Communications framework, which are detailed in theDMAC Implementation Plan. The arrows fl owing outward from users indicate the feedback and control mechanismsthrough which users ultimately direct the functioning of all parts of the system. Note that the National Data ManagementSystems are included in the concept of Primary Data Assembly and Quality Control.5
Page 1 and 2: Data Management and Communications
Page 3 and 4: Data Management and Communications
Page 8 and 9: Table of Contents
Page 10 and 11: GlossaryLAS ..................Live
Page 12 and 13: Executive Summary2
Page 16 and 17: Executive SummaryDMAC Metadata will
Page 18 and 19: Executive SummaryCOSTSThe cost esti
Page 20 and 21: Part I. OverviewContentsPreface ...
Page 22 and 23: Part I. OverviewIOOS - Enhancements
Page 24 and 25: Part I. Overviewing processes descr
Page 26 and 27: Part I. OverviewTHE VISIONIOOS is e
Page 28 and 29: Part I. Overview3. Heterogeneous da
Page 30 and 31: Part I. OverviewOne of these coordi
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Page 34 and 35: Part I. OverviewTHE DMAC SUBSYSTEM
Page 36 and 37: Part I. OverviewData Transport(see
Page 38 and 39: Part I. OverviewTable 1. Near-term
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Page 44 and 45: Part I. Overview• All data collec
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Page 52 and 53: Part I. OverviewTable 3. DMAC Overa
Page 54 and 55: Part I. Overview• Program Initial
Page 56 and 57: Part I. OverviewOutcome 3: Agreemen
Page 58 and 59: Part I. OverviewCONCRETE GUIDANCE T
Page 60 and 61: Part I. Overview- Notify the Nation
Page 62 and 63: Part II. Phased Implementation Plan
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Part II. Phased Implementation Plan
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Part III. Appendix 1: Metadata and
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Part III. Appendix 3: Data Archive
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Part III. Appendix 4: User Outreach
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Part III. Appendix 5: System Engine
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Part III. Appendix 6: Technology Ma
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Executive Summary - Draft2300 Clare
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