Metadata for Data Understandability Ted Habermann NOAA National Geophysical Data Center...
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Metadata for Data Understandability Ted Habermann NOAA National Geophysical Data Center [email protected] AGU, Spring 2008
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Transcript of Metadata for Data Understandability Ted Habermann NOAA National Geophysical Data Center...
Metadata forData Understandability
Ted HabermannNOAA National Geophysical Data Center
[email protected], Spring 2008
Mandatory Responsibilities for an Archive1. Negotiate with Producers.2. Obtain control of the information.3. Define Designated Community.4. Ensure that the information to be preserved is
Independently Understandable to the Designated Community. In other words, the community should be able to understand the information without needing the assistance of the experts who produced the information.
5. Document preservation policies and procedures.
6. Make information available.
CCSDS Open Archival Information System Reference Model (now an ISO Standard)
Role of Documentation
WWW - 1990's
Discovery
Understanding
Discovery
Understanding
Discovery
Understanding
Before 2000's
Role of Metadata
Metadata Gap
ID Q SO SR E/A D M0
100
200
300
400
500
600
# M
eta
data MetadataGap
FGDC with Remote Sensing Extensions
Spatial Reference
DistributionInformation
Metadata ReferenceInformation
Metadata
Base Standard
IdentificationInformation
Data Quality
Spatial DataOrganization
Entity & Attribute
Information
RSE Standard
InstrumentInformation
Mission &Platform
Information
RSE RSE
RSERSERSE
Question #1
New Standard Emerges:
What is the minimum that I need to do to conform to this standard?
What is the most that this standard can do for me?
Essentially a yes/no answer, a list of metadata elements.
Depends on 1) understanding of the standard and 2) ingenuity..
Metadata Team
Data Provider
Direct Users
MetadataManager
DesignatedCommunity
(ArchiveUsers)
Partnership DataManager
Archive
High quality metadata involves active partnerships between many team members.
Partnership
Lamont Multibeam Data at NGDC:Identifying Scientific Papers & Cruise
References to Scientific Papers
Cruise = Platform & Mission
Lamont Multibeam Data at NGDC:Survey Parameters
Detailed Entity and Attributeinformation aboutMultibeam Bathymetry,Multibeam Amplitude, Multibeam Sidescan
Lamont Multibeam Data at NGDC:Instrumentation Information
Metadata section that describesinstrumentation.
DART Data at NGDC:Instrumentation Information
Metadata section that describesinstrumentation.
Atmospheric Pathfinder at CLASS:Mission History
Metadata for platforms and mission
Generating ISO Metadata
RichInventory
MADIS TrackingNMMR
Existing Quality Resources
Existing Metadata Resources
ISO Generator
ISOMetadata
RESTViews
Existing quality resources are queried using a web service (REST) for the “beef” of the quality report. The “bun” is provided from views into existing FGDC or new ISO sources. These two are combined into a complete ISO report.
The “Beef”
The “Bun”
Metadata for UnderstandabilityRequires an Active Partnership
Data Provider
Direct Users
MetadataManager
DesignatedCommunity
PartnershipData
Manager
Archive
Partnership
Data Providers
+ Archives
+ Users
= Understandability
More Information
More Examples http://www.ngdc.noaa.gov/metadata/published
ISO Ideas: http://www.ngdc.noaa.gov/presentations
