Consistent Content of CLASS Metadata

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==CLASS Metadata: References for Consistency of Content==
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out of date content - see history tab
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While creating and editing metadata, it is helpful to keep a central reference for the content of the metadata fields.
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This is not intended to re-describe the FGDC content standard, but to provide a consistent way to populate the elements for CLASS metadata.
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===Identification Information===
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====ID Info > Dataset Identifier====
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*  gov.noaa.class:ID_VALUE
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====ID Info > Citation Info > Online Linkage====
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* the originator’s website that pertains to data set
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* CLASS URL for search page of that data set.
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** EX: <nowiki>http://www.class.noaa.gov/nsaa/products/search?sub_id=0&datatype_family=AVHRR</nowiki>
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** Two CI Online Resource elements for CLASS - Information (002) and Search (005).
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====ID Info > Citation > Publication Date====
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* first known/recorded date of dataset creation regardless of archival and distribution
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====ID Info > Time Period of Content > Range of Dates====
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* time range of the life of a dataset, regardless of archival and distribution
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* start date = publication date
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* end date = a known end date or 'Present' if ongoing
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====ID Info > Processing Level====
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* for NOAA data sets cite FGDC RSE standard Appendix-B as a reference
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* BAT UID = 23285 in fgdcCitation component recordset
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* More about ProcessingLevel
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====ID Info > Keywords > Theme > Theme Keyword Thesaurus====
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* Use the following naming conventions:
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* NASA/GCMD Earth Science Keywords
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* ISO 19115 Topic Category
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** climatologyMeteorologyAtmosphere
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** geoscientificInformation
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** oceans
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** imageryBaseMapsEarthCover
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* INFOTERRA Keyword Thesaurus
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* NASA/GCMD Location Keywords
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* NASA/GCMD Instrument Keywords
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* Uncontrolled Keywords
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====ID Info > Platform and Instrument ID====
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* Repeatable compound element with a one-to-one relationship between mission, platform and instrument
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* Use GCMD Keywords site for naming conventions
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** GCMD Keywords (outside link)
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* The values in these elements should not be a comma delimited list!
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* View XML example of this section
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===Data Quality Information===
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====Data Quality > Acquisition Info====
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* This does not apply to collection level metadata, because the information required is specific to a single image.
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====Data Quality > Lineage > Source Information====
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* Used to document sources that the dataset is derived from, as well as, ancillary sources.
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* If there is an existing metadata record for the source, then use the citation record from the metadata record.
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* /citeinfo/citId = /srcinfo/srccitea = /procstep/srcused or /procstep/srcprod
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** Citation Identification is used as the Source Citation Abbreviation and then in turn used in the Process Step to identify the sources used and produced.
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===Distribution Information===
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====Distribution Info > Distribution Contact====
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* BAT UID 1609 in fgdcContact component recordset
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====Distribution Info > Resource Description====
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* same as /idinfo/datsetid > Dataset Identifier, but without the namespace (gov.noaa.class:)
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====Distribution Info > Standard Order > Resource Description====
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* description of the file naming convention for dataset
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* EXAMPLE:
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File name format is - Processing-Center.Data-Type.Spacecraft-Unique-ID.Year-Day.Start-Time.Stop-Time.Processing-Block-ID.Source
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(e.g. NSS.GHRR.NM.D06233.S2314.E0109.B2161415.WI ).
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For details go to Help pages at <nowiki>http://www.class.noaa.gov.</nowiki>
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====Distribution Info > Standard Order Process > Digital Format====
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* 1 SOP and muliple digital formats
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* include CI_OnlineResources for download (001)
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====Distribution Info > Standard Order Process > Digital Format > Digital Option > Online Option > Network Address====
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* for OPenDAP access to NetCDF digital formats
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* EX: <nowiki>http://www.class.noaa.gov/cgi-bin/nph-dods/data/sst50</nowiki>
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====Distribution Info > Distribution Liability====
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* Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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====Distribution Info > Available Time Period====
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* Start and end date of data archival in CLASS
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===Metadata Reference Information===
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====Metadata Reference > Metadata Standard Name====
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* Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata
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====Metadata Reference > Metadata Standard Version====
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* FGDC-STD-012-2002
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====Metadata Reference > Metadata Extensions====
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* Compound element that describes local extensions to the metadata records.
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* Extensions in NMMR and used for CLASS metadata are at NGDC Extensions.
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===Mission and Platform Information===
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====Mission Info > Significant Event > Process Step====
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* This compound element is typically used to date and describe launches and operational status of satellites within a mission.
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* See XML sample of POES mission: Mission Info
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====Platform Info > Start Date====
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* Satellite Operational start date. This is different than the launch date of a satellite.
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====Platform Info > Platform Description====
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* At the least, this free text element should include:
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** launch date
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** instruments on satellite
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** operational status/decommission date
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====Platform Info > Platform Orbit > Ephemeris====
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* This is the date and time of which the values of the satellite orbit are described.
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====Platform Info > Platform Orbit > Keplerian Orbit====
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* The values for the required elements of a polar orbiting satellite are obtainable from the Two Line Elements that NORAD publishes.
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* View mapping between TLE values and Xpaths of orbital metadata elements at: TLE and Xpaths.
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===Other Details===
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====Dates====
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There are a variety of dates associated with the datasets and this synopsis highlights the differences in CLASS metadata.
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* First known date of dataset creation regardless of known archivals
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** Identification Info > Citation Info > Publication Date
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* Range of dates of dataset lifespan, regardless of known archivals
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** Identification Info > Time Period of Content > Range of Dates
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* Known dates of archival/availability in CLASS
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** Distribution Info > Avaiable Time Period
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====Online Linkage and CI_OnlineResource====
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* Repeatable element
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* Online Linkage and CI_OnlineResource URLs must match exactly
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* CLASS has 3 CI_OnlineResources for one URL
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** search, information needs to be named in id info > citation
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** download needs to be named in distribution > standard order process > dig format
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* note: In NMMR, used CI_OnlineResource component record BATUID 4407 for www.class.noaa.gov OnlineLinkage url.
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* For more reference visit FGDC Extensions.
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[[Category:Metadata]]
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Current revision

out of date content - see history tab

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