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Data Usage Vocabulary Use Case

ERIC STEPHAN, BERNADETTE FARIAS LÓSCIO, SUMIT PUROHIT

Data on the Web Best Practices Data Usage Vocabulary Editors

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Data Usage Vocabulary

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Major Components

  • DCAT:Dataset / DCAT:Distribution Centric
  • Usage – Providing information about what can operate on a dataset. (publisher or collaborator perspective)
  • Feedback – Describing interactions and responses from the consumer communities about the dataset.
  • Citation – Associating information references (e.g. scientific, about) of the dataset

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Collaborator Use Case

  • A citizen of the Web ‘Eric’ wanted to view and analyze a formatted dataset of interest and wanted a way to document their findings as a means of sharing with fellow collaborators.

​

  • Eric wanted to view a published observational data formatted in NetCDF with an off the shelf viewer he could find through a web search engine.

​

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Selecting a Dataset/Distribution of Interest

  • Using a discovery tool rdesc.org by designating a box roughly bounding the Western United States as a boundary. The query returned a number of results. (e.g. Dataset).

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  • A specific set of observations for solar radiation called ‘ARESE-ER2-MAS’ was stored in a NetCDF format and was selected and landing page was available for the dataset.

​

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rdesc.org

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DUV Describing The Dataset/Distribution

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ex:dataset-western-us-rdesc

a dcat:Dataset;

dct:spatial "North 47.8525 West -128.8916 South 30.5749 East -94.4385" ;

dcat:landingPage <https://rdesc.org/browse> ;

rdfs:comment "Note the landing page will take you to a browser, enter the geospatial coordinates to return the dataset"

.

​

​

ex:distribution-arese-er2-mas

a dcat:Distribution;

dct:title "ARM Enhanced Shortwave Experiment (ARESE) Solar Radiation Data";

dcat:distribution ex:dataset-western-us-rdesc;

dcat:landingPage <http://gcmd.nasa.gov/KeywordSearch/Metadata.do?Portal=GCMD&OrigMetadataNode=GCMD&EntryId=ARESE_ER2_MAS> ;

dc:identifier "doi:10.1029/97jd02434"

rdfs:comment "You must order the data from the landing page to use"

.

​

​

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NetCDF Distribution Usage

  • Select off the shelf viewer and was interested discovering available NetCDF distributions that he could use to view and plot observational data.

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DUV Describing Usage

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ex:netcdf-browser

a prov:Agent, prov:SoftwareAgent ;

foaf:homePage <http://www.epic.noaa.gov/java/ncBrowse/> ;

rdfs:label "browser" .

​

ex:viewer

a prov:Role;

rdfs:label "software used for examining netcdf files" .

​

ex:plot-netcdf-data

a duv:Usage;

prov:entity ex:distribution-arese-er2-mas

.

​

ex:plot-netcdf-variables

a prov:Activity;

rdfs:label "Tools that can examine solar radiation data in NetCDF";

prov:qualifiedAssociation [

a prov:Association;

prov:agent ex:netcdf-browser;

prov:hadRole ex:viewer;

];

prov:qualifiedUsage ex:plot-netcdf-data

.

​

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Bad news….problems encountered with data availability – Need to provide feedback

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?

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DUV Describing Feedback

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ex:distribution-arese-er2-mas-comment

a duv:Feedback ;

oa:hasBody "Was unsuccessful downloading dataset from landing page. Is there a problem with data availability?" ;

oa:hasTarget ex:distribution-arese-er2-mas ;

oa:annotatedBy ex:eric ;

.

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ex:distribution-arese-er2-mas-comment-reply

a duv:Feedback ;

oa:hasBody "The ARM project might have a copy: please see https://www.arm.gov/campaigns/sgp1995arese " ;

oa:hasTarget ex:distribution-arese-er2-mas-comment ;

oa:motivatedBy oa:replying ;

oa:annotatedBy ex:eric

.

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ex:dataset-western-us-rdesc-comment

a duv:Feedback ;

oa:hasBody "Use the data entry fields at the lower left hand part of the screen to get this dataset" ;

oa:hasTarget ex:dataset-western-us-rdesc ;

oa:annotatedBy ex:eric ;

.

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Citing Helpful References

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DUV Describing Citation

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ex:thisCitation

a duv:Citation;

cito:hasCitingEntity ex:distribution-arese-er2-mas;

cito:hasCitedEntity :readmeFile;

.

​

ex:readmeFile

a foaf:document

<https://eosweb.larc.nasa.gov/sites/default/files/project/arese/readme/readme_arese_er2_mas.txt>;

dct:title "Readme file for the ARESE ER2 MAS Data Sets"@en;

duv:cites ex:distribution-arese-er2-mas;

.

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Composite Usage Information Value Added Back in Search Repository

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ex:thisCitation

a duv:Citation;

cito:hasCitingEntity ex:distribution-arese-er2-mas;

cito:hasCitedEntity :readmeFile;

.

​

ex:readmeFile

a foaf:document

<https://eosweb.larc.nasa.gov/sites/default/files/project/arese/readme/readme_arese_er2_mas.txt>;

dct:title "Readme file for the ARESE ER2 MAS Data Sets"@en;

duv:cites ex:distribution-arese-er2-mas;

.

ex:netcdf-browser

a prov:Agent, prov:SoftwareAgent ;

foaf:homePage <http://www.epic.noaa.gov/java/ncBrowse/> ;

rdfs:label "browser" .

​

ex:viewer

a prov:Role;

rdfs:label "software used for examining netcdf files" .

​

ex:plot-netcdf-data

a duv:Usage;

prov:entity ex:distribution-arese-er2-mas

.

​

ex:plot-netcdf-variables

a prov:Activity;

rdfs:label "Tools that can examine solar radiation data in NetCDF";

prov:qualifiedAssociation [

a prov:Association;

prov:agent ex:netcdf-browser;

prov:hadRole ex:viewer;

];

prov:qualifiedUsage ex:plot-netcdf-data

.

​

Usage

Citation

ex:distribution-arese-er2-mas-comment

a duv:Feedback ;

oa:hasBody "Was unsuccessful downloading dataset from landing page. Is there a problem with data availability?" ;

oa:hasTarget ex:distribution-arese-er2-mas ;

oa:annotatedBy ex:eric ;

.

​

ex:distribution-arese-er2-mas-comment-reply

a duv:Feedback ;

oa:hasBody "The ARM project might have a copy: please see https://www.arm.gov/campaigns/sgp1995arese " ;

oa:hasTarget ex:distribution-arese-er2-mas-comment ;

oa:motivatedBy oa:replying ;

oa:annotatedBy ex:eric

.

​

ex:dataset-western-us-rdesc-comment

a duv:Feedback ;

oa:hasBody "Use the data entry fields at the lower left hand part of the screen to get this dataset" ;

oa:hasTarget ex:dataset-western-us-rdesc ;

oa:annotatedBy ex:eric ;

.

Feedback