Known Issues With LinkedEarth Representation of the PAGES2k Dataset

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Revision as of 18:32, 26 July 2017 by Khider (Talk | contribs) (Earliest/latest sample date)

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This page lists the issue identified with the representation of the PAGES2k dataset in LinkedEarth.

Ghost measured variables

Because the LinkedEarth Ontology requires the representation of the archive type to be made on a measured variable, it was decided to create "ghost" measured variable if only the inferred variables were archived. The following datastes have improperly set the inferred variable to a measured variable with a Property:ProxyObservationType (L) set to "Ghostmeasured".

Instead, these datasets should have an additional entry in the JSON-LD file with the proper Property:ProxyObservationType (L).

 
Afr-P178-15P.Tierney.2015.paleo3measurement1
Ant-DSS.DahlJensen.1999.paleo1measurement1
Ant-WAIS-Divide.Severinghaus.2012.paleo1measurement1
Arc-BigRoundLake.Thomas.2009.paleo1measurement1
Arc-GulfofAlaska.Wilson.2014.paleo1measurement1
Arc-HudsonLake.Clegg.2011.paleo1measurement1
Arc-Iceland.Bergthorsson.1969.paleo1measurement1
Arc-LakeE.DAndrea.2011.paleo1measurement1
Arc-MD992275.Jiang.2005.paleo1measurement1
Arc-StoreggaSlide.Sejrup.2011.paleo1measurement1
... further results

Earliest Sample Date/Latest Sample Date

The period covered by the record should be provided at the variable level through the HasMinValue and HasMaxValue properties.

Pages showing EarliestSampleDate can be found here while pages showing LatestSampleDate can be found here.