<?xml version="1.0" encoding="UTF-8"?>
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<om:phenomenonTime/>
<om:resultTime/>
<om:procedure xlink:href="https://metadata.pithia.eu/resources/2.2/process/noa/CompositeProcess_NOA_Digisonde"/>
<om:observedProperty/>
<om:featureOfInterest>
<FeatureOfInterest>
<namedRegion xlink:href="https://metadata.pithia.eu/ontology/2.2/featureOfInterest/Earth_Ionosphere"/>
</FeatureOfInterest>
</om:featureOfInterest>
<om:result/>
<identifier>
<PITHIA_Identifier>
<localID>DataCollection_NOA_Digisonde</localID>
<namespace>noa</namespace>
<version>1</version>
<creationDate>2022-09-04T15:09:00Z</creationDate>
<lastModificationDate>2025-04-30T10:27:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>NOA Athens Digisonde (AT138) Data</name>
<description>The Ionospheric Group of the National Observatory of Athens operates the Athens Digisonde (URSI code: AT138), one of the most advanced European real-time ionospheric stations, a Digisonde Portable Sounder – 4D (DPS-4D) at Penteli site since 2000.
The Athens Digisonde performs 5-minute scheduled observations with vertical incidence ionograms and ionospheric plasma drifts.
The Athens Digisonde is part of the European Ionosonde Network DIAS (European Digital upper Atmosphere Server) and part of the Global Network GIRO (Global Ionospheric Radio Observatory), operated by the University of Massachusetts Lowell. The Athens Digisonde observations support the European Ionospheric Service (EIS) of the European Space Agency (ESA) Space Weather Service Network.</description>
<type xlink:href="https://metadata.pithia.eu/ontology/2.2/instrumentType/VerticalSounder"/>
<project xlink:href="https://metadata.pithia.eu/resources/2.2/project/noa/Project_NOA_Digisonde"/>
<relatedParty>
<ResponsiblePartyInfo>
<role xlink:href="https://metadata.pithia.eu/ontology/2.2/relatedPartyRole/PointOfContact"/>
<party xlink:href="https://metadata.pithia.eu/resources/2.2/individual/noa/Individual_NOA_Belehaki"/>
</ResponsiblePartyInfo>
</relatedParty>
<relatedParty>
<ResponsiblePartyInfo>
<role xlink:href="https://metadata.pithia.eu/ontology/2.2/relatedPartyRole/DataProvider"/>
<party xlink:href="https://metadata.pithia.eu/resources/2.2/organisation/pithia/Organisation_NOA"/>
</ResponsiblePartyInfo>
</relatedParty>
<collectionResults>
<source>
<OnlineResource>
<serviceFunction xlink:href="https://metadata.pithia.eu/ontology/2.2/serviceFunction/Numerical"/>
<serviceFunction xlink:href="https://metadata.pithia.eu/ontology/2.2/serviceFunction/Graphical"/>
<serviceFunction xlink:href="https://metadata.pithia.eu/ontology/2.2/serviceFunction/ApplicationDownload"/>
<linkage>
<gmd:URL>https://giro.uml.edu/didbase/</gmd:URL>
</linkage>
<name>DIDBase Ionogram Image Portal</name>
<protocol>HTTPS</protocol>
<description>The DIDBase WebPortal is a landing page for browsing and display of ionogram images. </description>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/image-png"/>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/text-plain"/>
</OnlineResource>
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<source>
<OnlineResource>
<serviceFunction xlink:href="https://metadata.pithia.eu/ontology/2.2/serviceFunction/OpenAPI"/>
<linkage>
<gmd:URL>https://electron.space.noa.gr/swnet_ionostream/api/v2/openapi.json</gmd:URL>
</linkage>
<name>Ionostream API</name>
<protocol>HTTPS</protocol>
<description>The Ionospheric Group of NOA provides the ionostream API for accessing ionospheric data. The ionostream API provides a browser-based user interface for data browsing and downloading. </description>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/text-sao"/>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/image-png"/>
</OnlineResource>
</source>
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<dataLevel xlink:href="https://metadata.pithia.eu/ontology/2.2/dataLevel/L2A"/>
<qualityAssessment>
<dataQualityFlag xlink:href="https://metadata.pithia.eu/ontology/2.2/dataQualityFlag/DQ0"/>
</qualityAssessment>
<permission xlink:href="https://metadata.pithia.eu/ontology/2.2/licence/NOA"/>
</DataCollection>
