<?xml version="1.0" encoding="UTF-8"?>
<DataCollection xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:om="http://www.opengis.net/om/2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="https://metadata.pithia.eu/schemas/2.2 https://metadata.pithia.eu/schemas/2.2/pithia.xsd">
<om:phenomenonTime/>
<om:resultTime/>
<om:procedure xlink:href="https://metadata.pithia.eu/resources/2.2/process/noa/CompositeProcess_DIAS_Network"/>
<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_DIAS_Network</localID>
<namespace>noa</namespace>
<version>1</version>
<creationDate>2023-09-10T16:46:00Z</creationDate>
<lastModificationDate>2025-04-30T10:30:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>European Ionosonde Network DIAS (European Digital upper Atmosphere Server) collection</name>
<description>The European DIgital Upper Atmosphere Server (DIAS) aims at the development of a European digital data collection on the state of the upper atmosphere and on the efficient promotion of this collection to all possible users.
DIAS provides access to ionograms, daily plots and maps for real-time ionospheric specification, for the long-term prediction frequency planning, for the nowcasting frequency management and warning purposes and for trans-ionospheric propagation. Furthermore, the DIAS collection contains data of the Digisonde's Network acquired by NOA.
Data availability depends on each station, ie: AT138 since 2012, EB040-RO041-RL052-PQ052-JR055 since 2017, EA036 since 2021, TR170-SO148-DB049 since 2023.
The available distinct products of the Network are the following: ART, DFT, DOP, DRG, DVL, GIF, ION, MMM, PNG, RSF, RSF.TMP, SAO, SBF, SKY, TLT, TMP, TXT, XML.
SAO records (foF2, foF1, mD, mufD, fmin, foEs, fminF, fminE, foE, fxI, hF, hF2, hE, hEs, zmE, yE, qf, qe, downF, downE, downEs, ff, fe, d, fMUF, hfMUF, delta_foF2, foEp, fhF, fhF2, foF1p, phF2lyr, phF1lyr, zhalfNm, foF2p, fminEs, yF2, yF1, tec, scHgtF2pk, b0IRI, b1IRI, d1IRI, foEa, hEa, foP, hP, fbEs, typeEs) are also available.</description>
<type xlink:href="https://metadata.pithia.eu/ontology/2.2/computationType/Model"/>
<type xlink:href="https://metadata.pithia.eu/ontology/2.2/computationType/IonogramScaling_Automatic"/>
<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_DIAS"/>
<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"/>
<linkage>
<gmd:URL>https://dias.space.noa.gr/</gmd:URL>
</linkage>
<name>European Digital Upper Atmosphere Server (DIAS portal)</name>
<protocol>HTTPS</protocol>
<description>The DIAS WebPortal is a landing page for accessing ionograms, daily plots and maps for real-time ionospheric specification, for the long-term prediction frequency planning, for the nowcasting frequency management and warning purposes and for trans-ionospheric propagation.</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>
</source>
<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>
</source>
<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>
</collectionResults>
<dataLevel xlink:href="https://metadata.pithia.eu/ontology/2.2/dataLevel/L2A"/>
<qualityAssessment>
<dataQualityFlag xlink:href="https://metadata.pithia.eu/ontology/2.2/dataQualityFlag/DQ1"/>
</qualityAssessment>
<permission xlink:href="https://metadata.pithia.eu/ontology/2.2/licence/CCBY"/>
</DataCollection>
