<?xml version="1.0" encoding="UTF-8"?>
<DataCollection xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:om="http://www.opengis.net/om/2.0" xsi:schemaLocation="https://metadata.pithia.eu/schemas/2.2 https://metadata.pithia.eu/schemas/2.2/pithia.xsd">
<!--
First report some required elements from ISO standard for Observation
-->
<om:phenomenonTime/><!-- DO NOT USE, we report phenomenon time only in Catalogs -->
<om:resultTime/> <!-- DO NOT USE, we report result time only in Catalogs -->
<om:procedure xlink:href="https://metadata.pithia.eu/resources/2.2/process/noa/CompositeProcess_EIS_foF2_Nowcast"/>
<om:observedProperty/>
<om:featureOfInterest>
<FeatureOfInterest>
<namedRegion xlink:href="https://metadata.pithia.eu/ontology/2.2/featureOfInterest/Earth_Ionosphere"/>
</FeatureOfInterest>
</om:featureOfInterest>
<om:result/> <!-- DO NOT USE, we use the CollectionResults below to specify URLs to provider) -->
<!--
Now our Data Collection elements next
-->
<identifier>
<PITHIA_Identifier>
<localID>DataCollection_EIS_foF2_Nowcast</localID>
<namespace>noa</namespace>
<version>1</version>
<creationDate>2023-03-14T21:32:00Z</creationDate>
<lastModificationDate>2024-07-22T14:04:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>EIS foF2 Nowcast Maps</name>
<!-- Type is not allowed here. Comes from procedure ? -->
<!-- <type xlink:href="https://metadata.pithia.eu/ontology/2.2/instrumentType/IncoherentScatterRadar"/> -->
<description>
Nowcasts of the foF2 critical frequency for the European region are made available with hourly resolution in the form of maps as images (PNG) and text files (ASCII).
The maps cover the European area between -10°W and 40°E in longitude and between 34°N and 80°N in latitude and are updated every hour.
The grid values are estimated through the implementation of the upgraded Simplified Ionospheric Regional Model Updated in real-time (SIRMUP, Zolesi et al., 2004; Tsagouri et al., 2005).
This combines the standard SIRMUP output in the middle latitudes (up to 60°N) with the real-time updated CCIR output for the higher latitudes.
The update of the CCIR maps follows the concept of the SIRMUP and the estimation of the effective sunspot number (Houminer et al. 1993) independently at high latitudes.
The algorithm receives as input real time autoscaled foF2 values from the expanded DIAS network.
</description>
<type xlink:href="https://metadata.pithia.eu/ontology/2.2/computationType/Model"/>
<project xlink:href="https://metadata.pithia.eu/resources/2.2/project/noa/Project_NOA_EIS"/>
<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/Download"/>
<linkage><gmd:URL>https://swe.ssa.esa.int/dias-federated</gmd:URL></linkage>
<name>European Ionosonde Service (EIS) Interface</name>
<protocol>HTTPS</protocol>
<description>The EIS provides a browser-based user interface for data browsing and downloading.
Direct data access requires authentication by external organisation (ESA);
once user access is authorised the link lands directly at the EIS page.
The product can be accessed by selecting the "foF2 Nowcasting Maps" tab.</description>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/text-plain"/>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/image-png"/>
</OnlineResource>
</source>
<source>
<OnlineResource>
<serviceFunction xlink:href="https://metadata.pithia.eu/ontology/2.2/serviceFunction/Application"/>
<linkage><gmd:URL>https://techtide-srv-pub.space.noa.gr:8443/api/</gmd:URL></linkage>
<name>TechTIDE API</name>
<protocol>HTTPS</protocol>
<description>The TechTIDE API provides a browser-based user interface for data browsing and downloading.
API parameters: (1) Endpoint: products/eis/data, (2) Date-time format: YYYY-MM-DDThh:mm:ss (ISO format),
(3) maximum temporal range of query: 15 days, (4) product: fof2ncascii (Data) and fof2ncimg (Plot),
(5) withmanifest: false.</description>
<dataFormat xlink:href="https://metadata.pithia.eu/ontology/2.2/resultDataFormat/text-plain"/>
<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/L4"/>
<qualityAssessment>
<dataQualityFlag xlink:href="https://metadata.pithia.eu/ontology/2.2/dataQualityFlag/DQ4"/>
</qualityAssessment>
<permission xlink:href="https://metadata.pithia.eu/ontology/2.2/licence/CCBY"/>
</DataCollection>
