<?xml version="1.0" encoding="UTF-8"?>
<Project xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:xlink="http://www.w3.org/1999/xlink">
<identifier>
<PITHIA_Identifier>
<localID>Project_VTEC_Gradient_GIM</localID>
<namespace>upc-ionsat</namespace>
<version>1</version>
<creationDate>2026-07-06T14:24:00Z</creationDate>
<lastModificationDate>2026-07-06T14:24:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>VTEC gradient GIM</name>
<shortName>VTECg</shortName>
<abstract>The rapid UQRG Global Ionospheric Map of Vertical Total Electron Content Gradient (GIM) are being generated by UPC-IonSAT since June 1st, 1998, as a contribution to the International GNSS Service (IGS). They are assessed and combined on a daily basis and, in this context, the UQRG GIM is typically one of the best, or the best, behaving GIM in the international community.</abstract>
<description/>
<documentation>
<Citation>
<gmd:title>
<gco:CharacterString>VTEC gradient MAP</gco:CharacterString>
</gmd:title>
<gmd:date>
<gmd:CI_Date>
<gmd:date>
<gco:Date>1997-01-01</gco:Date>
</gmd:date>
<gmd:dateType>
<gmd:CI_DateTypeCode codeList="" codeListValue="">Publication Date</gmd:CI_DateTypeCode>
</gmd:dateType>
</gmd:CI_Date>
</gmd:date>
</Citation>
</documentation>
<relatedParty>
<ResponsiblePartyInfo>
<role xlink:href="https://metadata.pithia.eu/ontology/2.2/relatedPartyRole/PrincipalInvestigator"/>
<party xlink:href="https://metadata.pithia.eu/resources/2.2/organisation/pithia/Organisation_UPC-IonSAT"/>
</ResponsiblePartyInfo>
</relatedParty>
<status xlink:href="https://metadata.pithia.eu/ontology/2.2/status/OnGoing"/>
</Project>
