<?xml version="1.0" encoding="UTF-8"?>
<CompositeProcess 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" xsi:schemaLocation="https://metadata.pithia.eu/schemas/2.2 https://metadata.pithia.eu/schemas/2.2/pithia.xsd">
<!-- Instructions:
This is a composite process that includes all data acquisitions and data computations involved in a single Observation.
1. If ObservationCollection is a model computation, acquisitionComponent is not defined
2. Input parameters for the model or measurement are not listed here, they are in ObservationCollection
3. Capability items inside acquisition and computation components are all-inclusive
-->
<identifier>
<PITHIA_Identifier>
<localID>CompositeProcess_NTCM-G</localID>
<namespace>dlr-so</namespace>
<version>1</version>
<creationDate>2024-08-12T12:00:00Z</creationDate>
<lastModificationDate>2024-08-12T12:00:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>NTCM G: Galileo single-frequency ionospheric corrections model calculation</name>
<description>
The Neustrelitz Total Electron Content (TEC) Model for Galileo satellite navigation systems NTCM G can be used to determine Galileo single-frequency ionospheric corrections. It is proposed as an alternative to the reference algorithm NeQuick G. The model was developed by the German Aerospace Center (DLR) and validated with the support of ESA, and the Joint Research Centre (JRC) of the European Commission. The reduced complexity and runtime of the NTCM G algorithm are beneficial, in particular in user-segments where the equipment has limited resources available, like for civil avionics receivers or location-based services for smartphones.
</description>
<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>
<!-- This list is grossly incomplete! -->
<computationComponent xlink:href="https://metadata.pithia.eu/resources/2.2/computation/dlr-so/Computation_NTCM-G"/>
</CompositeProcess>
