Methodology and consistency of slant and vertical assessments for ionospheric electron content models.
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| Title: | Methodology and consistency of slant and vertical assessments for ionospheric electron content models. |
|---|---|
| Authors: | Hernández-Pajares, Manuel1 manuel.hernandez@upc.edu, Roma-Dollase, David, Krankowski, Andrzej2, García-Rigo, Alberto1, Orús-Pérez, Raül3 |
| Source: | Journal of Geodesy. Dec2017, Vol. 91 Issue 12, p1405-1414. 10p. |
| Subjects: | Ionospheric electric fields, Global Positioning System, Ionosphere, Kriging, Electrons |
| Abstract: | A summary of the main concepts on global ionospheric map(s) [hereinafter GIM(s)] of vertical total electron content (VTEC), with special emphasis on their assessment, is presented in this paper. It is based on the experience accumulated during almost two decades of collaborative work in the context of the international global navigation satellite systems (GNSS) service (IGS) ionosphere working group. A representative comparison of the two main assessments of ionospheric electron content models (VTEC-altimeter and difference of Slant TEC, based on independent global positioning system data GPS, dSTEC-GPS) is performed. It is based on 26 GPS receivers worldwide distributed and mostly placed on islands, from the last quarter of 2010 to the end of 2016. The consistency between dSTEC-GPS and VTEC-altimeter assessments for one of the most accurate IGS GIMs (the tomographic-kriging GIM 'UQRG' computed by UPC) is shown. Typical error RMS values of 2 TECU for VTEC-altimeter and 0.5 TECU for dSTEC-GPS assessments are found. And, as expected by following a simple random model, there is a significant correlation between both RMS and specially relative errors, mainly evident when large enough number of observations per pass is considered. The authors expect that this manuscript will be useful for new analysis contributor centres and in general for the scientific and technical community interested in simple and truly external ways of validating electron content models of the ionosphere. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Geodesy is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 126132106 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Methodology and consistency of slant and vertical assessments for ionospheric electron content models. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hernández-Pajares%2C+Manuel%22">Hernández-Pajares, Manuel</searchLink><relatesTo>1</relatesTo><i> manuel.hernandez@upc.edu</i><br /><searchLink fieldCode="AR" term="%22Roma-Dollase%2C+David%22">Roma-Dollase, David</searchLink><br /><searchLink fieldCode="AR" term="%22Krankowski%2C+Andrzej%22">Krankowski, Andrzej</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22García-Rigo%2C+Alberto%22">García-Rigo, Alberto</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Orús-Pérez%2C+Raül%22">Orús-Pérez, Raül</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Geodesy%22">Journal of Geodesy</searchLink>. Dec2017, Vol. 91 Issue 12, p1405-1414. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ionospheric+electric+fields%22">Ionospheric electric fields</searchLink><br /><searchLink fieldCode="DE" term="%22Global+Positioning+System%22">Global Positioning System</searchLink><br /><searchLink fieldCode="DE" term="%22Ionosphere%22">Ionosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Kriging%22">Kriging</searchLink><br /><searchLink fieldCode="DE" term="%22Electrons%22">Electrons</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A summary of the main concepts on global ionospheric map(s) [hereinafter GIM(s)] of vertical total electron content (VTEC), with special emphasis on their assessment, is presented in this paper. It is based on the experience accumulated during almost two decades of collaborative work in the context of the international global navigation satellite systems (GNSS) service (IGS) ionosphere working group. A representative comparison of the two main assessments of ionospheric electron content models (VTEC-altimeter and difference of Slant TEC, based on independent global positioning system data GPS, dSTEC-GPS) is performed. It is based on 26 GPS receivers worldwide distributed and mostly placed on islands, from the last quarter of 2010 to the end of 2016. The consistency between dSTEC-GPS and VTEC-altimeter assessments for one of the most accurate IGS GIMs (the tomographic-kriging GIM 'UQRG' computed by UPC) is shown. Typical error RMS values of 2 TECU for VTEC-altimeter and 0.5 TECU for dSTEC-GPS assessments are found. And, as expected by following a simple random model, there is a significant correlation between both RMS and specially relative errors, mainly evident when large enough number of observations per pass is considered. The authors expect that this manuscript will be useful for new analysis contributor centres and in general for the scientific and technical community interested in simple and truly external ways of validating electron content models of the ionosphere. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Geodesy is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00190-017-1032-z Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1405 Subjects: – SubjectFull: Ionospheric electric fields Type: general – SubjectFull: Global Positioning System Type: general – SubjectFull: Ionosphere Type: general – SubjectFull: Kriging Type: general – SubjectFull: Electrons Type: general Titles: – TitleFull: Methodology and consistency of slant and vertical assessments for ionospheric electron content models. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hernández-Pajares, Manuel – PersonEntity: Name: NameFull: Roma-Dollase, David – PersonEntity: Name: NameFull: Krankowski, Andrzej – PersonEntity: Name: NameFull: García-Rigo, Alberto – PersonEntity: Name: NameFull: Orús-Pérez, Raül IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 09497714 Numbering: – Type: volume Value: 91 – Type: issue Value: 12 Titles: – TitleFull: Journal of Geodesy Type: main |
| ResultId | 1 |
