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dc.contributor.author
Brunini, Claudio Antonio
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dc.contributor.author
Meza, Amalia Margarita
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dc.contributor.author
Bosch, W.
dc.date.available
2020-07-24T18:17:38Z
dc.date.issued
2005-06
dc.identifier.citation
Brunini, Claudio Antonio; Meza, Amalia Margarita; Bosch, W.; Temporal and spatial variability of the bias between TOPEX- and GPS-derived total electron content; Springer; Journal of Geodesy (print); 79; 4-5; 6-2005; 175-188
dc.identifier.issn
0949-7714
dc.identifier.uri
http://hdl.handle.net/11336/110211
dc.description.abstract
Total Electron Content (TEC) predictions made with the GPS-based La Plata Ionospheric Model (LPIM) and the International Reference Ionosphere (IRI95) model were compared to estimates from the dual-frequency altimeter onboard the TOPEX/Poseidon (T/P) satellite. LPIM and IRI95 are evaluated for the location and time of available T/P data, from January 1997 to December 1998. To investigate temporal and spatial variations of the TEC bias between T/P and each model, the region covered by T/P observations was divided into 10 latitude bands. For both models and for all latitudes, the bias was mainly positive (i.e. T/P values were larger); the LPIM bias was lower and less variable than the IRI95 bias. To perform a detailed analysis of temporal and spatial variability of the T/P-LPIM TEC bias, the Earth’s surface was divided into spherical triangles of 9° sides, and a temporal-varying regression model was fitted for every triangle. The highest TEC bias was found over the equatorial anomalies and it was attributed to errors of LPIM. A significant TEC bias was found at +40° latitude and it was attributed to errors in the T/P Sea State Bias (SSB) correction. To separate systematic errors in the T/P TEC from those caused by LPIM, altimeter range biases estimated by other authors are analysed in connection with the TEC bias. This analysis suggested that LPIM underestimates the TEC, particularly during summer, in the Southern Hemisphere; while T/P C-band SSB calibration is worse during winter, in the Southern Hemisphere
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Total electron content (TEC)
dc.subject
TOPEX/Poseidon
dc.subject
GPS
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Temporal and spatial variability of the bias between TOPEX- and GPS-derived total electron content
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-07-20T18:21:58Z
dc.journal.volume
79
dc.journal.number
4-5
dc.journal.pagination
175-188
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlin
dc.description.fil
Fil: Brunini, Claudio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.description.fil
Fil: Meza, Amalia Margarita. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Bosch, W.. Deutsches Geodaetisches Forschungsinstitut; Alemania
dc.journal.title
Journal of Geodesy (print)
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00190-005-0448-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00190-005-0448-z
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