Automatic scaling of critical frequency foF2 from ionograms recorded at São José dos Campos, Brazil: a comparison between Autoscala and UDIDA tools

Pezzopane, M.; Pillat, V. G.; Fagundes, P. G.

doi:10.1007/s11600-017-0015-z

Artykuł - szczegóły

Tytuł artykułu

Automatic scaling of critical frequency foF2 from ionograms recorded at São José dos Campos, Brazil: a comparison between Autoscala and UDIDA tools

Autorzy

Pezzopane M. , Pillat V. G. , Fagundes P. G.

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-017-0015-z

Warianty tytułu

Języki publikacji

Abstrakty

This paper considers a dataset of ionograms recorded by the CADI ionosonde installed at São José dos Campos (SJC; 23.2°S, 45.9°W, magnetic latitude 14.1°S), Brazil, to compare two autoscaling systems: Autoscala, developed by the Istituto Nazionale di Geofisica e Vulcanologia, and the UDIDA-scaling, developed by the Universidade do Vale do Paraíba. The analysis, focused on the critical frequency of the F2 layer, foF2, shows that the two systems work differently. The UDIDA-scaling gives always a value of foF2 as output, regardless of the presence of the ionogram trace and its definition, while Autoscala tends to reject ionograms for which the digital information is considered insufficient. As a consequence, the UDIDA-scaling can autoscale more foF2 values than Autoscala, but Autoscala can discard a larger number of ionograms for which the trace is unidentifiable. Discussions are made on the accuracy of the foF2 values given as output, as well as on the main shortcomings characterizing the two systems.

Słowa kluczowe

ionogram ionosonde ionosphere critical frequency foF2 automatic scaling

jonogram jonosonda jonosfera częstotliwość krytyczna foF2 skalowanie automatyczne

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2017

Tom

Vol. 65, no. 1

Strony

173--187

Opis fizyczny

Bibliogr. 56 poz.

Twórcy

autor

Pezzopane M.

michael.pezzopane@ingv.it

Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy

autor

Pillat V. G.

Laboratório de Física e Astronomia Universidade do Vale do Paraíba (UNIVAP), São José dos Campos, Brazil

autor

Fagundes P. G.

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikator YADDA

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