Mostra el registre d'ítem simple

dc.contributor.authorGulyaeva, Tamara L.
dc.contributor.authorArikan, Feza
dc.contributor.authorHernández Pajares, Manuel
dc.contributor.authorStanislawska, Iwona
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV
dc.date.accessioned2015-06-30T08:28:00Z
dc.date.available2015-09-30T00:31:09Z
dc.date.created2013-09
dc.date.issued2013-09
dc.identifier.citationGulyaeva, T. [et al.]. GIM-TEC adaptive ionospheric weather assessment and forecast system. "Journal of atmospheric and solar-terrestrial physics", Setembre 2013, vol. 102, p. 329-340.
dc.identifier.issn1364-6826
dc.identifier.urihttp://hdl.handle.net/2117/28462
dc.description.abstractThe Ionospheric Weather Assessment and Forecast (IWAF) system is a computer software package designed to assess and predict the world-wide representation of 3-D electron density profiles from the Global Ionospheric Maps of Total Electron Content (GIM-TEC). The unique system products include daily-hourly numerical global maps of the F2 layer critical frequency (foF2) and the peak height (hmF2) generated with the International Reference Ionosphere extended to the plasmasphere, IRI-Plas, upgraded by importing the daily-hourly GIM-TEC as a new model driving parameter. Since GIM-TEC maps are provided with 1- or 2-days latency, the global maps forecast for 1 day and 2 days ahead are derived using an harmonic analysis applied to the temporal changes of TEC, foF2 and hmF2 at 5112 grid points of a map encapsulated in IONEX format (-87.5°:2.5°:87.5°N in latitude, -180°:5°:180°E in longitude). The system provides online the ionospheric disturbance warnings in the global W-index map establishing categories of the ionospheric weather from the quiet state (W=±1) to intense storm (W=±4) according to the thresholds set for instant TEC perturbations regarding quiet reference median for the preceding 7 days. The accuracy of IWAF system predictions of TEC, foF2 and hmF2 maps is superior to the standard persistence model with prediction equal to the most recent ‘true’ map. The paper presents outcomes of the new service expressed by the global ionospheric foF2, hmF2 and W-index maps demonstrating the process of origin and propagation of positive and negative ionosphere disturbances in space and time and their forecast under different scenarios.
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa::Programació matemàtica
dc.subject.lcshComputational geometry
dc.subject.lcshNumerical analysis
dc.subject.otherCrirical frequency
dc.subject.otherGlobal ionospheric map
dc.subject.otherIonospheric weather
dc.subject.otherIRI-Plas
dc.subject.otherPeak height
dc.subject.otherTotal electron content
dc.titleGIM-TEC adaptive ionospheric weather assessment and forecast system
dc.typeArticle
dc.subject.lemacGeometria computacional
dc.subject.lemacAnàlisi numèrica
dc.contributor.groupUniversitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres
dc.identifier.doi10.1016/j.jastp.2013.06.011
dc.description.peerreviewedPeer Reviewed
dc.subject.ams65K Mathematical programming, optimization and variational techniques
dc.subject.amsClassificació AMS::65 Numerical analysis::65D Numerical approximation and computational geometry
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S1364682613001879
dc.rights.accessOpen Access
local.identifier.drac12772196
dc.description.versionPostprint (author's final draft)
local.citation.authorGulyaeva, T.; Arikan, F.; Hernandez, M.; Stanislawska, I.
local.citation.publicationNameJournal of atmospheric and solar-terrestrial physics
local.citation.volume102
local.citation.startingPage329
local.citation.endingPage340


Fitxers d'aquest items

Thumbnail

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple