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The performance of physics - based and emprirical models during St. Patrick day storm 2015

Fernandez-Gomez, Isabel und Goss, Andreas und Schmidt, Michael und Codrescu, Mihail und Borries, Claudia und Schlicht, Anja (2019) The performance of physics - based and emprirical models during St. Patrick day storm 2015. Dynamic Earth SPP 1788, 2019-06-04 - 2019-06-06, Bad Aibling, Germany. (nicht veröffentlicht)

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Kurzfassung

Knowledge about the variability of the Thermosphere – Ionosphere (TI) system is essential for many communication and navigation applications, especially during storm conditions, since the ionospheric storm disturbances will influence the propagation characteristics of radio waves. Ionosphere models and ionospheric observations help to analyse and understand the dynamics of ionospheric storms in the strongly interactive TI system. For that reason, this study will assess the performance of physics based and empirical models of the ionosphere. Within the assessment we compare the model results with observations, in order to demonstrate their capabilities. In this study we use two different models; the first model, the Coupled Thermosphere Ionosphere Plasmasphere electrodynamics (CTIPe), is a global 3D time-dependent physics based nonlinear, numerical code that consist of four distinct components running concurrently and fully coupled with respect to energy momentum and continuity. CTIPe will serve as a background model for a new assimilation scheme named Thermosphere Ionosphere Data Assimilation (TIDA). This new scheme is based on an Ensemble Kalman Filter approach as required by the strongly forced nature of the modeled system. The second model, , the high resolution empirical ionosphere model developed at DGFI-TUM is based on the combination of data from different space-geodetic observation techniques, namely GNSS, Satellite Altimetry, DORIS, Langmuir Probe (LP) and Ionospheric Radio Occultations (IRO). As an additional input data source and to stabilize the electron density key parameter estimation, the separation approach is applied to calculate electron density values on a 3D grid, from the combination of electron density profiles calculated by a given model such as IRI or NeQuick and 2D VTEC maps. As a first step of the data assimilation studies in the INSIGHT – II project, we will use the St. Patrick’s Day storm 2015 as case study, to validate the models against Total Electron Content (TEC) derived from ground based Global Navigation Satellite System (GNSS) measurements, as well as the critical frequency of the F2 layer and the maximum electron density height measured by different ionosondes around the globe.

elib-URL des Eintrags:https://elib.dlr.de/128003/
Dokumentart:Konferenzbeitrag (Poster)
Titel:The performance of physics - based and emprirical models during St. Patrick day storm 2015
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Fernandez-Gomez, Isabelisabelfg79 (at) gmail.comNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Goss, Andreasandreas.goss (at) tum.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schmidt, Michaelmg.schmidt (at) tum.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Codrescu, MihailSWPC, NOAA, BoulderNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Borries, Claudiaclaudia.borries (at) dlr.dehttps://orcid.org/0000-0001-9948-3353NICHT SPEZIFIZIERT
Schlicht, Anjaanja.schlicht (at) tum.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2019
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:nicht veröffentlicht
Stichwörter:Ionosphere, CTIPe, Geomagnetic storm
Veranstaltungstitel:Dynamic Earth SPP 1788
Veranstaltungsort:Bad Aibling, Germany
Veranstaltungsart:Workshop
Veranstaltungsbeginn:4 Juni 2019
Veranstaltungsende:6 Juni 2019
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Projekt InSight (alt)
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Kommunikation und Navigation
Hinterlegt von: Fernandez Gomez, PhD. Isabel
Hinterlegt am:24 Jun 2019 14:45
Letzte Änderung:24 Apr 2024 20:31

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