elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Predicting global thermospheric neutral density during periods with high geomagnetic activity

Forootan, Ehsan und Farzaneh, Saeed und Kosary, Mona und Borries, Claudia und Kodikara, Timothy und Schumacher, Maike (2023) Predicting global thermospheric neutral density during periods with high geomagnetic activity. Scientific Reports, 13 (20322). Nature Publishing Group. doi: 10.1038/s41598-023-47440-x. ISSN 2045-2322.

[img] PDF - Verlagsversion (veröffentlichte Fassung)
7MB

Offizielle URL: https://www.nature.com/articles/s41598-023-47440-x

Kurzfassung

Estimating global and multi-level Thermosphere Neutral Density (TND) is important for studying coupling processes within the upper atmosphere, and for applications like orbit prediction. Models are applied for predicting TND changes, however, their performance can be improved by accounting for the simplicity of model structure and the sampling limitations of model inputs. In this study, a simultaneous Calibration and Data Assimilation (C/DA) algorithm is applied to integrate freely available CHAMP, GRACE, and Swarm derived TND measurements into the NRLMSISE-00 model. The improved model, called ‘C/DA-NRLMSISE-00’, and its outputs fit to these measured TNDs, are used to produce global TND fields at arbitrary altitudes (with the same vertical coverage as the NRLMSISE-00). Seven periods, between 2003-2020 that are associated with relatively high geomagnetic activity selected to investigate these fields, within which available models represent difficulties to provide reasonable TND estimates. Independent validations are performed with along-track TNDs that were not used within the C/DA framework, as well as with the outputs of other models such as the Jacchia-Bowman 2008 and the High Accuracy Satellite Drag Model. The numerical results indicate an average 52%, 50%, 56%, 25%, 47%, 54%, and 63% improvement in the Root Mean Squared Errors of the short term TND forecasts of C/DA-NRLMSISE00 compared to the along-track TND estimates of GRACE (2003, altitude 490 km), GRACE (2004, altitude 486 km), CHAMP (2008, altitude 343 km), GOCE (2010, altitude 270 km), Swarm-B (2015, altitude 520 km), Swarm-B (2017, altitude 514 km), and Swarm-B (2020, altitude 512 km), respectively.

elib-URL des Eintrags:https://elib.dlr.de/199683/
Dokumentart:Zeitschriftenbeitrag
Titel:Predicting global thermospheric neutral density during periods with high geomagnetic activity
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Forootan, EhsanUniversity of Aalborg, Department of Planning, Rendsburggade 14, 9000 Aalborg, Denmarkhttps://orcid.org/0000-0003-3055-041XNICHT SPEZIFIZIERT
Farzaneh, SaeedSchool of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran 113654563, Iranhttps://orcid.org/0000-0002-0534-0632NICHT SPEZIFIZIERT
Kosary, MonaSchool of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran 113654563, IranNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Borries, Claudiaclaudia.borries (at) dlr.dehttps://orcid.org/0000-0001-9948-3353NICHT SPEZIFIZIERT
Kodikara, TimothyTimothy.Kodikara (at) dlr.dehttps://orcid.org/0000-0003-4099-9966NICHT SPEZIFIZIERT
Schumacher, MaikeUniversity of Aalborg, Department of Planning, Rendsburggade 14, 9000 Aalborg, DenmarkNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:21 November 2023
Erschienen in:Scientific Reports
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:13
DOI:10.1038/s41598-023-47440-x
Verlag:Nature Publishing Group
ISSN:2045-2322
Status:veröffentlicht
Stichwörter:Thermosphere Neutral Density, CHAMP, GRACE, GOCE, Swarm, Forecast
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Solar-Terrestrische Physik SO
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Solar-Terrestrische Physik
Hinterlegt von: Kodikara, Dr Timothy
Hinterlegt am:28 Nov 2023 08:42
Letzte Änderung:26 Aug 2024 10:07

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.