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

Difference spectrum fitting of the ion-neutral collision frequency from dual-frequency EISCAT measurements

Günzkofer, Florian Ludwig und Stober, Gunter und Pokhotelov, Dimitry und Miyoshi, Yasunobu und Borries, Claudia (2023) Difference spectrum fitting of the ion-neutral collision frequency from dual-frequency EISCAT measurements. Atmospheric Measurement Techniques (AMT). Copernicus Publications. doi: 10.5194/amt-16-5897-2023. ISSN 1867-1381.

[img] PDF - Verlagsversion (veröffentlichte Fassung)
2MB

Offizielle URL: https://amt.copernicus.org/articles/16/5897/2023/

Kurzfassung

The plasma-neutral coupling in the mesosphere-lower thermosphere strongly depends on the ion-neutral collision frequency across that region. Most commonly, the collision frequency profile is calculated from the climatologies of atmospheric models. However, previous measurements indicated that the collision frequency can deviate notably from the climatological average. Direct measurement of the ion-neutral collision frequency with multifrequency incoherent scatter radar (ISR) measurements has been discussed before, though actual measurements have been rare. The previously applied multifrequency analysis method requires a special simultaneous fit of the two incoherent scatter spectra, which is not possible with standard ISR analysis software. The difference spectrum method allows us to infer ion-neutral collision frequency profiles from multifrequency ISR measurements based on standard incoherent scatter analysis software, such as the Grand Unified Incoherent Scatter Design and Analysis Package (GUISDAP) software. In this work, we present the first results by applying the difference spectrum method. Ion-neutral collision frequency profiles obtained from several multifrequency EISCAT ISR campaigns are presented. The profiles obtained with the difference spectrum method are compared to previous collision frequency measurements, both from multifrequency ISR and other measurements, as well as results from empirical and comprehensive atmosphere models. Ion-neutral collision frequency measurements can be applied to improve first-principle ionospheric models

elib-URL des Eintrags:https://elib.dlr.de/200790/
Dokumentart:Zeitschriftenbeitrag
Titel:Difference spectrum fitting of the ion-neutral collision frequency from dual-frequency EISCAT measurements
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Günzkofer, Florian Ludwigflorian.guenzkofer (at) dlr.dehttps://orcid.org/0000-0001-6568-2995NICHT SPEZIFIZIERT
Stober, GunterInstitute of Applied Physics & Oeschger Center for Climate Change Research, Microwave Physics, University of Bern, Bern, Switzerlandhttps://orcid.org/0000-0002-7909-6345NICHT SPEZIFIZIERT
Pokhotelov, DimitryDimitry.Pokhotelov (at) gmail.comhttps://orcid.org/0000-0002-3712-0597NICHT SPEZIFIZIERT
Miyoshi, YasunobuKyushu University, Fukuoka, JapanNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Borries, Claudiaclaudia.borries (at) dlr.dehttps://orcid.org/0000-0001-9948-3353NICHT SPEZIFIZIERT
Datum:Dezember 2023
Erschienen in:Atmospheric Measurement Techniques (AMT)
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.5194/amt-16-5897-2023
Verlag:Copernicus Publications
ISSN:1867-1381
Status:veröffentlicht
Stichwörter:Ion-neutral collision frequency Incoherent Scatter Radar EISCAT
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 Kopplungsprozesse
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Solar-Terrestrische Physik > Solar-Terrestrische Kopplungsprozesse
Hinterlegt von: Günzkofer, Florian Ludwig
Hinterlegt am:15 Dez 2023 08:28
Letzte Änderung:08 Jan 2024 14:08

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.