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Evaluation of the Mid-Latitude Ionospheric trough Using GRACE Data

Lubyk, Kateryna and Hoque, Mohammed Mainul and Stolle, Claudia (2022) Evaluation of the Mid-Latitude Ionospheric trough Using GRACE Data. IWGI 2022, 26-28 Sep 2022, Neustrelitz, Germany.

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Abstract

Our study aims to analyze the main ionospheric trough using K-Band Ranging system (KBR) measurements from the GRACE satellite constellation. The trough was investigated from data over a period from 2002 to 2015, covering both high and low solar activity conditions. The mid-latitude ionospheric trough (MIT) properties are examined for both the Northern and Southern Hemispheres. The MIT is chracterized by its trough’s minimum position, width, depth, and probability. We investigated the dependence of MIT parameters on the magnetic local time, geographic distribution, seasons, and solar and geomagnetic activity conditions, including solar wind plasma speed, interplanetary magnetic field components, and high-resolution geomagnetic indices SYM-H and Hp 30. In this work, we show the elliptical distribution of the mean location of the trough minimum over three seasons for the Northern and Southern hemispheres, as well as the MIT parameter dependency on high-resolution geomagnetic indices. The obtained dependencies regarding MIT climatology and occurrence probability can be used for MIT model validation and the development of new MIT models. Our results confirm and complement previous studies about the MIT dependency on solar activity, season, diurnal variation, and geomagnetic indices.

Item URL in elib:https://elib.dlr.de/188955/
Document Type:Conference or Workshop Item (Speech)
Title:Evaluation of the Mid-Latitude Ionospheric trough Using GRACE Data
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lubyk, KaterynaKateryna.Lubyk (at) dlr.deUNSPECIFIED
Hoque, Mohammed MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Stolle, Claudiacstolle (at) iap-kborn.deUNSPECIFIED
Date:September 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:main ionospheric trough; Northern and Southern Hemispheres; high and low solar activity; trough detection; GRACE satellite mission
Event Title:IWGI 2022
Event Location:Neustrelitz, Germany
Event Type:international Conference
Event Dates:26-28 Sep 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Ionosphere
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Space Weather Observation
Deposited By: Lubyk, Kateryna
Deposited On:14 Oct 2022 12:18
Last Modified:14 Oct 2022 12:18

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