Ionosphere-thermosphere response to the January 14, 2022 moderate storm: ICON satellite observations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F25%3A00636682" target="_blank" >RIV/68378289:_____/25:00636682 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0273117725005733?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0273117725005733?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.asr.2025.05.088" target="_blank" >10.1016/j.asr.2025.05.088</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ionosphere-thermosphere response to the January 14, 2022 moderate storm: ICON satellite observations

Popis výsledku v původním jazyce

We present a response of the ionized as well as neutral components of Earth’s upper atmosphere to the 14th January 2022 moderate geomagnetic storm using ICON satellite observations. Global-scale analysis of ion density and thermospheric wind speed as a function of latitude and longitude covering 160–600 km altitude range provides descriptive illustrations of storm-time responses of different layers of the ionosphere. The storm induced disturbances at almost all altitudes considered in the study and the Hunga eruption caused high wind variations at lower altitudes (160–200 km). We also considered the effects of a co-incident Hunga Tonga volcanic eruption, while our focus remains on the ionosphere-thermosphere responses to the storm. Our analyses depicted strong equatorial and low latitude ion density enhancement on 14-01-2022 (12:01–23:59 LT) across almost all longitudes, which corresponds to the times after the sudden storm commencement (SSC). Compared to 13–14 January 2022 (00:00–12:00 LT), a high ion density is observed on 15-01-2022 (00:00–12:00 LT), especially over 0°-200° E longitudes. This ion density enhancement persists on 16-01-2022 (at all times of the day) with a similar scenario seen on 15-01-2022. Storm-enhanced wind speed irregularity decreases relatively with an increase in altitude. Ion density is higher in 12:01–23:59 LT than in 00:00–12:00 LT during all days considered. On 15-01-2022 (12:01–23:59 LT), fluctuating structure of ion density is observed in 100°–200°E longitudes over the dip equator region which was found to be associated with the Hunga eruption. Generally, the moderate geomagnetic storm caused a positive ionospheric storm, which enhanced ion density and triggered turbulence in the wind dynamics.

Název v anglickém jazyce

Ionosphere-thermosphere response to the January 14, 2022 moderate storm: ICON satellite observations

Popis výsledku anglicky

We present a response of the ionized as well as neutral components of Earth’s upper atmosphere to the 14th January 2022 moderate geomagnetic storm using ICON satellite observations. Global-scale analysis of ion density and thermospheric wind speed as a function of latitude and longitude covering 160–600 km altitude range provides descriptive illustrations of storm-time responses of different layers of the ionosphere. The storm induced disturbances at almost all altitudes considered in the study and the Hunga eruption caused high wind variations at lower altitudes (160–200 km). We also considered the effects of a co-incident Hunga Tonga volcanic eruption, while our focus remains on the ionosphere-thermosphere responses to the storm. Our analyses depicted strong equatorial and low latitude ion density enhancement on 14-01-2022 (12:01–23:59 LT) across almost all longitudes, which corresponds to the times after the sudden storm commencement (SSC). Compared to 13–14 January 2022 (00:00–12:00 LT), a high ion density is observed on 15-01-2022 (00:00–12:00 LT), especially over 0°-200° E longitudes. This ion density enhancement persists on 16-01-2022 (at all times of the day) with a similar scenario seen on 15-01-2022. Storm-enhanced wind speed irregularity decreases relatively with an increase in altitude. Ion density is higher in 12:01–23:59 LT than in 00:00–12:00 LT during all days considered. On 15-01-2022 (12:01–23:59 LT), fluctuating structure of ion density is observed in 100°–200°E longitudes over the dip equator region which was found to be associated with the Hunga eruption. Generally, the moderate geomagnetic storm caused a positive ionospheric storm, which enhanced ion density and triggered turbulence in the wind dynamics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advances in Space Research

ISSN

0273-1177

e-ISSN

1879-1948

Svazek periodika

76

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

2315-2327

Kód UT WoS článku

001539015800026

EID výsledku v databázi Scopus

2-s2.0-105007687837