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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Advances in Space Research

ISSN

0273-1177

e-ISSN

1879-1948

Volume of the periodical

76

Issue of the periodical within the volume

4

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

2315-2327

UT code for WoS article

001539015800026

EID of the result in the Scopus database

2-s2.0-105007687837