Observations of traveling ionospheric disturbances driven by gravity waves from sources in the upper and lower atmosphere

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F25%3A00639147" target="_blank" >RIV/68378289:_____/25:00639147 - isvavai.cz</a>

Výsledek na webu

<a href="https://angeo.copernicus.org/articles/43/511/2025/" target="_blank" >https://angeo.copernicus.org/articles/43/511/2025/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/angeo-43-511-2025" target="_blank" >10.5194/angeo-43-511-2025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Observations of traveling ionospheric disturbances driven by gravity waves from sources in the upper and lower atmosphere

Popis výsledku v původním jazyce

The observed traveling ionospheric disturbances (TIDs) are attributed to atmospheric gravity waves generated by auroral sources in the lower thermosphere or gravity waves generated in the troposphere by midlatitude weather systems. TIDs are observed by the Poker Flat Incoherent Scatter Radar (PFISR), the Super Dual Auroral Radar Network (SuperDARN), multipoint and multifrequency continuous Doppler sounders, and Global Navigation Satellite System (GNSS) receivers using the total electron content (TEC) mapping technique. At high latitudes, the solar wind-magnetosphere-ionosphere-thermosphere coupling modulates the dayside ionospheric convection and currents, the source of the equatorward-propagating TIDs. The horizontal equivalent ionospheric currents are estimated from the ground-based magnetometer data using an inversion technique. At midlatitudes, the eastward- to southeastward-propagating medium-scale TIDs that were observed by the high-frequency (HF) Doppler sounding system, as well as in the detrended TEC, are attributed to gravity waves that are generated by geostrophic adjustment processes and shear instability in the intensifying low-pressure systems and are identified in the stratosphere using the ERA5 meteorological reanalysis.

Název v anglickém jazyce

Observations of traveling ionospheric disturbances driven by gravity waves from sources in the upper and lower atmosphere

Popis výsledku anglicky

The observed traveling ionospheric disturbances (TIDs) are attributed to atmospheric gravity waves generated by auroral sources in the lower thermosphere or gravity waves generated in the troposphere by midlatitude weather systems. TIDs are observed by the Poker Flat Incoherent Scatter Radar (PFISR), the Super Dual Auroral Radar Network (SuperDARN), multipoint and multifrequency continuous Doppler sounders, and Global Navigation Satellite System (GNSS) receivers using the total electron content (TEC) mapping technique. At high latitudes, the solar wind-magnetosphere-ionosphere-thermosphere coupling modulates the dayside ionospheric convection and currents, the source of the equatorward-propagating TIDs. The horizontal equivalent ionospheric currents are estimated from the ground-based magnetometer data using an inversion technique. At midlatitudes, the eastward- to southeastward-propagating medium-scale TIDs that were observed by the high-frequency (HF) Doppler sounding system, as well as in the detrended TEC, are attributed to gravity waves that are generated by geostrophic adjustment processes and shear instability in the intensifying low-pressure systems and are identified in the stratosphere using the ERA5 meteorological reanalysis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

<a href="/cs/project/EH22_008%2F0004605" target="_blank" >EH22_008/0004605: Přírodní a antropogenní georizika</a><br>

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

Annales Geophysicae

ISSN

0992-7689

e-ISSN

1432-0576

Svazek periodika

43

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

24

Strana od-do

511-534

Kód UT WoS článku

001571706800001

EID výsledku v databázi Scopus

2-s2.0-105016818482