Interhemispheric comparison of the ionosphere and plasmasphere total electron content using GPS, radio occultation and ionosonde observations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F21%3A00545040" target="_blank" >RIV/68378289:_____/21:00545040 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0273117721003756" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0273117721003756</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.asr.2021.05.004" target="_blank" >10.1016/j.asr.2021.05.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interhemispheric comparison of the ionosphere and plasmasphere total electron content using GPS, radio occultation and ionosonde observations

Popis výsledku v původním jazyce

We present a comparison of the ionosphere and plasmasphere total electron content over nearly geomagnetic conjugate locations Pruhonice (50.0 degrees N, 14.6 degrees E: 45.7 degrees N geomagnetic), Czech Republic and Hermanus (34.4 degrees S, 19.2 degrees E: 42.3 degrees S geomagnetic), South Africa during the low solar activity period of 2009-2010. The bottomside ionosphere, topside ionosphere and plasmaspheric contributions to the total electron content (TEC) derived from the Global Positioning System (GPS) observations are separately estimated from ionosonde and Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation data. Over the ionosonde location, COSMIC electron density (Ne) profiles are considered when the maximum height of the F2 layer (hmF2) lies within spatial resolutions of 4.5 degrees x 4.5 degrees in latitudes/longitudes, and the Ne profile does not exceed 10 degrees. For the first time, we have statistically quantified the topside ionosphere contribution to GPS TEC based on radio occultation data and revealed that it accounts for about 50% of the TEC during low solar activity periods. Finally, we have demonstrated that the determination of electron content contribution at different altitudes is important for understanding ionospheric storm mechanisms during space weather events especially geomagnetic storms.

Název v anglickém jazyce

Interhemispheric comparison of the ionosphere and plasmasphere total electron content using GPS, radio occultation and ionosonde observations

Popis výsledku anglicky

We present a comparison of the ionosphere and plasmasphere total electron content over nearly geomagnetic conjugate locations Pruhonice (50.0 degrees N, 14.6 degrees E: 45.7 degrees N geomagnetic), Czech Republic and Hermanus (34.4 degrees S, 19.2 degrees E: 42.3 degrees S geomagnetic), South Africa during the low solar activity period of 2009-2010. The bottomside ionosphere, topside ionosphere and plasmaspheric contributions to the total electron content (TEC) derived from the Global Positioning System (GPS) observations are separately estimated from ionosonde and Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation data. Over the ionosonde location, COSMIC electron density (Ne) profiles are considered when the maximum height of the F2 layer (hmF2) lies within spatial resolutions of 4.5 degrees x 4.5 degrees in latitudes/longitudes, and the Ne profile does not exceed 10 degrees. For the first time, we have statistically quantified the topside ionosphere contribution to GPS TEC based on radio occultation data and revealed that it accounts for about 50% of the TEC during low solar activity periods. Finally, we have demonstrated that the determination of electron content contribution at different altitudes is important for understanding ionospheric storm mechanisms during space weather events especially geomagnetic storms.

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

2021

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

68

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

2339-2353

Kód UT WoS článku

000681375300008

EID výsledku v databázi Scopus

2-s2.0-85107138550