A review of results of the international ionospheric Doppler sounder network

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F17%3A00478392" target="_blank" >RIV/68378289:_____/17:00478392 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.asr.2017.01.032" target="_blank" >http://dx.doi.org/10.1016/j.asr.2017.01.032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.asr.2017.01.032" target="_blank" >10.1016/j.asr.2017.01.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A review of results of the international ionospheric Doppler sounder network

Popis výsledku v původním jazyce

This paper summarizes main recent results reached by the Czech-lead international network of ionospheric Doppler shift sounders.nThe network consists of Doppler sounders in the western half of Czechia (5 measuring paths, 3 frequencies with central receivers in Prague),nnorthern Taiwan (3 transmitters, two separated receivers, 1 frequency), and two similar systems (3 measuring paths with 1 receivernand 1 frequency) in Tucuman (north-western Argentina) and Hermanus (the southernmost South Africa). Main areas of research havenbeen: (1) propagation of gravity waves (2) ionospheric effects of earthquakes (3) low latitude/equatorial phenomena (4) ionosphericnresponse to strong meteorological phenomena (5) effects of solar flares, geomagnetic activity and geomagnetic micropulsations. Mainnresults: (1) Theoretically expected dominance of gravity wave propagation against wind has been confirmed. (2) Impact of a train of seismicnwaves (P, S, SS, Rayleigh) generated by the Tohoku 2011 M9.0 earthquake was registered in the ionosphere over the Czech Republicnas long-period infrasound at the distance of about 9000 km from epicenter. (3) Analysis of ionospheric infrasound excited by the Nepaln2015 M7.8 earthquake observed by the Czech and Taiwan Doppler sounders showed that the intensity of ionospheric signal is signifi-ncantly height and latitude dependent. Air/plasma compression has to be considered to compute air particle velocities from the observednDoppler shift. (4) Nonlinear effects result in formation of N-shaped pulse disturbance in the upper atmosphere/ionosphere above strongnearthquakes as was documented by the example of the M8.3 Illapel 2016 earthquake. (5) Spread F structures observed by Doppler soundersnin Tucuman and Taiwan (both under the crest of equatorial ionization anomaly) provide results consistent with S4 scintillation datanand with previous optical, GPS and satellite

Název v anglickém jazyce

A review of results of the international ionospheric Doppler sounder network

Popis výsledku anglicky

This paper summarizes main recent results reached by the Czech-lead international network of ionospheric Doppler shift sounders.nThe network consists of Doppler sounders in the western half of Czechia (5 measuring paths, 3 frequencies with central receivers in Prague),nnorthern Taiwan (3 transmitters, two separated receivers, 1 frequency), and two similar systems (3 measuring paths with 1 receivernand 1 frequency) in Tucuman (north-western Argentina) and Hermanus (the southernmost South Africa). Main areas of research havenbeen: (1) propagation of gravity waves (2) ionospheric effects of earthquakes (3) low latitude/equatorial phenomena (4) ionosphericnresponse to strong meteorological phenomena (5) effects of solar flares, geomagnetic activity and geomagnetic micropulsations. Mainnresults: (1) Theoretically expected dominance of gravity wave propagation against wind has been confirmed. (2) Impact of a train of seismicnwaves (P, S, SS, Rayleigh) generated by the Tohoku 2011 M9.0 earthquake was registered in the ionosphere over the Czech Republicnas long-period infrasound at the distance of about 9000 km from epicenter. (3) Analysis of ionospheric infrasound excited by the Nepaln2015 M7.8 earthquake observed by the Czech and Taiwan Doppler sounders showed that the intensity of ionospheric signal is signifi-ncantly height and latitude dependent. Air/plasma compression has to be considered to compute air particle velocities from the observednDoppler shift. (4) Nonlinear effects result in formation of N-shaped pulse disturbance in the upper atmosphere/ionosphere above strongnearthquakes as was documented by the example of the M8.3 Illapel 2016 earthquake. (5) Spread F structures observed by Doppler soundersnin Tucuman and Taiwan (both under the crest of equatorial ionization anomaly) provide results consistent with S4 scintillation datanand with previous optical, GPS and satellite

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/GC15-07281J" target="_blank" >GC15-07281J: Jevy spojující neutrální a ionizovanou atmosféru</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

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

—

Svazek periodika

60

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

1629-1643

Kód UT WoS článku

000412620000006

EID výsledku v databázi Scopus

2-s2.0-85012280115