A review of results of the international ionospheric Doppler sounder network

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

A review of results of the international ionospheric Doppler sounder network

Original language description

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

Czech name

—

Czech description

—

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

<a href="/en/project/GC15-07281J" target="_blank" >GC15-07281J: Phenomena coupling the neutral and ionized atmosphere</a><br>

Continuities

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

Publication year

2017

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

—

Volume of the periodical

60

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

1629-1643

UT code for WoS article

000412620000006

EID of the result in the Scopus database

2-s2.0-85012280115