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Preface to the Special Issue on recent advances in the study of Equatorial Plasma Bubbles and Ionospheric Scintillation

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Earth and Planetary Physics 2021年第5期5卷 365-367页

作者： Yuichi Otsuka luca spogli S.Tulasi Ram GuoZhu Li Institute for Space-Earth Environmental Research Nagoya UniversityJapan Istituto Nazionale di Geofisicae Vulcanologia Italy Indian Institute of Geomagnetism India Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China

The 2 nd Equatorial Plasma Bubble(EPB)workshop,funded by the Institute of Geology and Geophysics,Chinese Academy of Sciences,and the National Natural Science Foundation of China,took place in Beijing,China during September 13–15,2019.The EPB workshop belongs to a conference series that began in 2016 in Nagoya,Japan at the Institute for Space-Earth Environmental Research,Nagoya University,resulting in a special issue of Progress in Earth and Planetary Science that focused on EPBs.The main goal of the series is to organize in-depth discussion by scientists working on ionospheric irregularities,and solve the scientific challenges in EPB and ionospheric scintillation forecasting.The 2 nd EPB workshop gathered almost 60 scientists from seven countries.A total of 20 invited and contributing papers focusing on ionospheric irregularities and scintillations were presented.Here we briefly comment on 10 papers included in this special issue.

关键词： equatorial plasma bubble ionospheric irregularity and scintillation plasma instability 2nd EPB workshop

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A measure of ionospheric irregularities:zonal velocity and its implications for L-band scintillation at low-latitudes

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Earth and Planetary Physics 2021年第5期5卷 450-461页

作者： Claudio Cesaroni luca spogli Giorgiana De Franceschi Juliana Garrido Damaceno Marcin Grzesiak Bruno Vani Joao Francisco Galera Monico Vincenzo Romano Lucilla Alfonsi Massimo Cafaro Istituto Nazionale di Geofisica e Vulcanologia Italy SpacEarth Technology Italy Space Research Centre of the Polish Academy of Sciences Poland Instituto Federal de Educação Ciência e Tecnologia de São PauloBrazil Universidade Estadual Paulista“Júlio de Mesquita Filho” Brazil University of Salento Italy

We estimate the zonal drift velocity of small-scale ionospheric irregularities at low latitude by leveraging the spaced-receivers technique applied to two GNSS receivers for scintillation monitoring installed along the magnetic parallel passing in Presidente Prudente(Brazil,magnetic latitude 12.8°S).The investigated ionospheric sector is ideal to study small-scale irregularities,being located close to the expected position of the southern crest of the equatorial ionospheric anomaly.The measurement campaign took place between September 2013 and February 2014,i.***.equinox and summer solstice seasons under solar maximum,during which the probability of formation of small-scale irregularities is expected to maximize.We found that the hourly average of the velocity increases up to 135 m/s right after the local sunset at ionospheric altitudes and then smoothly decreases in the next hours.Such measurements are in agreement with independent estimations of the velocity made by the Incoherent Scatter Radar located at the Jicamarca Radio Observatory(magnetic latitude 0.1°N),by the Boa Vista Ionosonde(magnetic latitude 12.0°N),and by applying a recently-developed empirical regional short-term forecasting model.Additionally,we investigated the relationship with the percentage occurrence of amplitude scintillation;we report that it is exponentially dependent on the zonal velocity of the irregularities that cause it.

关键词： ionospheric irregularities GNSS scintillation plasma drift velocity low-latitude ionosphere spaced receivers Equatorial Plasma Bubbles

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The Istituto Nazionale di Geofisica e Vulcanologia Data Management System for the Arctic Sciences

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环境科学与工程：B 2016年第11期5卷 549-556页

作者： Umberto Apponi Vincenzo Romano Giorgiana De Franceschi Paola Del Carlo Ilaria Isola Patrizia Macri Giovanni Muscari Leonardo Sagnotti luca spogli Stefano Urbini Spacearth Technology S.r.l. Via di Vigna Murata 605 00143 Rome Italy lstituto Nazionale di Geofisica e Vulcanologia Environment Department Via di Vigna Murata 605 00148-Rome Italy Istituto Nazionale di Geofisica e Vulcanologia Volcanoes Department Via della Faggiola 32-56126 Pisa Italy

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