scholarly journals Disappearance of equatorial plasma bubble after interaction with mid-latitude medium-scale traveling ionospheric disturbance

2012 ◽  
Vol 39 (14) ◽  
pp. n/a-n/a ◽  
Author(s):  
Y. Otsuka ◽  
K. Shiokawa ◽  
T. Ogawa
Keyword(s):  
Ionospheric Disturbance ◽  
Plasma Bubble ◽  
Medium Scale ◽  
Equatorial Plasma Bubble

A Simulation of Equatorial Plasma Bubble Signatures on the 016300 Å nightglow Meridional Profile Over Brazilian Low Latitude

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Y. Nakamura ◽  
I.H.A. Sobral ◽  
M.A. Abdu
Keyword(s):  
Plasma Bubble ◽  
Low Latitude ◽  
Equatorial Plasma Bubble ◽  
Meridional Profile

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scholarly journals Investigation of Low Latitude Spread-F Triggered by Nighttime Medium-Scale Traveling Ionospheric Disturbance

2021 ◽  
Vol 13 (5) ◽  
pp. 945
Author(s):  
Zhongxin Deng ◽  
Rui Wang ◽  
Yi Liu ◽  
Tong Xu ◽  
Zhuangkai Wang ◽  
...  
Keyword(s):  
Ionospheric Disturbance ◽  
Phase Speed ◽  
Morphological Processing ◽  
Wave Number ◽  
Occurrence Rate ◽  
Electron Content ◽  
Low Latitude ◽  
Total Electron ◽  
Medium Scale ◽  
Spread F

In the current study, we investigated the mechanism of medium-scale traveling ionospheric disturbance (MSTID) triggering spread-F in the low latitude ionosphere using ionosonde observation and Global Navigation Satellite System-Total Electron Content (GNSS-TEC) measurement. We use a series of morphological processing techniques applied to ionograms to retrieve the O-wave traces automatically. The maximum entropy method (MEM) was also utilized to obtain the propagation parameters of MSTID. Although it is widely acknowledged that MSTID is normally accompanied by polarization electric fields which can trigger Rayleigh–Taylor (RT) instability and consequently excite spread-F, our statistical analysis of 13 months of MSTID and spread-F occurrence showed that there is an inverse seasonal occurrence rate between MSTID and spread-F. Thus, we assert that only MSTID with certain properties can trigger spread-F occurrence. We also note that the MSTID at night has a high possibility to trigger spread-F. We assume that this tendency is consistent with the fact that the polarization electric field caused by MSTID is generally the main source of post-midnight F-layer instability. Moreover, after thorough investigation over the azimuth, phase speed, main frequency, and wave number over the South America region, we found that the spread-F has a tendency to be triggered by nighttime MSTID, which is generally characterized by larger ΔTEC amplitudes.

Study of equatorial plasma bubble dynamics using GHz scintillation observations in the Indian sector

1992 ◽  
Vol 54 (7-8) ◽  
pp. 893-901 ◽  
Author(s):  
R.S Dabas ◽  
P.K Banerjee ◽  
S Bhattacharya ◽  
B.M Reddy ◽  
J Singh
Keyword(s):  
Bubble Dynamics ◽  
Plasma Bubble ◽  
Equatorial Plasma Bubble ◽  
Indian Sector

Research Progresses of Ionospheric Plasma Irregularities from the Ground–Based Airglow Network in China

2021 ◽  
Author(s):  
Jiyao Xu ◽  
Wei Yuan ◽  
Kun Wu ◽  
Longchang Sun
Keyword(s):  
Ionospheric Plasma ◽  
Ionospheric Disturbance ◽  
Geomagnetic Latitude ◽  
Extreme Weather Events ◽  
Plasma Bubble ◽  
Low Latitude ◽  
Plasma Irregularities ◽  
Middle Latitudes ◽  
Weather Events ◽  
New Phenomena

<p>China, from north to south, spans from the middle latitudes to the low latitude both in geographic latitude and geomagnetic latitude. And China has a variety of topography environment, which including high lands, plains, seas, and long coasts. To better understand topographic and latitudinal effects on the mesosphere and thermosphere and features of ionospheric plasma irregularities at various latitudes in China, we have established a ground-based airglow network in China gradually since 2010, which consists of 16 stations. This network almost cover China, which focuses on two airglow layers: the OI (~250 km) and OH (~87 km) airglow layers. The observations from OI airglow layers provide convenience to systematically investigate the morphologic feature and evolution of ionospheric plasma irregularities over China. Based on the airglow network observations, we mainly report some important research results of ionospheric plasma irregularities in recent years. These findings include (1) statistical characteristic of equatorial plasma bubble (EPB) over China, (2) the influences of severe extreme weather events on the ionosphere, (3) interaction between medium-scale traveling ionospheric disturbance (MSTIDs) and ionospheric irregularity, and (4) some new phenomena of ionospheric irregularities.</p>

scholarly journals On the Assessment of Daily Equatorial Plasma Bubble Occurrence Modeling and Forecasting

Space Weather ◽  
2020 ◽  
Vol 18 (9) ◽  
Author(s):  
B. A. Carter ◽  
J. L. Currie ◽  
T. Dao ◽  
E. Yizengaw ◽  
J. Retterer ◽  
...  
Keyword(s):  
Plasma Bubble ◽  
Modeling And Forecasting ◽  
Equatorial Plasma Bubble

A Numerical Study on the 3‐D Approach of the Equatorial Plasma Bubble Seeded by the Prereversal Vertical Drift

2019 ◽  
Vol 124 (6) ◽  
pp. 4539-4555 ◽  
Author(s):  
J. Sousasantos ◽  
E. A. Kherani ◽  
J. H. A. Sobral ◽  
M. A. Abdu ◽  
A. O. Moraes ◽  
...  
Keyword(s):  
Numerical Study ◽  
Plasma Bubble ◽  
Vertical Drift ◽  
Equatorial Plasma Bubble
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