Journal ArticleDOI
Theoretical and experimental zonal drift velocities of the ionospheric plasma bubbles over the Brazilian region
Daniela C. S. Arruda,J. H. A. Sobral,M. A. Abdu,Vivian M. Castilho,H. Takahashi,Amauri Fragoso de Medeiros,Ricardo Buriti +6 more
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In this article, equatorial ionospheric plasma bubble zonal drift velocity observations and their comparison with model calculations were performed taking into account flux-tube integrated Pedersen conductivity and conductivity weighted neutral zonal winds.About:
This article is published in Advances in Space Research.The article was published on 2006-01-01. It has received 34 citations till now.read more
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Journal ArticleDOI
Simultaneous observation of ionospheric plasma bubbles and mesospheric gravity waves during the SpreadFEx Campaign
H. Takahashi,Michael J. Taylor,Pierre-Dominique Pautet,Amauri Fragoso de Medeiros,Delano Gobbi,Cristiano Max Wrasse,Joaquim Fechine,M. A. Abdu,Inez S. Batista,Eurico R. de Paula,J. H. A. Sobral,Daniela C. S. Arruda,Sharon L. Vadas,F. S. Sabbas,David C. Fritts +14 more
TL;DR: In this article, two airglow CCD imagers, located at Cariri (7.4° S, 36.5° W, geomag. 11° S) and near Brasilia (14.8°S, 47.6°W, geOMag. 10°S) were operated simultaneously and measured the equatorial ionospheric bubbles and their time evolution by monitoring the airglove OI 6300 intensity depletions.
Journal ArticleDOI
Characteristics of mesospheric gravity waves near the magnetic equator, Brazil, during the SpreadFEx campaign
Michael J. Taylor,Pierre-Dominique Pautet,Amauri Fragoso de Medeiros,Ricardo Buriti,Joaquim Fechine,David C. Fritts,Sharon L. Vadas,H. Takahashi,F. T. São Sabbas +8 more
TL;DR: In this article, optical and radio measurements were made from Brazil to investigate the occurrence and properties of equatorial Spread F, and to characterize the regional mesospheric grav-ity wave field.
Journal ArticleDOI
Ionospheric zonal velocities at conjugate points over Brazil during the COPEX campaign: Experimental observations and theoretical validations
J. H. A. Sobral,M. A. Abdu,Todd Pedersen,Vivian M. Castilho,Daniela C. S. Arruda,Marcio T. A. H. Muella,Inez S. Batista,M. Mascarenhas,E. R. de Paula,Paul M. Kintner,E. A. Kherani,Amauri Fragoso de Medeiros,Ricardo Buriti,H. Takahashi,Nelson Jorge Schuch,Clezio Marcos Denardini,C.J. Zamlutti,A. A. Pimenta,J.R. de Souza,F. Bertoni +19 more
TL;DR: In this article, the velocities of large-scale ionospheric plasma depletions over two conjugate stations inferred from OI 630 nm airglow all-sky images obtained during the Conjugate Point Equatorial Experiment (COPEX) campaign carried out in Brazil between October and November 2002 were analyzed.
Journal ArticleDOI
Characteristics of equatorial plasma bubbles observed by TEC map based on ground-based GNSS receivers over South America
TL;DR: In this paper, a ground-based network of GNSS receivers has been used to monitor equatorial plasmas bubbles (EPBs) by mapping the total electron content (TEC map).
Journal ArticleDOI
A statistical analysis of equatorial plasma bubble structures based on an all-sky airglow imager network in China
TL;DR: In this article, the authors investigated the statistical features of equatorial plasma bubbles (EPBs) using airglow images from 2012 to 2014 from a ground-based network of four imagers in the equatorial region of China.
References
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Journal ArticleDOI
MSIS‐86 Thermospheric Model
TL;DR: The MSIS-86 empirical model of thermospheric temperature, density and composition as discussed by the authors uses new temperature and composition data from the Dynamics Explorer satellite to improve the representation of polar region morphology over that in theMSIS-83 model.
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Radar observations of F region equatorial irregularities
Ronald F. Woodman,Cesar La Hoz +1 more
TL;DR: In this paper, the results of backscatter observations of the F region irregularities made with the large 50MHz radar at Jicamarca, Peru, during a few days of observations are presented.
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Average vertical and zonal F region plasma drifts over Jicamarca
TL;DR: The seasonal average of the equatorial F region vertical and zonal plasma drifts were determined using extensive incoherent scatter radar observations from Jicamarca during 1968-1988.
Journal ArticleDOI
Nonlinear equatorial spread F: The effect of neutral winds and background Pedersen conductivity
TL;DR: In this paper, a simple model of the interaction of the equatorial ionosphere with the eastward F region neutral wind in the presence of evolving spread F bubbles is given, where the upper portions of bubbles will take on a westward tilt, while the lower portions will tilt eastward, giving rise to the 'fishtails' and 'C's' observed by coherent backscatter radar measurements of fieldaligned small-scale irregularities.
Journal ArticleDOI
Theory for modeling the equatorial evening ionosphere and the origin of the shear in the horizontal plasma flow
TL;DR: In this paper, the authors developed equations describing the time evolution of the equatorial ionosphere using flux tube integrated and flux tube weighted quantities, which model the chemistry, dynamics, and electrodynamics of the EI. The resulting two-dimensional set of equations can be used to investigate equatorial electric fields neglecting small-scale phenomena.