Results 21 to 30 of about 1,500,171 (192)

A review on the numerical simulation of equatorial plasma bubbles toward scintillation evaluation and forecasting

Progress in Earth and Planetary Science, 2017
Equatorial plasma bubbles (EPBs) have been a longstanding and increasingly important subject because they cause severe scintillations in radio waves from Global Navigation Satellite System satellites.
Tatsuhiro Yokoyama
doaj   +2 more sources

A system science perspective of the drivers of equatorial plasma bubbles

Frontiers in Astronomy and Space Sciences, 2023
The complex drivers of equatorial plasma bubbles and resulting scintillation requires a system science approach spanning the Magnetosphere-Ionosphere-Thermosphere-Mesosphere disciplines.
Jeff Klenzing, Alexa J. Halford, Guiping Liu, Guiping Liu, Jonathon M. Smith, Jonathon M. Smith, Yongliang Zhang, Kate Zawdie, Naomi Maruyama, Rob Pfaff, Rebecca L. Bishop   +10 more
doaj   +2 more sources

F-Region electron density irregularities during the development of equatorial plasma bubbles [PDF]

Geofísica Internacional, 2000
The height variation of the ionospheric electron density was measured with rocket-borne electron density probes in two campaigns conducted from Alcantara (2.31°S; 35.2°W), Brazil. A Black Brant X sounding rocket was launched on 14 October 1994 at 1955hrs
P. Muralikrishna
doaj   +1 more source

Equatorial Plasma Bubbles Observed over Tenerife

Equatorial plasma bubbles consist of ionospheric density irregularities at different scales, therefore multi-instrument observations are important to fully understand their structures.
Sato, Hiroatsu, Geach, Christopher Peter, Gauthier, Arthur, Rahrah, Yassine   +3 more
openaire   +2 more sources

Multipoint Observations of Equatorial Plasma Bubbles [PDF]

Journal of Geophysical Research: Space Physics, 2003
This paper compares evening sector measurements by the Jicamarca unattended long‐term studies of the ionosphere and atmosphere (JULIA) radar, the Ancon scintillation monitor, and plasma density sensors on Defense Meteorological Satellite Program (DMSP) satellites. During more than half of the 110 nights of JULIA operations in 1998 and 1999, backscatter
L. C. Gentile, J. S. Machuzak, C. E. Valladares, C. Y. Huang, W. J. Burke   +4 more
openaire   +2 more sources

Numerical simulation of the equatorial plasma bubble: the effect of seeding by the vertical winds and random background noise perturbations

Frontiers in Astronomy and Space Sciences, 2023
A wide variety of small-amplitude waves widely exist in the ionosphere and have significant effects on the evolution of equatorial plasma bubbles. In this paper, we simulated equatorial plasma bubbles (EPB) seeded by vertical neutral wind perturbations ...
Yunzhou Zhu, Qiong Tang, Qiong Tang, Tong Xu, Yi Liu, Chen Zhou, Zhongxin Deng, Yuqiang Zhang, Zhengyu Zhao, Fengsi Wei, Bin Xu, Shuji Sun   +11 more
doaj   +1 more source

Occurrence climatology of equatorial plasma bubbles derived using FormoSat-3 ∕ COSMIC GPS radio occultation data [PDF]

Annales Geophysicae, 2020
The Global Positioning System – Radio Occultation (GPS-RO) observations from FormoSat-3 ∕ COSMIC are used to comprehend the global distribution of equatorial plasma bubbles which are characterized by depletion regions of plasma in the F ...
A. Kepkar, A. Kepkar, C. Arras, J. Wickert, J. Wickert, H. Schuh, H. Schuh, M. Alizadeh, M. Alizadeh, L.-C. Tsai   +9 more
doaj   +1 more source

Semimonthly oscillation observed in the start times of equatorial plasma bubbles [PDF]

Annales Geophysicae, 2020
Using airglow data from an all-sky imager deployed at São João do Cariri (7.4∘ S, 36.5∘ W), the start times of equatorial plasma bubbles was studied in order to investigate the day-to-day variability of this phenomenon.
I. Paulino, A. R. Paulino, R. Y. C. Cueva, E. Agyei-Yeboah, R. A. Buriti, H. Takahashi, C. M. Wrasse, Â. M. Santos, A. Fragoso de Medeiros, I. S. Batista   +9 more
doaj   +1 more source

Cluster and Double Star multipoint observations of a plasma bubble [PDF]

, 2009
Depleted flux tubes, or plasma bubbles, are one possible explanation of bursty bulk flows, which are transient high speed flows thought to be responsible for a large proportion of flux transport in the magnetotail. Here we report observations of one such
Lahiff, A. D., Volwerk, M., Pu, Z., Lester, M., Kistler, L. M., Lucek, E., Mouikis, C., Grocott, A., Lui, A. T. Y., Shi, J., Fazakerley, A. N., Walsh, A. P., Shen, C., Dandouras, I., Taylor, M. G. G. T., Zhang, T. L., Dunlop, M. W.   +16 more
core   +6 more sources

Effect of equatorial plasma bubbles on the thermosphere [PDF]

Journal of Geophysical Research: Space Physics, 2003
Equatorial plasma bubbles are common in the low‐latitude ionosphere at night, particularly at solar maximum. The bubbles form on the bottomside of the F‐layer as a result of the Rayleigh‐Taylor instability and then drift upwards and to the east. As the bubbles evolve, the entire north‐south extent of the plasma flux tubes in the bubbles becomes ...
R. W. Schunk, H. G. Demars
openaire   +1 more source