Results 11 to 20 of about 376,177 (258)
Variations in the Equatorial Ionospheric F Region Current during the 2022 Tonga Volcanic Eruption
Remote Sensing, 2022 In this work, the temporal variations in the ionospheric F region current (FRC) during the 2022 volcanic eruption in Tonga are reported for the first time.
Hui Wang, Hao Xia, Kedeng Zhang
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Climatology of TEC Longitudinal Difference in Middle Latitudes of East Asia
Remote Sensing, 2022 In this paper, a statistical analysis of the diurnal, seasonal and solar cycle variation in the TEC longitudinal difference in midlatitudes of East Asia is presented using CODE GIMs data in 2015–2019. Moreover, the empirical neutral wind model HWM-14 and
Xingxin Sun +11 more
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Earth and Planetary Physics, 2021 This paper briefly reviews ionospheric irregularities that occur in the E and F regions at mid-latitudes. Sporadic E (ES) is a common ionospheric irregularity phenomenon that is first noticed in the E layer.
Yi Liu +6 more
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Thermospheric neutral winds over Abuja, Nigeria [PDF]
International Journal of Physical Sciences, 2019 We present nighttime variation of thermospheric winds estimated from the Fabry-Perot interferometer (FPI) which was recently deployed at Abuja in Nigeria. These results apply to the thermosphere region around 250 km and were obtained during the period of weak solar activity with solar flux values generally below 70 s.f.u.
W. T. Sivla +4 more
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Earth and Planetary Physics, 2021 Previous studies have proposed that both the thermospheric neutral wind and the equatorial electrojet (EEJ) near sunset play important roles in the pre-reversal enhancement (PRE) mechanism.
P. Abadi +7 more
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Spatial and temporal correlations of thermospheric zonal winds from GOCE satellite observations
Frontiers in Astronomy and Space Sciences, 2023 Winds in the thermosphere play an important role in the transport of momentum and energy in the upper atmosphere and affect the composition, dynamics and morphology of the ionospheric plasma.
Ivana Molina, Ludger Scherliess
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Wind-tunnel simulations of wind-turbine arrays in neutral and non-neutral winds
Journal of Physics: Conference Series, 2014 Wind tunnel simulations have been made of a neutral atmospheric boundary layer (ABL), a stable layer and an unstable layer, typical of offshore conditions, in order to better understand wake development and turbine-wake interactions. Measurements of the wake of a single turbine showed a slower reduction of the velocity deficit for the stable case, and ...
Hancock, PE, Farr, TD
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Longitudinal variability of thermospheric zonal winds near dawn and dusk
Frontiers in Astronomy and Space Sciences, 2023 Understanding the morphology and dynamics of the thermosphere is key to understanding the Earth’s upper atmosphere as a whole. Thermospheric winds play an important role in this process by transporting momentum and energy and affecting the composition ...
Ivana Molina, Ludger Scherliess
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The effect of subauroral polarization streams on the mid-latitude thermospheric disturbance neutral winds: a universal time effect [PDF]
Annales Geophysicae, 2018 The temporal and spatial variations in thermospheric neutral winds at an altitude of 400 km in response to subauroral polarization streams (SAPS) are investigated using global ionosphere and thermosphere model simulations under the southward ...
H. Wang +4 more
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The Astrophysical Journal, 1992 We present Arecibo 21 cm line observations of neutral winds associated with young stellar objects. We confirm the detection of fast neutral winds in HH 7-11 and in L1551. These two winds have been coarsely mapped along the CO outflow direction. For the case of HH 7-11, we find that the maximum velocity declines from 170 km s −1 at the center (SVS 13),
Carlo Giovanardi +4 more
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