Results 11 to 20 of about 376,247 (350)
Influence of Scattered Sunlight for Wind Measurements with the O2(a1Δg) Dayglow
Remote Sensing, 2022 Observing the O2(a1Δg) dayglow with the limb-viewing DASH instrument enables remote sensing of neutral wind in near space. Many advantages are gained by using this new approach, but the influence factors on measurement accuracy have not been thoroughly ...
Weiwei He +6 more
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Responses of the wintertime auroral E-region neutral wind to varying levels of geomagnetic activity
Frontiers in Astronomy and Space Sciences, 2023 Introduction: The auroral E-region is an important interface where forces from the magnetosphere and the lower atmosphere converge and have a significant effect on the vertical structure of the neutral winds. The resulting vertical neutral wind structure
Weijia Zhan +2 more
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Thermospheric Neutral Wind Measurements and Investigations across the African Region—A Review
Atmosphere, 2022 This paper briefly reviews studies of thermospheric neutral wind dynamics over the African region. The literature includes a review of the observations of neutral winds over five African locations using the Fabry–Perot Interferometer (FPI), and the ...
Daniel Okoh +7 more
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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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