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Showing 1 to 9 of 9 for “"Neutral Winds"”.
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Fabry-Perot Observations of Midlatitude Neutral Winds and Atmospheric Gravity Wave Activity
… 96 km. The process of extracting the horizontal winds from the detected Doppler shifts and the resulting time series of the zonal and meridional winds at that altitude is presented. The winds at various nights as well as the average winds for two months were compared with the Horizontal Wind …
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Impacts of Anisotropy, Wave Heating, and Neutral Winds on High-Latitude Ionospheric Dynamics
… chemical and collisional interactions with the neutral atmosphere are included. In order to facilitate comparisons with data, the model accepts as inputs the main drivers of ion upflow and outflow: particle precipitation, electric fields, ELF wave power, and neutral winds and densities. GEMINI-TIA …
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F-region winds over the central polar cap
F-region neutral winds across the polar cap have been studied by utilizing a Fabry-Perot interferometer located at Eureka (89° CGM), Nunavut Territory, over a 2-winter period 1997/98 and 1998/99. The dependence of neutral winds on the interplanetary magnetic field (IMF) was studied with …
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Ion-neutral coupling in the geomagnetically disturbed mid-latitude ionosphere as observed by SuperDARN HF radars and NATION Fabry-Perot Interferometers
… governed by interactions between the overlapping neutral constituents and ionospheric plasma. The mid-latitude thermosphere-ionosphere system is very complex owing to its sensitivity to both the polar and equatorial processes. The mid-latitudes is also a relatively unexplored and less understood …
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Auroral Ion Upflows: Sources, High Altitude Dynamics, and Neutral Wind Effects
… frictional heating, electron precipitation, neutral winds, and higher-altitude density cavities. The unique signatures and detailed evolution of these upflows are examined through the use of Incoherent Scatter Radar data and a sophisticated ionospheric fluid model.</p> <p>A survey of solar …
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Three-dimensional wind measurements and modeling using a bi-static Fabry-Perot interferometer system in Brazil
… there are not equivalent amounts of data on neutrals in the thermosphere to pair with these plasma observations. The Remote Equatorial Nighttime Observatory for Ionospheric Regions (RENOIR) project consists of two observing systems stationed in northeastern Brazil in Cajazeiras (6.87S, …
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Incoherent Scatter Radar Observations of Dynamic Ion Composition Changes at High Latitudes during Geomagnetic Storms
… electric fields and plasma interactions with the neutral atmosphere. These two new methods improve on previous, similar work developed in Zettergren et al. [2010,2011] by incorporating more accurate physical models and improving the estimation procedures. These techniques enable studies of …
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Observations of the thermosphere using measurements from long-term Fabry-Perot interferometers
… space. However, the ionosphere is coupled to the neutral region of the atmosphere, known as the thermosphere, and only through knowledge of the state parameters of both regions can accurate predictions of ionospheric phenomena be made during both quiet conditions and geomagnetic storms. As a …