Coordinated Observations of Neutral Winds, Scintillation Drift Velocities and Equatorial Plasma Bubbles

TitleCoordinated Observations of Neutral Winds, Scintillation Drift Velocities and Equatorial Plasma Bubbles
Publication TypeConference Talk
Year of Publication2010
AuthorsMakela, JJ, Meriwether, JW, Buriti, R, Hedlund, P
Conference Name38th COSPAR Scientific Assembly
Date Published07/2010
Conference LocationBremen, Germany
AbstractA suite of instruments, comprising the Remote Equatorial Nighttime Observatory of Ionospheric Regions (RENOIR), was installed in northeastern Brazil in 2009. RENOIR consists of two Fabry-Perot interferometers (FPIs) separated by 230 km, a wide-angle airglow imaging system, and several Global Positioning System (GPS) receivers. Observations from this cluster of instruments are coordinated to study the background conditions at night, especially during periods exhibiting the passage of equatorial plasma bubbles (EPBs). Analysis of the RENOIR dataset provides estimates of neutral wind velocities, the drift velocity of medium-scale (~300 m) plasma irregularities, and larger-scale (> 1 km) ionospheric structure observed in the imaging data. This allows us to study the coupling between the thermosphere and ionosphere during the passage of EPBs. Here, we present results of data collected during the first year of operations and show, through several case studies, the advantages of studying the nighttime equatorial ionosphere with this set of instrumentation.
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