Narayan Chapagain, Jonathan Makela John Meriwether, Dan Fisher
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Electrodynamics of Low-latitude Thermosphere-Ionosphere from Coincident Measurements of Zonal Neutral Winds, EPB and Plasma Drift Velocities Narayan Chapagain, Jonathan Makela John Meriwether, Dan Fisher Jorge Chau, Ricardo Buriti AOGS 10 th Annual Meeting, 24-28 June 201
Narayan Chapagain, Jonathan Makela John Meriwether, Dan Fisher
Electrodynamics of Low-latitude Thermosphere-Ionosphere from Coincident Measurements of Zonal Neutral Winds, EPB and Plasma Drift Velocities. Narayan Chapagain, Jonathan Makela John Meriwether, Dan Fisher Jorge Chau , Ricardo Buriti. - PowerPoint PPT Presentation
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Electrodynamics of Low-latitude Thermosphere-Ionosphere from
Coincident Measurements of Zonal Neutral Winds, EPB and Plasma
Drift VelocitiesNarayan Chapagain, Jonathan MakelaJohn Meriwether,
Dan FisherJorge Chau, Ricardo Buriti
AOGS 10th Annual Meeting, 24-28 June 20131Measurement
TechniquesComparison of zonal neutral winds with:EPB velocities
from BrazilPlasma drifts (Peru) and EPB velocity
(Chile)SummaryOutlines2
CajCaririJicamarcaMerihillNazcaInstrumentation SitesJicamarca
ISR: Plasma drifts Fabry-Perot Interferometers (FPIs): Neutral
windsOptical imaging systems: EPB velocityPeruBrazilChile3Two
techniques:Cardinal mode (N-E-S-W): Data from Caj only.Common
volume mode (CVN-IN-CVS): Data from both Caj and Cariri.
Measurement Techniques: Neutral WindsBrazilMeasurements of
Doppler shifts of redline emission at 250 km.4Images projected onto
geographic coordinates at altitude of 250 kmIntensity cut through
the image along a line of constant magnetic latitudeChosen to
correspond to the magnetic latitude of the FPI pierce point used in
the comparisonData stacked in time to get keogram plot to estimate
velocity
