Browsing by Author "0000 0000 3175 0999 (Heelis, RA)"
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Daytime Zonal Drifts in the Ionospheric 150km and E Regions Estimated Using Ear Observations
Pavan Chaitanya, P.; Patra, A. K.; Otsuka, Y.; Yokoyama, T.; Yamamoto, M.; Stoneback, Russell A.; Heelis, R. A. (Amer Geophysical Union, 2017-08-31)Multibeam observations of the 150km echoes made using the Equatorial Atmosphere Radar (EAR), located at Kototabang, Indonesia, provide unique opportunity to study both vertical and zonal ExB plasma drifts in the equatorial ... -
Duskside Enhancement of Equatorial Zonal Electric Field Response to Convection Electric Fields During the St. Patrick's Day Storm on 17 March 2015
Tulasi Ram, S.; Yokoyama, T.; Otsuka, Y.; Shiokawa, K.; Sripathi, S.; Veenadhari, B.; Heelis, Roderick A.; Ajith, K. K.; Gowtam, V. S.; Gurubaran, S.; Supnithi, P.; Le Huy, M. (Blackwell Publishing Ltd, 2016-01-11)The equatorial zonal electric field responses to prompt penetration of eastward convection electric fields (PPEF) were compared at closely spaced longitudinal intervals at dusk to premidnight sectors during the intense ... -
Identifying Equatorial Ionospheric Irregularities using In Situ Ion Drifts
Stoneback, Russell A.; Heelis, Roderick A. (Copernicus Gesellschaft Mbh, 2014-04-15)Previous climatological investigations of ionospheric irregularity occurrence in the equatorial ionosphere have utilized in situ measurements of plasma density to identify the presence of an irregularity. Here we use the ... -
Measurement of Individual H⁺ and O⁺ Ion Temperatures in the Topside Ionosphere
Hsu, Chih-Te; Heelis, Roderick A.Plasma temperatures in the ionosphere are associated with both the dynamics and spatial distribution of the neutral and charge particles. During the daytime, temperatures are determined by solar energy inputs and energy ... -
Plasma Dynamics Associated with Equatorial Ionospheric Irregularities
Smith, Jonathon Matthew; Heelis, Roderick A.The Communication/Navigation Outage Forecasting System satellite was operational from 2008, a period of deep solar minimum, to 2015, a period of moderate solar conditions. The behavior of the vertical plasma drift and the ... -
The Characterization of Ionospheric Convection Reversal Boundaries in the High-Latitude Region Using DMSP Data
Chen, Yun-Ju; 0000-0003-0900-3999 (2017-08)The characteristics of the convection reversal boundary (CRB) in the high latitude ionosphere are investigated by using Defense Meteorological Satellite Program (DMSP) ion drift and particle precipitation measurements from ... -
Topside Equatorial Zonal Ion Velocities Measured by C/NOFS During Rising Solar Activity
Coley, W. R.; Stoneback, Russell A.; Heelis, Rodney A.; Hairston, M. R. (Copernicus Gesellschaft Mbh, 2014-02-04)The Ion Velocity Meter (IVM), a part of the Coupled Ion Neutral Dynamic Investigation (CINDI) instrument package on the Communication/Navigation Outage Forecast System (C/NOFS) spacecraft, has made over 5 yr of in situ ...