Search Results - "Boudouridis, A."

Automated Technique for the Detection of Step-Like Solar Wind Dynamic Pressure Changes: Application to the Response of the Transpolar Potential to Solar Wind Dynamic Pressure Fronts by Boudouridis, A., Zesta, E.

“…The input from the solar wind (SW) and the accompanying Interplanetary Magnetic Field (IMF) is the defining feature of the solar wind-magnetosphere…”
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Statistical Comparison of Southern and Northern Auroral Electrojet Indices as a Function of Solar Wind and IMF Conditions by Boudouridis, A., Weygand, J. M., Zesta, E.

“…A Southern Auroral Electrojet (SAE) index has been recently constructed using several Antarctica magnetometer stations. It has been compared for case studies…”
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Changes in the Magnetic Field Topology and the Dayside/Nightside Reconnection Rates in Response to a Solar Wind Dynamic Pressure Front: A Case Study by Boudouridis, A., Connor, H. K., Lummerzheim, D., Ridley, A. J., Zesta, E.

“…One of the most significant observations associated with a sharp enhancement in solar wind dynamic pressure, PSW, is the poleward expansion of the auroral oval…”
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Mode number calculations of ULF field-line resonances using ground magnetometers and THEMIS measurements by Sarris, T. E., Li, X., Liu, W., Argyriadis, E., Boudouridis, A., Ergun, R.

“…Using multiple pairs of International Monitor for Auroral Geomagnetic Effects ground magnetometers together with simultaneous measurements from two of the Time…”
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On the coupling between the Harang reversal evolution and substorm dynamics: A synthesis of SuperDARN, DMSP, and IMAGE observations by Zou, S., Lyons, L. R., Wang, C.-P., Boudouridis, A., Ruohoniemi, J. M., Anderson, P. C., Dyson, P. L., Devlin, J. C.

“…The Harang reversal is a prominent feature frequently observed in the electric and magnetic field patterns in the high‐latitude auroral zone and plays an…”
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Statistical study of the effect of solar wind dynamic pressure fronts on the dayside and nightside ionospheric convection by Boudouridis, A., Lyons, L. R., Zesta, E., Weygand, J. M., Ribeiro, A. J., Ruohoniemi, J. M.

“…Over the past few years, the prominent role of solar wind dynamic pressure in enhancing dayside and nightside reconnection and driving‐enhanced ionospheric…”
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Enhanced solar wind geoeffectiveness after a sudden increase in dynamic pressure during southward IMF orientation by Boudouridis, A., Zesta, E., Lyons, L. R., Anderson, P. C., Lummerzheim, D.

“…It is well known that a persistent southward Interplanetary Magnetic Field (IMF) produces increased geomagnetic activity. It has recently been shown that a…”
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Effect of solar wind pressure pulses on the size and strength of the auroral oval by Boudouridis, A., Zesta, E., Lyons, R., Anderson, P. C., Lummerzheim, D.

“…It has recently been found that solar wind dynamic pressure changes can dramatically affect the precipitation of magnetospheric particles on the high‐latitude…”
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Dayside reconnection enhancement resulting from a solar wind dynamic pressure increase by Boudouridis, A., Lyons, L. R., Zesta, E., Ruohoniemi, J. M.

“…It is well known that the Interplanetary Magnetic Field (IMF) is the major contributor to geomagnetic activity on Earth. Recent studies, however, have shown…”
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Comparison of Fourier and wavelet techniques in the determination of geomagnetic field line resonances by Boudouridis, A., Zesta, E.

“…Fourier transforms have traditionally been used in the past for time‐frequency analysis of numerous physical problems. Recently, a new time‐frequency analysis…”
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Two-dimensional ionospheric flow pattern associated with auroral streamers by Shi, Yong, Zesta, Eftyhia, Lyons, Larry R., Yang, J., Boudouridis, A., Ge, Y. S., Ruohoniemi, J. M., Mende, S.

“…We present direct two‐dimensional flow observations and auroral images from the Super Dual Auroral Radar Network (SuperDARN) radar and Wideband Imaging Camera…”
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Separation of spatial and temporal structure of auroral particle precipitation by Boudouridis, A., Spence, H. E.

“…Knowledge of the dominant temporal and spatial scales of auroral features is instrumental in understanding the various mechanisms responsible for auroral…”
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Nightside flow enhancement associated with solar wind dynamic pressure driven reconnection by Boudouridis, A., Lyons, L. R., Zesta, E., Ruohoniemi, J. M., Lummerzheim, D.

“…Over the past few years the prominent role of solar wind dynamic pressure in enhancing dayside and nightside reconnection and driving enhanced ionospheric…”
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Statistical study of the effect of ULF fluctuations in the IMF on the cross polar cap potential drop for northward IMF by Kim, H.-J., Lyons, L., Boudouridis, A., Pilipenko, V., Ridley, A. J., Weygand, J. M.

“…Recent studies showed that, regardless of the orientation of the Interplanetary Magnetic Field (IMF), ULF wave activity in the solar wind can substantially…”
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Temporal evolution of the transpolar potential after a sharp enhancement in solar wind dynamic pressure by Boudouridis, A., Zesta, E., Lyons, L. R., Anderson, P. C., Ridley, A. J.

“…Recent studies of ionospheric convection have shown that sudden enhancements in solar wind dynamic pressure have significant effect on the transpolar potential…”
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Evidence that solar wind fluctuations substantially affect the strength of dayside ionospheric convection by Kim, H.-J., Lyons, L. R., Zou, S., Boudouridis, A., Lee, D.-Y., Heinselman, C., McCready, M.

“…Ionospheric convection is occasionally observed to be substantially enhanced even when the interplanetary magnetic field (IMF) is not strongly southward and…”
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Effect of solar wind pressure enhancements on storm time ring current asymmetry by Shi, Y., Zesta, E., Lyons, L. R., Boudouridis, A., Yumoto, K., Kitamura, K.

“…The effect of solar wind pressure enhancements on storm time ring current asymmetry is investigated by examining the asymmetric variations in the north‐south…”
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Magnetospheric reconnection driven by solar wind pressure fronts by BOUDOURIDIS, A, ZESTA, E, LYONS, L. R, ANDERSON, P. C, LUMMERZHEIM, D

“…Recent work has shown that solar wind dynamic pressure changes can have a dramatic effect on the particle precipitation in the high-latitude ionosphere. It has…”
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Evaluation of the Hill-Siscoe transpolar potential saturation model during a solar wind dynamic pressure pulse by Boudouridis, A., Zesta, E., Lyons, L. R., Anderson, P. C.

“…Theory, observations, and simulations have shown that saturation of the cross‐polar‐cap potential occurs for high solar wind electric field. One of the…”
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Nonlinear Least Squares Fitting Technique for the Determination of Field Line Resonance Frequency in Ground Magnetometer Data: Application to Remote Sensing of Plasmaspheric Mass Density by Boudouridis, A., Yizengaw, E., Moldwin, M. B., Zesta, E.

“…The accurate determination of the field line resonance (FLR) frequency of a resonating geomagnetic field line is necessary to remotely monitor the…”
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