Search Results - "Jonah, O. F."

Investigations of conjugate MSTIDS over the Brazilian sector during daytime by Jonah, O. F., Kherani, E. A., De Paula, E. R.

“…This study focuses on the daytime medium‐scale traveling ionospheric disturbances (MSTIDs) observed at conjugate hemispheres. It is the first time that the…”
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Atmospheric and ionospheric response to sudden stratospheric warming of January 2013 by Jonah, O. F., de Paula, E. R., Kherani, E. A., Dutra, S. L. G., Paes, R. R.

“…In this work, we examine the atmospheric and ionospheric responses to the January 2013 sudden stratospheric warming (SSW) event. To examine the atmospheric and…”
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Morphological Features of Ionospheric Scintillations During High Solar Activity Using GPS Observations Over the South American Sector by de Jesus, R., Batista, I. S., Takahashi, H., de Paula, E. R., Barros, D., Figueiredo, C. A. O. B., de Abreu, A. J., Jonah, O. F., Fagundes, P. R., Venkatesh, K.

“…Abstract The main objective of this study is to investigate the ionospheric irregularities observed by Global Positioning System‐total electron content…”
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Equatorial ionization anomaly variability over the Brazilian region during boreal sudden stratospheric warming events by Paes, R. R., Batista, I. S., Candido, C. M. N., Jonah, O. F., Santos, P. C. P.

“…This study refers to the connection between the stratosphere and ionosphere, investigating, specifically, the behavior of the equatorial ionization anomaly…”
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Low‐latitude scintillation weakening during sudden stratospheric warming events by Paula, E. R., Jonah, O. F., Moraes, A. O., Kherani, E. A., Fejer, B. G., Abdu, M. A., Muella, M. T. A. H., Batista, I. S., Dutra, S. L. G., Paes, R. R.

“…Global Positioning System (GPS) L1‐frequency (1.575 GHz) amplitude scintillations at São José dos Campos (23.1°S, 45.8°W, dip latitude 17.3°S), located under…”
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TID Observations and Source Analysis During the 2017 Memorial Day Weekend Geomagnetic Storm Over North America by Jonah, O. F., Coster, A., Zhang, S., Goncharenko, L., Erickson, P. J., Paula, E. R., Kherani, E. A.

“…We investigate ionospheric perturbations associated with traveling ionospheric disturbance (TID) during the geomagnetic storm on Memorial Day weekend (28 May)…”
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Anomalous Behavior of the Equatorial Ionization Anomaly During the 2 July 2019 Solar Eclipse by Jonah, O. F., Goncharenko, L., Erickson, P. J., Zhang, S., Coster, A., Chau, J. L., Paula, E. R., Rideout, W.

“…A solar eclipse is a spectacular phenomenon resulting from a Sun‐Moon alignment as viewed from the Earth. Eclipses have a great influence on the state of the…”
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Observation of TEC perturbation associated with medium‐scale traveling ionospheric disturbance and possible seeding mechanism of atmospheric gravity wave at a Brazilian sector by Jonah, O. F., Kherani, E. A., De Paula, E. R.

“…In the present study, we document daytime total electron content (TEC) disturbances associated with medium‐scale traveling ionospheric disturbances (MSTIDs),…”
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An Investigation of the Ionospheric Disturbances Due to the 2014 Sudden Stratospheric Warming Events Over Brazilian Sector by Jesus, R., Batista, I. S., Jonah, O. F., Abreu, A. J., Fagundes, P. R., Venkatesh, K., Denardini, C. M.

“…The present study investigates the ionospheric F region response in the Brazilian sector due to sudden stratospheric warming (SSW) events of 2014. The data…”
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Nighttime Ionospheric TEC Study Over Latin America During Moderate and High Solar Activity by Romero‐Hernandez, E., Denardini, C. M., Jonah, O. F., Essien, P., Picanço, G. A. S., Nogueira, P. A. B., Rodriguez‐Martinez, M., Resende, L. C. A., Luz, V., Agular‐Rodriguez, E., Sergeeva, M., Gonzalez‐Esparza, J. A., Takahashi, H., Perez‐Tijerina, E.

“…The present work is a comprehensive study of the ionospheric vertical total electron content (vTEC) variations during the nighttime, based on data collected by…”
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Daytime Ionospheric TEC Weather Study Over Latin America by Romero‐Hernandez, E., Denardini, C. M., Takahashi, H., Gonzalez‐Esparza, J. A., Nogueira, P. A. B., Pádua, M. B., Lotte, R. G., Negreti, P. M. S., Jonah, O. F., Resende, L. C. A., Rodriguez‐Martinez, M., Sergeeva, M. A., Barbosa Neto, P. F., Luz, V., Galera Monico, J. F., Aguilar‐Rodriguez, E.

“…The present work is the first of a two‐part weather study of the ionospheric Total Electron Content (TEC), based on data collected by four ground‐based Global…”
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TEC variation during high and low solar activities over South American sector by Jonah, O.F., de Paula, E.R., Muella, M.T.A.H., Dutra, S.L.G., Kherani, E.A., Negreti, P.M.S., Otsuka, Y.

“…Using dual frequency GPS receivers in the South American sector, the measurement of absolute ionospheric Total Electron Content (TEC) has been estimated…”
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