Search Results - "Brundell, James B."

High-resolution in situ observations of electron precipitation-causing EMIC waves by Rodger, Craig J., Hendry, Aaron T., Clilverd, Mark A., Kletzing, Craig A., Brundell, James B., Reeves, Geoffrey D.

“…Electromagnetic ion cyclotron (EMIC) waves are thought to be important drivers of energetic electron losses from the outer radiation belt through precipitation…”
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A statistical study of whistler waves observed by Van Allen Probes (RBSP) and lightning detected by WWLLN by Zheng, Hao, Holzworth, Robert H., Brundell, James B., Jacobson, Abram R., Wygant, John R., Hospodarsky, George B., Mozer, Forrest S., Bonnell, John

“… Lightning‐generated whistler waves are electromagnetic plasma waves in the very low frequency (VLF) band, which play an important role in the dynamics of…”
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VLF lightning location by time of group arrival (TOGA) at multiple sites by Dowden, Richard L, Brundell, James B, Rodger, Craig J

“…Lightning is located by using the time of group arrival (TOGA) of the VLF (3– 30 kHz ) radiation from a lightning stroke. The dispersed waveform (“sferic”) of…”
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Lightning in the Arctic by Holzworth, Robert H., Brundell, James B., McCarthy, Michael P., Jacobson, Abram R., Rodger, Craig J., Anderson, Todd S.

“…World Wide Lightning Location Network (WWLLN) data on global lightning are used to investigate the increase of total lightning strokes at Arctic latitudes. We…”
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Quiet Night Arctic Ionospheric D Region Characteristics by Thomson, Neil R., Clilverd, Mark A., Brundell, James B., Rodger, Craig J.

“…VLF radio propagation recordings are used to determine the characteristics of the nighttime polar lower D region of the ionosphere. Recordings of both VLF…”
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Using the World Wide Lightning Location Network (WWLLN) to Study Very Low Frequency Transmission in the Earth‐Ionosphere Waveguide: 1. Comparison With a Full‐Wave Model by Jacobson, Abram R., Holzworth, Robert H., Brundell, James B.

“…We investigate a novel way to quantify Very Low Frequency transmission in the Earth‐Ionosphere Waveguide, using data from the World Wide Lightning Location…”
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Using the World Wide Lightning Location Network (WWLLN) to Study Very Low Frequency Transmission in the Earth‐Ionosphere Waveguide: 2. Model Test by Patterns of Detection/Non‐Detection by Jacobson, Abram R., Holzworth, Robert H., Brundell, James B.

“…This is the second half of a two‐part study. In the first part, we had used the World Wide Lightning Location Network's (WWLN) recorded signal amplitudes to…”
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Investigating energetic electron precipitation through combining ground‐based and balloon observations by Clilverd, Mark A., Rodger, Craig J., McCarthy, Michael, Millan, Robyn, Blum, Lauren W., Cobbett, Neil, Brundell, James B., Danskin, Donald, Halford, Alexa J.

“…A detailed comparison is undertaken of the energetic electron spectra and fluxes of two precipitation events that were observed in 18/19 January 2013. A novel…”
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Geomagnetically induced currents during the 07–08 September 2017 disturbed period: a global perspective by Clilverd, Mark A., Rodger, Craig J., Freeman, Mervyn P., Brundell, James B., Mac Manus, Daniel H., Dalzell, Michael, Clarke, Ellen, Thomson, Alan W. P., Richardson, Gemma S., MacLeod, Finlay, Frame, Ian

“…Measurements from six longitudinally separated magnetic observatories, all located close to the 53° mid-latitude contour, are analysed. We focus on the large…”
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Azimuthal dependence of VLF propagation by Hutchins, M. L., Jacobson, Abram R., Holzworth, Robert H., Brundell, James B.

“…The World Wide Lightning Location Network (WWLLN) is used to measure the normalized lightning electric field at three network stations in order to examine the…”
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A case study of electron precipitation fluxes due to plasmaspheric hiss by Hardman, Rachael, Clilverd, Mark A., Rodger, Craig J., Brundell, James B., Duthie, Roger, Holzworth, Robert H., Mann, Ian R., Milling, David K., Macusova, Eva

“…We find that during a large geomagnetic storm in October 2011 the trapped fluxes of >30, >100, and >300 keV outer radiation belt electrons were enhanced at L =…”
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Energetic electron precipitation characteristics observed from Antarctica during a flux dropout event by Clilverd, Mark A., Cobbett, Neil, Rodger, Craig J., Brundell, James B., Denton, Michael H., Hartley, David P., Rodriguez, Juan V., Danskin, Donald, Raita, Tero, Spanswick, Emma L.

“…Data from two autonomous VLF radio receiver systems installed in a remote region of the Antarctic in 2012 is used to take advantage of the juxtaposition of the…”
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Sprite observations in the Northern Territory of Australia by Hardman, Simon F., Dowden, Richard L., Brundell, James B., Bahr, John L., Kawasaki, Zen‐ichiro, Rodger, Craig J.

“…Sprites, a form of brief luminous discharge in the upper atmosphere above a thunderstorm, were observed and imaged on two video cameras in Australia's Northern…”
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Combined THEMIS and ground-based observations of a pair of substorm-associated electron precipitation events by Clilverd, Mark A., Rodger, Craig J., Rae, I. Jonathan, Brundell, James B., Thomson, Neil R., Cobbett, Neil, Verronen, Pekka T., Menk, Frederick W.

“…Using ground‐based subionospheric radio wave propagation data from two very low frequency (VLF) receiver sites, riometer absorption data, and THEMIS satellite…”
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Diurnal variation of the global electric circuit from clustered thunderstorms by Hutchins, Michael L., Holzworth, Robert H., Brundell, James B.

“…The diurnal variation of the global electric circuit is investigated using the World Wide Lightning Location Network (WWLLN), which has been shown to identify…”
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Validation of single-station lightning location technique by Brundell, James B., Rodger, Craig J., Dowden, Richard L.

“…Lightning discharges are powerful impulsive sources of electromagnetic energy over a wide bandwidth allowing passive methods to determine lightning location…”
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Temporal evolution of very strong Trimpis observed at Darwin, Australia by Dowden, Richard L., Brundell, James B., Rodger, Craig J.

“…Very strong phase and amplitude perturbations (Trimpis) of the very strong VLF transmission from NWC received in Darwin, Australia, enabled accurate…”
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Diurnal variation of the global electric circuit from clusteredthunderstorms by Hutchins, Michael L, Holzworth, Robert H, Brundell, James B

“…The diurnal variation of the global electric circuit is investigated using the World Wide Lightning Location Network (WWLLN), which has been shown to identify…”
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Measurements of the VLF scattering pattern of the structured plasma of red sprites by Hardman, S.F., Rodger, C.J., Dowden, R.L., Brundell, J.B.

“…Analysis of a large number of VLF scattering events associated with sprites results in an average scattering distribution having a strong frontal lobe, and…”
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