Search Results - "Rodger, J. C."

Missing driver in the Sun–Earth connection from energetic electron precipitation impacts mesospheric ozone by Andersson, M. E., Verronen, P. T., Rodger, C. J., Clilverd, M. A., Seppälä, A.

“…Energetic electron precipitation (EEP) from the Earth’s outer radiation belt continuously affects the chemical composition of the polar mesosphere. EEP can…”
Get full text

Relative detection efficiency of the World Wide Lightning Location Network by Hutchins, M. L., Holzworth, R. H., Brundell, J. B., Rodger, C. J.

“…Using the detected energy per strokes of the World Wide Lightning Location Network (WWLLN) we calculate the relative detection efficiency for the network as if…”
Get full text

Multi‐instrument Observation of Nonlinear EMIC‐Driven Electron Precipitation at sub–MeV Energies by Hendry, A. T., Santolik, O., Kletzing, C. A., Rodger, C. J., Shiokawa, K., Baishev, D.

“…In recent years, experimental results have consistently shown evidence of electromagnetic ion cyclotron (EMIC) wave‐driven electron precipitation down to…”
Get full text

A model providing long‐term data sets of energetic electron precipitation during geomagnetic storms by Kamp, M., Seppälä, A., Clilverd, M. A., Rodger, C. J., Verronen, P. T., Whittaker, I. C.

“…The influence of solar variability on the polar atmosphere and climate due to energetic electron precipitation (EEP) has remained an open question largely due…”
Get full text

Impact of EMIC‐Wave Driven Electron Precipitation on the Radiation Belts and the Atmosphere by Hendry, A. T., Seppälä, A., Rodger, C. J., Clilverd, M. A.

“…In recent years, there has been a growing body of direct experimental evidence demonstrating electromagnetic ion cyclotron (EMIC) waves driving energetic…”
Get full text

Pitch Angle Scattering of Sub‐MeV Relativistic Electrons by Electromagnetic Ion Cyclotron Waves by Denton, R. E., Ofman, L., Shprits, Y. Y., Bortnik, J., Millan, R. M., Rodger, C. J., da Silva, C. L., Rogers, B. N., Hudson, M. K., Liu, K., Min, K., Glocer, A., Komar, C.

“…Electromagnetic ion cyclotron (EMIC) waves have long been considered to be a significant loss mechanism for relativistic electrons. This has most often been…”
Get full text

Comparing Electron Precipitation Fluxes Calculated From Pitch Angle Diffusion Coefficients to LEO Satellite Observations by Reidy, J. A., Horne, R. B., Glauert, S. A., Clilverd, M. A., Meredith, N. P., Woodfield, E. E., Ross, J. P., Allison, H. J., Rodger, C. J.

“…Particle precipitation is a loss mechanism from the radiation belts whereby particles trapped by the Earth's magnetic field are scattered into the loss cone…”
Get full text

Atmospheric Effects of >30‐keV Energetic Electron Precipitation in the Southern Hemisphere Winter During 2003 by Pettit, J. M., Randall, C. E., Peck, E. D., Marsh, D. R., Kamp, M., Fang, X., Harvey, V. L., Rodger, C. J., Funke, B.

“…The atmospheric effects of precipitating electrons are not fully understood, and uncertainties are large for electrons with energies greater than ~30 keV…”
Get full text

Characteristics of Relativistic Microburst Intensity from SAMPEX Observations by Douma, E., Rodger, C. J., Blum, L. W., O'Brien, T. P., Clilverd, M. A.

“…Relativistic electron microbursts are an important electron loss process from the radiation belts into the atmosphere. These precipitation events have been…”
Get full text

A Multi‐Instrument Approach to Determining the Source‐Region Extent of EEP‐Driving EMIC Waves by Hendry, A. T., Santolik, O., Miyoshi, Y., Matsuoka, A., Rodger, C. J., Clilverd, M. A., Kletzing, C. A., Shoji, M., Shinohara, I.

“…Recent years have seen debate regarding the ability of electromagnetic ion cyclotron (EMIC) waves to drive EEP (energetic electron precipitation) into the…”
Get full text

Substorm-induced energetic electron precipitation: Impact on atmospheric chemistry by Seppälä, A., Clilverd, M. A., Beharrell, M. J., Rodger, C. J., Verronen, P. T., Andersson, M. E., Newnham, D. A.

“…Magnetospheric substorms drive energetic electron precipitation into the Earth's atmosphere. We use the output from a substorm model to describe electron…”
Get full text

Substorm-induced energetic electron precipitation: Morphology and prediction by Beharrell, M. J., Honary, F., Rodger, C. J., Clilverd, M. A.

“…The injection, and subsequent precipitation, of 20 to 300 keV electrons during substorms is modeled using parameters of a typical substorm found in the…”
Get full text

POES MEPED differential flux retrievals and electron channel contamination correction by Peck, E. D., Randall, C. E., Green, J. C., Rodriguez, J. V., Rodger, C. J.

“…A correction method to remove proton contamination from the electron channels of the Polar‐orbiting Operational Environmental Satellites Medium Energy…”
Get full text

Relativistic Electron Microburst Events: Modeling the Atmospheric Impact by Seppälä, A., Douma, E., Rodger, C. J., Verronen, P. T., Clilverd, M. A., Bortnik, J.

“…Relativistic electron microbursts are short‐duration, high‐energy precipitation events that are an important loss mechanism for radiation belt particles…”
Get full text

Global Distribution of Superbolts by Holzworth, R. H., McCarthy, M. P., Brundell, J. B., Jacobson, A. R., Rodger, C. J.

“…We use World Wide Lightning Location Network (WWLLN) data on the radiated radio frequency electromagnetic energy per stroke to identify the upper tip of the…”
Get full text

Geomagnetic activity and polar surface air temperature variability by Seppälä, A., Randall, C. E., Clilverd, M. A., Rozanov, E., Rodger, C. J.

“…Here we use the ERA‐40 and ECMWF operational surface level air temperature data sets from 1957 to 2006 to examine polar temperature variations during years…”
Get full text

Longitudinal hotspots in the mesospheric OH variations due to energetic electron precipitation by Andersson, M. E, Verronen, P. T, Rodger, C. J, Clilverd, M. A, Wang, S

“…Using Microwave Limb Sounder (MLS/Aura) and Medium Energy Proton and Electron Detector (MEPED/POES) observations between 2005–2009, we study the longitudinal…”
Get full text

Detection efficiency of the VLF World-Wide Lightning Location Network (WWLLN) : initial case study by RODGER, C. J, WEMER, S, BRUNDELL, J. B, LAY, E. H, THOMSON, N. R, HOLZWORTH, R. H, DOWDEN, R. L

“…An experimental Very Low Frequency (VLF) World-Wide Lightning Location Network (WWLLN) has been developed through collaborations with research institutions…”
Get full text

Energetic electron precipitation and auroral morphology at the substorm recovery phase by Oyama, S., Kero, A., Rodger, C. J., Clilverd, M. A., Miyoshi, Y., Partamies, N., Turunen, E., Raita, T., Verronen, P. T., Saito, S.

“…It is well known that auroral patterns at the substorm recovery phase are characterized by diffuse or patch structures with intensity pulsation. According to…”
Get full text

Geomagnetic activity signatures in wintertime stratosphere wind, temperature, and wave response by Seppälä, A., Lu, H., Clilverd, M. A., Rodger, C. J.

“…We analyzed ERA‐40 and ERA Interim meteorological re‐analysis data for signatures of geomagnetic activity in zonal mean zonal wind, temperature, and…”
Get full text