13333 to 13344 of 13980 results
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Atmospheric temperature responses to solar irradiance and geomagnetic activity
Read more of: Atmospheric temperature responses to solar irradiance and geomagnetic activityThe relative effects of solar irradiance and geomagnetic activity on the atmospheric temperature anomalies (Ta) are examined from the monthly to interdecadal timescales. Geomagnetic Ap (Ap) signals are found primarily […]
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Possible solar wind effect on the Northern Annular Mode and northern hemispheric circulation during winter and spring
Read more of: Possible solar wind effect on the Northern Annular Mode and northern hemispheric circulation during winter and springStatistically measurable responses of atmospheric circulation to solar wind dynamic pressure are found in the Northern Hemisphere (NH) zonal-mean zonal wind and temperature, and on the Northern Annular Mode (NAM) […]
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Decadal-scale changes in the effect of the QBO on the northern stratospheric polar vortex
Read more of: Decadal-scale changes in the effect of the QBO on the northern stratospheric polar vortexThis study documents decadal-scale changes in the Holton and Tan (HT) relationship, i.e., the influence of the lower stratospheric equatorial quasi-biennial oscillation (QBO) on the northern hemisphere (NH) extratropical circulation. […]
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Geomagnetic perturbations on stratospheric circulation in late winter and spring
Read more of: Geomagnetic perturbations on stratospheric circulation in late winter and springThis study investigates if the descent of odd nitrogen, generated in the thermosphere and the upper mesosphere by energetic particle precipitation (EPP-NOx), has a detectable impact on stratospheric wind and […]
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Low-altitude measurements of 2–6 MeV electron trapping lifetimes at 1.5 ≤ L ≤ 2.5
Read more of: Low-altitude measurements of 2–6 MeV electron trapping lifetimes at 1.5 ≤ L ≤ 2.5During the Halloween Storm period (October–November 2003), a new Van Allen belt electron population was powerfully accelerated. The inner belt of electrons formed in this process decayed over a period […]
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Longitudinal and seasonal variations in plasmaspheric electron density: Implications for electron precipitation
Read more of: Longitudinal and seasonal variations in plasmaspheric electron density: Implications for electron precipitationThe tilt and offset of the Earth’s magnetic field can significantly affect the longitudinal and seasonal distribution of electron density in the plasmasphere. Here we show that for the solar […]
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Evaluation of whistler mode chorus amplification during an injection event observed on CRRES
Read more of: Evaluation of whistler mode chorus amplification during an injection event observed on CRRESThe excitation of nightside whistler mode chorus emissions in the low-density region outside the plasmapause is investigated during an injection of plasma sheet electrons into the inner magnetosphere. CRRES data […]
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Review of modeling of losses and sources of relativistic electrons in the outer radiation belt I: Radial transport
Read more of: Review of modeling of losses and sources of relativistic electrons in the outer radiation belt I: Radial transportIn this paper, we focus on the modeling of radial transport in the Earth’s outer radiation belt. A historical overview of the first observations of the radiation belts is presented, […]
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Survey of magnetosonic waves and proton ring distributions in the Earth’s inner magnetosphere
Read more of: Survey of magnetosonic waves and proton ring distributions in the Earth’s inner magnetosphereFast magnetosonic waves can lead to the local acceleration of electrons from ∼10 keV up to a few MeV on a timescale of 1–2 d and may play an important […]
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Electron scattering by whistler-mode ELF hiss in plasmaspheric plumes
Read more of: Electron scattering by whistler-mode ELF hiss in plasmaspheric plumesNonadiabatic loss processes of radiation belt energetic electrons include precipitation loss to the atmosphere due to pitch-angle scattering by various magnetospheric plasma wave modes. Here we consider electron precipitation loss […]
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Ground-based transmitter signals observed from space: Ducted or nonducted?
Read more of: Ground-based transmitter signals observed from space: Ducted or nonducted?The principal loss mechanism for electrons from the inner radiation belt (1.2 < L < 2.0) and slot region (2.0 < L < 3.0) is atmospheric precipitation driven by several […]