Results 21 to 30 of about 349,191 (315)

Appearance and Precipitation Characteristics of High-Latitude Pulsating Aurora

Frontiers in Astronomy and Space Sciences, 2022
Characteristics of pulsating aurora (PsA) at the equatorward part of the auroral oval have been well described in the literature by previous studies. We extend our knowledge on high-latitude PsA observations by analysing 68 PsA events from the optical ...
Noora Partamies, Noora Partamies, Fasil Tesema, Emma Bland   +3 more
doaj   +1 more source

Swarm Observations of Dawn/Dusk Asymmetries Between Pedersen Conductance in Upward and Downward Field‐Aligned Current Regions

Earth and Space Science, 2021
The locations of region 1 and 2 field‐aligned current systems were determined using fluxgate magnetometer measurements from 875 dawn‐dusk passes of the Swarm A satellite.
L. Olifer, C. Feltman, R. Ghaffari, S. Henderson, D. Huyghebaert, J. Burchill, A. N. Jaynes, D. Knudsen, K. McWilliams, J. I. Moen, A. Spicher, J. Wu   +11 more
doaj   +1 more source

Exceptional middle latitude electron precipitation detected by balloon observations: implications for atmospheric composition [PDF]

Atmospheric Chemistry and Physics, 2022
Energetic particle precipitation leads to ionization in the Earth's atmosphere, initiating the formation of active chemical species which destroy ozone and have the potential to impact atmospheric composition and dynamics down to the troposphere.
I. Mironova, M. Sinnhuber, G. Bazilevskaya, M. Clilverd, B. Funke, V. Makhmutov, V. Makhmutov, E. Rozanov, E. Rozanov, M. L. Santee, T. Sukhodolov, T. Sukhodolov, T. Ulich   +12 more
doaj   +1 more source

Research on recognition method of cloud precipitation particle shape based on BP neural network [PDF]

MATEC Web of Conferences, 2021
In order to solve the problem that the shape of cloud particle images measured by airborne cloud imaging probe (CIP) cannot be automatically recognized, this paper proposes an automatic recognition method of cloud and precipitation particle shape based ...
Dong Haonan, Jiao Ruili, Huang Minsong
doaj   +1 more source

Ionospheric plasma structuring in relation to auroral particle precipitation

Journal of Space Weather and Space Climate, 2023
Auroral particle precipitation potentially plays the main role in ionospheric plasma structuring. The impact of auroral particle precipitation on plasma structuring is investigated using multi-point measurements from scintillation receivers and all-sky ...
Enengl Florine, Kotova Daria, Jin Yaqi, Clausen Lasse B.N., Miloch Wojciech J.   +4 more
doaj   +1 more source

Geomagnetic disturbances on ground associated with particle precipitation during SC [PDF]

, 2010
We have examined several cases of magnetosphere compression by solar wind pressure pulses using a set of instruments located in the noon sector of auroral zone. We have found that the increase in riometric absorption (sudden commencement absorption, SCA)
Honary, F., Kozlovsky, A., Safargaleev, V., Turunen, T., Voronin, A.   +4 more
core   +3 more sources

Spatial extent of the energetic electron precipitation region during substorms

Frontiers in Astronomy and Space Sciences, 2022
The spatial coverage of the energetic electron precipitation (EEP) region during three substorms has been determined using a combination of ground-based instruments in North America.
Emma Bland, Tamás Bozóki, Tamás Bozóki, Noora Partamies, Noora Partamies   +4 more
doaj   +1 more source

Hybrid-Vlasov simulation of auroral proton precipitation in the cusps: Comparison of northward and southward interplanetary magnetic field driving

Journal of Space Weather and Space Climate, 2020
Particle precipitation is a central aspect of space weather, as it strongly couples the magnetosphere and the ionosphere and can be responsible for radio signal disruption at high latitudes.
Grandin Maxime, Turc Lucile, Battarbee Markus, Ganse Urs, Johlander Andreas, Pfau-Kempf Yann, Dubart Maxime, Palmroth Minna   +7 more
doaj   +1 more source

Dependence of Energetic Electron Precipitation on the Geomagnetic Index Kp and Electron Energy [PDF]

Journal of Astronomy and Space Sciences, 2013
It has long been known that the magnetospheric particles can precipitate into the atmosphere of the Earth. In this paper we examine such precipitation of energetic electrons using the data obtained from low-altitude polar orbiting satellite ...
Mi-Young Park, Dae-Young Lee, Dae-Kyu Shin, Jung-Hee Cho, Eun-Hee Lee   +4 more
doaj   +1 more source

Classification and Distribution of the Dayside Ion Upflows Associated with Auroral Particle Precipitation

Universe, 2023
Two important phenomena of the solar wind–magnetosphere–ionosphere coupling are auroral particle precipitation and the formation of ions flowing upward from the ionosphere. They have opposite transport directions of energy and substance.
Yao Yu, Ze-Jun Hu, Hong-Tao Cai, Yi-Sheng Zhang   +3 more
doaj   +1 more source