Results 1 to 10 of about 489 (161)

Forbush decreases: Algorithm generated dataset [PDF]

Data in Brief, 2020
Efforts to correctly detect Forbush decreases (FDs) in the cosmic ray (CR) intensity flux are ongoing (see [2,7]). The FD data presented here are a part of the data generated in [6] in a recent investigation of the effects of CR anisotropies on the ...
O. Okike
doaj   +4 more sources

Forbush Decrease Characteristics in a Magnetic Cloud [PDF]

Space Weather, 2020
Based on the new mechanism, the Forbush decrease characteristics are calculated for eight magnetic cloud types. It is shown that the Forbush decrease amplitude does not depend on the magnetic cloud type, while the anisotropy strongly does.
A. S. Petukhova, I. S. Petukhov, S. I. Petukhov   +2 more
doaj   +2 more sources

Investigating Effects of Solar Proton Events and Forbush Decreases on Ground‐Level Potential Gradient Recorded at Middle and Low Latitudes and Different Altitudes

Space Weather, 2022
High‐energetic charged particles, such as solar protons, and phenomena such as Forbush decreases are eligible candidates to affect the global electric circuit.
J. Tacza, A. Odzimek, E. Tueros Cuadros, J.‐P. Raulin, M. Kubicki, G. Fernandez, A. Marun   +6 more
doaj   +2 more sources

Precursory Signs of Large Forbush Decreases in Relation to Cosmic Rays Equatorial Anisotropy Variation

Atmosphere
Forbush decreases are usually characterized by increased values of cosmic ray anisotropy. The precursory signs, i.e., pre-increases and especially pre-decreases of the cosmic ray intensity, are highly anisotropic phenomena that ordinarily forewarn of ...
Maria-Christina Papailiou, Maria Abunina, Helen Mavromichalaki, Nataly Shlyk, Semyon Belov, Artem Abunin, Maria Gerontidou, Anatoly Belov, Victor Yanke, Amalia Triantou   +9 more
doaj   +3 more sources

Unusual Forbush Decreases and Geomagnetic Storms on 24 March, 2024 and 11 May, 2024

Atmosphere
As the current solar cycle 25 progresses and moves towards solar maxima, solar activity is increasing and extreme space weather events are taking place.
Helen Mavromichalaki, Maria-Christina Papailiou, Maria Livada, Maria Gerontidou, Pavlos Paschalis, Argyris Stassinakis, Maria Abunina, Nataly Shlyk, Artem Abunin, Anatoly Belov, Victor Yanke, Norma Crosby, Mark Dierckxsens, Line Drube   +13 more
doaj   +3 more sources

Testing the simultaneity of Forbush decreases with algorithm-selected Forbush event catalogue [PDF]

Journal of Astrophysics and Astronomy, 2022
26 pages, 6 figures, Accepted in Journal of Astrophysics and ...
J. A. ALHASSAN, O. OKIKE, A. E. CHUKWUDE
openaire   +2 more sources

Revisiting two-step Forbush decreases [PDF]

Journal of Geophysical Research, 2011
H E Spence
exaly   +2 more sources

Peculiarities of medium parameter dynamics and cosmic ray density in strong Forbush decreases associated with magnetic clouds

Solar-Terrestrial Physics, 2023
Diffusion and electromagnetic mechanisms determine the formation of sporadic Forbush decreases. The diffusion mechanism affects the Forbush decrease amplitude in the turbulent layer, and the part of the coronal mass ejection preceding the magnetic cloud,
Petukhova A. S., Petuhov I. S., Petukhov S. I., Gotovtsev I. S.   +3 more
doaj   +1 more source

PECULIARITIES OF SPORADIC VARIATIONS IN DENSITY AND ANISOTROPY OF GALACTIC COSMIC RAYS IN SOLAR CYCLE 24

Solar-Terrestrial Physics, 2022
In this work, we have processed data from the global network of neutron monitors and muon telescopes by the global survey method to study variations in the density and anisotropy of galactic cosmic rays during Forbush decreases observed in solar cycle 24.
V.G. Grigoryev, S.K. Gerasimova, P.Yu. Gololobov, S.A. Starodubtsev, A.S. Zverev   +4 more
doaj   +1 more source

A new model describing Forbush Decreases at Mars: combining the heliospheric modulation and the atmospheric influence

Earth and Planetary Physics, 2020
Forbush decreases are depressions in the galactic cosmic rays (GCRs) that are caused primarily by modulations of interplanetary coronal mass ejections (ICMEs) but also occasionally by stream/corotating interaction regions (SIRs/CIRs).
Jingnan Guo, Robert F. Wimmer-Schweingruber, Mateja Dumbović, Bernd Heber, YuMing Wang   +4 more
doaj   +1 more source