Results 1 to 10 of about 5,871 (213)

Approximate Bayesian Computation for Estimating Parameters of Data-Consistent Forbush Decrease Model [PDF]

open access: yesEntropy, 2018
Realistic modeling of complex physical phenomena is always quite a challenging task. The main problem usually concerns the uncertainties surrounding model input parameters, especially when not all information about a modeled phenomenon is known.
Anna Wawrzynczak, Piotr Kopka
doaj   +2 more sources

The Amerigo Vespucci as a traveling laboratory for studying the cosmic-ray fluxes at sea level [PDF]

open access: yesScientific Reports
We have installed and operated a plastic scintillator detector counter to measure the flux of cosmic radiation during the 2023−2025 tour of the historical vessel Amerigo Vespucci.
Davide Cerasole   +15 more
doaj   +2 more sources

Model of optical response of marine aerosols to Forbush decreases [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
In order to elucidate the effect of galactic cosmic rays on cloud formation, we investigate the optical response of marine aerosols to Forbush decreases – abrupt decreases in galactic cosmic rays – by means of modeling. We vary the nucleation rate of new
T. Bondo, M. B. Enghoff, H. Svensmark
doaj   +5 more sources

Forbush Decrease Characteristics in a Magnetic Cloud

open access: yesSpace 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   +2 more
doaj   +2 more sources

Forbush decreases: Algorithm generated dataset. [PDF]

open access: yesData 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 simultaneity of FDs.
Okike O.
europepmc   +4 more sources

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

open access: yesSolar-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.   +3 more
doaj   +1 more source

The Effect of Forbush Decreases on the Polar-Night HOx Concentration Affecting Stratospheric Ozone

open access: yesFrontiers in Earth Science, 2021
It is well-known that energetic particle precipitations during solar proton events increase ionization rates in the middle atmosphere enhancing the production of hydrogen oxide radicals (HOx) involved in the catalytic ozone destruction cycle.
Irina Mironova   +5 more
doaj   +1 more source

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

open access: yesJournal 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

Long-term Statistical Analysis of the Simultaneity of Forbush Decrease Events at Middle Latitudes [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2015
Forbush Decreases (FD) are transient, sudden reductions of cosmic ray (CR) intensity lasting a few days, to a week. Such events are observed globally using ground neutron monitors (NMs).
Seongsuk Lee   +5 more
doaj   +1 more source

Magnetic Cloud and Its Interplanetary Shock Sheath as a Modulator of the Cosmic Ray Intensity [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2008
Forbush Decreases (FDs) are representative events of abrupt decrease in galactic cosmic ray intensity. They are known to be strongly associated with solar wind events such as interplanetary shock (IP shock) and magnetic cloud (MC).
Su Yeon Oh
doaj   +1 more source

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