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

