Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CMEs and SEPs During November-December 2020: A Challenge for Real-Time
  Space Weather Forecasting   Predictions of coronal mass ejections (CMEs) and solar energetic particles
(SEPs) are a central issue in space weather forecasting. In recent years,
interest in space weather predictions has expanded to include impacts at other
planets beyond Earth as well as spacecraft scattered throughout the
heliosphere. In this sense, the scope of space weather science now encompasses
the whole heliospheric system, and multi-point measurements of solar transients
can provide useful insights and validations for prediction models. In this
work, we aim to analyse the whole inner heliospheric context between two
eruptive flares that took place in late 2020, i.e. the M4.4 flare of November
29 and the C7.4 flare of December 7. This period is especially interesting
because the STEREO-A spacecraft was located ~60{\deg} east of the Sun-Earth
line, giving us the opportunity to test the capabilities of "predictions at
360{\deg}" using remote-sensing observations from the Lagrange L1 and L5 points
as input. We simulate the CMEs that were ejected during our period of interest
and the SEPs accelerated by their shocks using the WSA-Enlil-SEPMOD modelling
chain and four sets of input parameters, forming a "mini-ensemble". We validate
our results using in-situ observations at six locations, including Earth and
Mars. We find that, despite some limitations arising from the models'
architecture and assumptions, CMEs and shock-accelerated SEPs can be reasonably
studied and forecast in real time at least out to several tens of degrees away
from the eruption site using the prediction tools employed here.

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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: cs
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph