Data from: A galactic cosmic ray cavity in Earth-Moon space

This dataset contains galactic cosmic ray (GCR) proton measurements on the
lunar surface collected by the Chang’E-4/LND instrument, together with
interplanetary magnetic field (IMF) and solar wind parameters from the
ARTEMIS mission. The LND data span 31 lunar cycles from January 2019 to
January 2022 and are provided at a one-minute cadence, while the ARTEMIS
data have been resampled to match this temporal resolution. The dataset
also includes test particle simulation outputs of energetic protons at 20
MeV and 100 MeV in the near-lunar environment, including ensemble-averaged
density maps and orbital-phase-dependent statistics used to generate
Figures 5A–D. In addition, lists of start and end times of
stream/corotating interaction regions (S/CIRs) and interplanetary coronal
mass ejections (ICMEs) are provided to exclude periods affected by
transient solar wind disturbances.