  Until the advent of the SOLARNET recommendations, metadata sharing of
simulated data within the Solar Physics community has been mostly on a "private
communication" basis, with the description of the data format and content
conveyed in an ad hoc manner. This document aims to amend this situation by
establishing recommendations for representing such data and the associated
metadata, based on the SOLARNET Metadata Recommendations for Solar Observations
(arXiv:2011.12139)
