Figure 1. Schematic of the methodology used to obtain an improved representation of the global dust cycle.

Yellow boxes denote inputs from an ensemble of global model simulations, blue boxes denote inputs from observational constraints on dust properties and abundance, and white boxes denote the inverse model. We report the resulting representation of the global dust cycle in the present paper (green boxes) and the partitioning of the global dust cycle by source region (magenta boxes) in our companion paper (Kok et al., 2021). The subscripts r, s, and k respectively refer to the originating source region, the season, and a model’s particle size bin. Other variables are defined in the main text and the glossary.