On the inter-comparison of two tracer transport schemes on icosahedral grids

Monotonicity of the advection schemes is enforced by a slope limiter as well as flux-corrected transport (FCT). We compared aforementioned space-time coupled and space-time decoupled advection schemes in terms of their performance for the recently proposed advection test cases. Our findings advocate that space-time coupled advection scheme is performing better than its counterpart. Furthermore, we used the fully discrete advection scheme to carried out a comparison of slope limitation and FCT approach to achieve monotonicity.