Vertical transport by convective clouds: Comparisons of three modeling approaches

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Abstract
We have performed a preliminary comparison of the GEOS‐1 (Goddard Earth Observing System) data assimilation system convective cloud mass fluxes with fluxes from a cloud‐resolving model (the Goddard Cumulus Ensemble Model, GCE). A squall line case study (10–11 June 1985 Oklahoma PRESTORM episode) is the basis of the comparison. Regional (central U. S.) monthly total convective mass flux for June 1985 from GEOS‐1 compares favorably with estimates from a statistical/dynamical approach using GCE simulations and satellite‐derived cloud observations. The GEOS‐1 convective mass fluxes produce reasonable estimates of monthly‐averaged regional convective venting of CO from the boundary layer at least in an urban‐influenced continental region, suggesting that they can be used in tracer transport simulations.