2nd Workshop on Cloud Organization (WCO2)

Session

Convective concepts

16 May 2022, 09:35

Public Library (Utrecht)

Description

Overarching session

29. Spontaneous clustering of convection in simple models, cloud resolving models and observations.

Adrian Tompkins (ICTP)

16/05/2022, 09:35

Talk

This talk address convective aggregation on the mesoscale in idealized cloud resolving models, in highly simplified stochastic models and in the latest observations in the tropical western Pacific.

Cloud resolving models run in idealized conditions of radiative convective equilibrium often show randomly distributed convection switching to a state in which the convection is highly clustered,...

8. Links between spatial organization and plume rooting in a decentralized framework for convective transport

Roel Neggers (University of Cologne)

16/05/2022, 10:05

Talk

In this study a spectral model for convective transport is coupled to a thermal population model on a horizontal microgrid. Thermals interact under simple rules, reflecting pulsating growth and environmental deformation. Long-lived thermal clusters thus form on the microgrid, exhibiting scale growth, spatial organization and memory. Size distributions of cluster number are diagnosed from the...

33. Explaining convective self-aggregation onset with a stochastic reaction-diffusion model of the Tropics

Giovanni Biagioli (University of Trieste)

16/05/2022, 10:20

Talk

In an attempt to explain some differences existing between cloud-resolving models (CRMs) about the occurrence, under certain circumstances, of states in which convection self-aggregates, a simplified, two-dimensional, stochastic model was developed. Its prognostic equation governs the evolution of column total water relative humidity in tropical free troposphere, including convective...