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Droplet freezing in clouds induced by mineral dust particles: Sensitivities of precipitation and radiation

by Marco Paukert

Institution:	Universität Karlsruhe
Year:	2016
Keywords:	Cloud microphysics; Ice nucleation; Numerical simulation
Posted:	02/05/2017
Record ID:	2132243
Full text PDF:	http://digbib.ubka.uni-karlsruhe.de/volltexte/documents/3875510

Abstract

We aim to enhance our understanding of cloud microphysical processes under conditions of varying droplet freezing efficiencies in numerical simulations of Arctic mixed-phase stratocumulus and isolated deep convective clouds. A novel framework of immersion freezing is implemented in the model, considering the collisions of droplets and subsequent particle accumulation in rain-sized drops. The sensitivity of clouds is investigated in a wide range of atmospherically-relevant dust concentrations.