AbstractsEarth & Environmental Science

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

by Marco Paukert

Institution: Universit├Ąt 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


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.