<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><div class=""><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class="">Dear Soft Matter Colleagues and Friends,</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class=""><font class="">On Friday 15 October 2021 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw;<b class=""> </b></font><b class="">room 1.40</b>) we are hosting a seminar during which</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class=""><b class="">Daniel Albuquerque </b>(IGF UW)</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class="">will give a talk</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><b class=""><font face="HelveticaNeue" class="">Liquid-ice mass partitioning in an idealized mixed-phase cloud parcel</font></b></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><b class=""><font face="HelveticaNeue" class="">Abstract</font></b></div><div class="" style="text-align: justify; margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class=""><span style="text-align: start;" class="">Several micro-physical processes determine phase partitioning between ice and liquid water in a mixed-phase </span><span style="text-align: start;" class="">cloud. Here we investigate the collective growth of ice particles and liquid droplets affected by turbulent fluc</span><span style="text-align: start;" class="">tuations in temperature and water vapor fields. All cloud particles, including inactivated nuclei (both CCN and</span><span style="text-align: start;" class=""> IN), are described by Lagrangian super-particles. To account for local variability in the turbulent cloud environ</span><span style="text-align: start;" class="">ment we apply a Lagrangian micro-physical scheme, where temperature and vapor mixing ratio are stochastic </span><span style="text-align: start;" class="">attributes attached to each super-particle. In addition, a simple linear relaxation scheme models turbulent mixing </span><span style="text-align: start;" class="">of the scalar fields probed by each super-particle. The limit of a locally homogeneous supersaturation field corre</span><span style="text-align: start;" class="">sponds to an infinitely short turbulent mixing timescale. The impact of our Lagrangian micro-physical scheme on</span><span style="text-align: start;" class=""> phase partitioning is tested in adiabatic cloud parcel simulations. Results are confronted with idealized reference</span><span style="text-align: start;" class=""> simulations that use bulk micro-physics based on an assumed (temperature-dependent) phase partitioning func</span><span style="text-align: start;" class="">tion. Our study suggests that accounting for local variability in a turbulent cloud is important for reproducing</span><span style="text-align: start;" class=""> steady-state mixed-phase conditions.</span></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class="">Everyone is welcome to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 4.51 (4th floor).</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 14px;"><font face="HelveticaNeue" class=""><br class=""></font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class="">Maria Ekiel-Jeżewska</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class="">Maciej Lisicki</font></div><div class="" style="margin: 0px; font-stretch: normal; line-height: normal;"><font face="HelveticaNeue" class="">Piotr Szymczak</font></div></div></div><div class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; 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