caa a22 4500 528786539 20190606031550.0 cr unu---uuuuu 180924s2014 xx s 000 0 eng 10.3929/ethz-b-000095527 doi 10.5194/acp-14-8501-2014 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/95527 Representing time-dependent freezing behaviour in immersion mode ice nucleation [Elektronische Daten] [Ross J. Herbert, Ben J. Murray, Thomas F. Whale, Steven J. Dobbie, Jed D. Atkinson] Atmos. chem. phys. Open access ethresearch In order to understand the impact of ice formation in clouds, a quantitative understanding of ice nucleation is required, along with an accurate and efficient representation for use in cloud resolving models. Ice nucleation by atmospherically relevant particle types is complicated by interparticle variability in nucleating ability, as well as a stochastic, time-dependent, nature inherent to nucleation. Here we present a new and computationally efficient Framework for Reconciling Observable Stochastic Time-dependence (FROST) in immersion mode ice nucleation. This framework is underpinned by the finding that the temperature dependence of the nucleation-rate coefficient controls the residence-time and cooling-rate dependence of freezing. It is shown that this framework can be used to reconcile experimental data obtained on different timescales with different experimental systems, and it also provides a simple way of representing the complexities of ice nucleation in cloud resolving models. The routine testing and reporting of time-dependent behaviour in future experimental studies is recommended, along with the practice of presenting normalised data sets following the methods outlined here. Creative Commons Attribution 3.0 Unported http://creativecommons.org/licenses/by/3.0 ethresearch Herbert Ross J. joint author Murray Ben J. joint author Whale Thomas F. joint author Dobbie Steven J. joint author Atkinson Jed D. joint author Atmospheric Chemistry and Physics London : European Geophysical Society 14 (16), pp. 8501-8520 1680-7375 http://hdl.handle.net/20.500.11850/95527 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/95527 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 1- Herbert Ross J. joint author ETHRESEARCH 700 1- Murray Ben J. joint author ETHRESEARCH 700 1- Whale Thomas F. joint author ETHRESEARCH 700 1- Dobbie Steven J. joint author ETHRESEARCH 700 1- Atkinson Jed D. joint author ETHRESEARCH 773 0- Atmospheric Chemistry and Physics London : European Geophysical Society 14 (16), pp. 8501-8520 1680-7375 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access