Articles | Volume 16, issue 19
Atmos. Chem. Phys., 16, 12411–12424, 2016
https://doi.org/10.5194/acp-16-12411-2016
Atmos. Chem. Phys., 16, 12411–12424, 2016
https://doi.org/10.5194/acp-16-12411-2016

Research article 04 Oct 2016

Research article | 04 Oct 2016

What controls the low ice number concentration in the upper troposphere?

Cheng Zhou et al.

Related authors

Why do general circulation models overestimate the aerosol cloud lifetime effect? A case study comparing CAM5 and a CRM
Cheng Zhou and Joyce E. Penner
Atmos. Chem. Phys., 17, 21–29, https://doi.org/10.5194/acp-17-21-2017,https://doi.org/10.5194/acp-17-21-2017, 2017
Short summary
Dehydration effects from contrails in a coupled contrail–climate model
U. Schumann, J. E. Penner, Yibin Chen, Cheng Zhou, and K. Graf
Atmos. Chem. Phys., 15, 11179–11199, https://doi.org/10.5194/acp-15-11179-2015,https://doi.org/10.5194/acp-15-11179-2015, 2015

Related subject area

Subject: Clouds and Precipitation | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Impacts of cloud microphysics parameterizations on simulated aerosol–cloud interactions for deep convective clouds over Houston
Yuwei Zhang, Jiwen Fan, Zhanqing Li, and Daniel Rosenfeld
Atmos. Chem. Phys., 21, 2363–2381, https://doi.org/10.5194/acp-21-2363-2021,https://doi.org/10.5194/acp-21-2363-2021, 2021
Short summary
Cold cloud microphysical process rates in a global chemistry–climate model
Sara Bacer, Sylvia C. Sullivan, Odran Sourdeval, Holger Tost, Jos Lelieveld, and Andrea Pozzer
Atmos. Chem. Phys., 21, 1485–1505, https://doi.org/10.5194/acp-21-1485-2021,https://doi.org/10.5194/acp-21-1485-2021, 2021
Short summary
Precipitation enhancement in stratocumulus clouds through airborne seeding: sensitivity analysis by UCLALES-SALSA
Juha Tonttila, Ali Afzalifar, Harri Kokkola, Tomi Raatikainen, Hannele Korhonen, and Sami Romakkaniemi
Atmos. Chem. Phys., 21, 1035–1048, https://doi.org/10.5194/acp-21-1035-2021,https://doi.org/10.5194/acp-21-1035-2021, 2021
Short summary
Secondary ice production in summer clouds over the Antarctic coast: an underappreciated process in atmospheric models
Georgia Sotiropoulou, Étienne Vignon, Gillian Young, Hugh Morrison, Sebastian J. O'Shea, Thomas Lachlan-Cope, Alexis Berne, and Athanasios Nenes
Atmos. Chem. Phys., 21, 755–771, https://doi.org/10.5194/acp-21-755-2021,https://doi.org/10.5194/acp-21-755-2021, 2021
Short summary
Opinion: Cloud-phase climate feedback and the importance of ice-nucleating particles
Benjamin J. Murray, Kenneth S. Carslaw, and Paul R. Field
Atmos. Chem. Phys., 21, 665–679, https://doi.org/10.5194/acp-21-665-2021,https://doi.org/10.5194/acp-21-665-2021, 2021
Short summary

Cited articles

Abbatt, J. P. D., Benz, S., Cziczo, D. J., Kanji, Z., Lohmann, U., and Möhler, O.: Solid ammonium sulfate aerosols as ice nuclei: a pathway for cirrus cloud formation, Science, 313, 1770–1773, https://doi.org/10.1126/science.1129726, 2006.
Barahona, D. and Nenes, A.: Parameterization of cirrus formation in large scale models: Homogenous nucleation, J. Geophys. Res., 113, D11211, https://doi.org/10.1029/2007JD009355, 2008.
Barahona, D. and Nenes, A.: Parameterizing the competition between homogeneous and heterogeneous freezing in ice cloud formation – polydisperse ice nuclei, Atmos. Chem. Phys., 9, 5933–5948, https://doi.org/10.5194/acp-9-5933-2009, 2009.
Barahona, D. and Nenes, A.: Dynamical states of low temperature cirrus, Atmos. Chem. Phys., 11, 3757–3771, https://doi.org/10.5194/acp-11-3757-2011, 2011.
Bretherton, C. S. and Park, S.: A new moist turbulence parameterization in the community atmosphere model, J. Climate, 22, 3422–3448, 2009.
Download
Short summary
We examined the different ice nucleation parameterization factors that affect the simulated ice number concentrations in cirrus clouds in the upper troposphere using the CAM5 model. We examined the effect from three different updraft velocities (from low to high), two different water vapour accommodation coefficients (α = 0.1 or 1), the effect of including vapour deposition onto pre-existing ice particles during ice nucleation, and the effect of including SOA as heterogeneous ice nuclei.
Altmetrics
Final-revised paper
Preprint