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Barrett, PA, Blyth, A orcid.org/0000-0001-7115-2587, Brown, PRA et al. (1 more author) (2020) The structure of turbulence and mixed-phase cloud microphysics in a highly supercooled altocumulus cloud. Atmospheric Chemistry and Physics, 20 (4). pp. 1921-1939. ISSN 1680-7316
Abstract
Observations of vertically resolved turbulence and cloud microphysics in a mixed-phase altocumulus cloud are presented using in situ measurements from an instrumented aircraft. The turbulence spectrum is observed to have an increasingly negative skewness with distance below cloud top, suggesting that long-wave radiative cooling from the liquid cloud layer is an important source of turbulence kinetic energy. Turbulence measurements are presented from both the liquid cloud layer and ice virga below. Vertical profiles of both bulk and microphysical liquid and ice cloud properties indicate that ice is produced within the liquid layer cloud at a temperature of −30 ∘C. These high-resolution in situ measurements support previous remotely sensed observations from both ground-based and space-borne instruments and could be used to evaluate numerical model simulations of altocumulus clouds at spatial scales from eddy-resolving models to global numerical weather prediction models and climate simulations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > National Centre for Atmos Science (NCAS) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Apr 2020 14:10 |
Last Modified: | 21 Apr 2020 11:39 |
Status: | Published |
Publisher: | European Geosciences Union |
Identification Number: | 10.5194/acp-20-1921-2020 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:159402 |
Available Versions of this Item
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The Structure of Turbulence and mixed-phase Cloud Microphysics in a Highly Supercooled Altocumulus Cloud. (deposited 21 Apr 2020 11:37)
- The structure of turbulence and mixed-phase cloud microphysics in a highly supercooled altocumulus cloud. (deposited 16 Apr 2020 14:10) [Currently Displayed]