Technical note: Parameterising cloud base updraft velocity of marine stratocumuli

Ahola, Jaakko; Raatikainen, Tomi; Alper, Muzaffer Ege; Keskinen, Jukka-Pekka; Kokkola, Harri; Kukkurainen, Antti; Lipponen, Antti; Liu, Jia; Nordling, Kalle; Partanen, Antti-Ilari; Romakkaniemi, Sami; Räisänen, Petri; Tonttila, Juha; Korhonen, Hannele

doi:https://doi.org/10.5194/acp-22-4523-2022

Articles | Volume 22, issue 7

https://doi.org/10.5194/acp-22-4523-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-4523-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 7

Technical note

|

07 Apr 2022

Technical note |

| 07 Apr 2022

Technical note: Parameterising cloud base updraft velocity of marine stratocumuli

Jaakko Ahola, Tomi Raatikainen, Muzaffer Ege Alper, Jukka-Pekka Keskinen, Harri Kokkola, Antti Kukkurainen, Antti Lipponen, Jia Liu, Kalle Nordling, Antti-Ilari Partanen, Sami Romakkaniemi, Petri Räisänen, Juha Tonttila, and Hannele Korhonen

Supplement

https://doi.org/10.5194/acp-22-4523-2022-supplement

Data sets

Results of "Parameterising cloud base updraft velocity of marine stratocumuli" -manuscript Jaakko Ahola, Tomi Raatikainen, Muzaffer Ege Alper, Jukka-Pekka Keskinen, Harri Kokkola, Antti Kukkurainen, Antti Lipponen, Jia Liu, Kalle Nordling, Antti-Ilari Partanen, Sami Romakkaniemi, Petri Räisänen, Juha Tonttila, and Hannele Korhonen https://doi.org/10.23728/FMI-B2SHARE.477AF35BE02F4A158E2F7E852022EC60

LES simulations of "Parameterising cloud base updraft velocity of marine stratocumuli" -manuscript Jaakko Ahola, Tomi Raatikainen, Muzaffer Ege Alper, Jukka-Pekka Keskinen, Harri Kokkola, Antti Kukkurainen, Antti Lipponen, Jia Liu, Kalle Nordling, Antti-Ilari Partanen, Sami Romakkaniemi, Petri Räisänen, Juha Tonttila, and Hannele Korhonen https://doi.org/10.23728/FMI-B2SHARE.179721B8F65643718FF4A5FECF230F7C

DESIGN: SALSA daytime 150 simulations Muzaffer Ege Alper https://doi.org/10.5281/zenodo.5346794

DESIGN: SALSA nighttime 135 simulations Muzaffer Ege Alper https://doi.org/10.5281/zenodo.5346789

DESIGN: SB 500 daytime simulations Muzaffer Ege Alper https://doi.org/10.5281/zenodo.5346768

DESIGN: SB 500 nighttime simulations Muzaffer Ege Alper https://doi.org/10.5281/zenodo.5346765

Model code and software

Filter Source Data Kalle Nordling https://doi.org/10.5281/zenodo.5343428

BSP algorithm - StateSpaceDesign Muzaffer Ege Alper and Jia Liu https://doi.org/10.5281/zenodo.5343366

LES-emulator-01prepros Jaakko Ahola and Tomi Raatikainen https://doi.org/10.5281/zenodo.5336989

UCLALES-SALSA Juha Tonttila, Tomi Raatikainen, Jaakko Ahola, Harri Kokkola, Antti Ruuskanen, and Sami Romakkaniemi https://doi.org/10.5281/zenodo.5289397

LES-02postpros Juha Tonttila, Jaakko Ahola, and Tomi Raatikainen https://doi.org/10.5281/zenodo.5347269

LES-emulator-02postpros Jaakko Ahola, Tomi Raatikainen, Antti Kukkurainen, Muzaffer Ege Alper, Jia Liu, Jukka-Pekka Keskinen, and Antti Lipponen https://doi.org/10.5281/zenodo.6075756

GPEmulatorPython Jaakko Ahola, Antti Kukkurainen, Muzaffer Ege Alper, Jia Liu, and Antti Lipponen https://doi.org/10.5281/zenodo.5347718

LES-03plotting Jaakko Ahola https://doi.org/10.5281/zenodo.5347571

LES-emulator-03plotting Jaakko Ahola https://doi.org/10.5281/zenodo.6075779

LES-emulator-04configFiles Jaakko Ahola https://doi.org/10.5281/zenodo.5383581

LES-03plotting: v2.0.1 Jaakko Ahola https://doi.org/10.5281/zenodo.6075748

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Short summary

Clouds are important for the climate, and cloud droplets have a significant role in cloud properties. Cloud droplets form when air rises and cools and water vapour condenses on small particles that can be natural or of anthropogenic origin. Currently, the updraft velocity, meaning how fast the air rises, is poorly represented in global climate models. In our study, we show three methods that will improve the depiction of updraft velocity and which properties are vital to updrafts.