A New Look at the Daily Cycle of Trade Wind Cumuli
A description of the daily cycle of oceanic shallow cumulus for undisturbed boreal winter conditions in the North Atlantic trades is presented. Modern investigation tools are used, including storm-resolving and large-eddy simulations, run over large domains in realistic configurations, and observati...
Published in: | Journal of Advances in Modeling Earth Systems |
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ftsubggeo:oai:e-docs.geo-leo.de:11858/9482 2023-05-15T17:33:42+02:00 A New Look at the Daily Cycle of Trade Wind Cumuli Vial, Jessica Vogel, Raphaela Bony, Sandrine Stevens, Bjorn Winker, David M. Cai, Xia Hohenegger, Cathy Naumann, Ann Kristin Brogniez, Hélène 2019 https://doi.org/10.1029/2019MS001746 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9482 eng eng doi:10.1029/2019MS001746 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9482 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY ddc:551.5 daily cycle diurnal time scale trade wind cumuli shallow clouds observations high-resolution models doc-type:article 2019 ftsubggeo https://doi.org/10.1029/2019MS001746 2022-11-09T06:51:40Z A description of the daily cycle of oceanic shallow cumulus for undisturbed boreal winter conditions in the North Atlantic trades is presented. Modern investigation tools are used, including storm-resolving and large-eddy simulations, run over large domains in realistic configurations, and observations from in situ measurements and satellite-based retrievals. Models and observations clearly show pronounced diurnal variations in cloudiness, both near cloud base and below the trade inversion. The daily cycle reflects the evolution of two cloud populations: (i) a population of nonprecipitating small cumuli with weak vertical extent, which grows during the day and maximizes around sunset, and (ii) a population of deeper precipitating clouds with a stratiform cloud layer below the trade inversion, which grows during the night and maximizes just before sunrise. Previous studies have reported that cloudiness near cloud base undergoes weak variations on time scales longer than a day. However, here we find that it can vary strongly at the diurnal time scale. This daily cycle could serve as a critical test of the models' representation of the physical processes controlling cloudiness near cloud base, which is thought to be key for the determination of the Earth's climate response to warming. Article in Journal/Newspaper North Atlantic GEO-LEOe-docs (FID GEO) Journal of Advances in Modeling Earth Systems 11 10 3148 3166 |
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Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551.5 daily cycle diurnal time scale trade wind cumuli shallow clouds observations high-resolution models |
spellingShingle |
ddc:551.5 daily cycle diurnal time scale trade wind cumuli shallow clouds observations high-resolution models Vial, Jessica Vogel, Raphaela Bony, Sandrine Stevens, Bjorn Winker, David M. Cai, Xia Hohenegger, Cathy Naumann, Ann Kristin Brogniez, Hélène A New Look at the Daily Cycle of Trade Wind Cumuli |
topic_facet |
ddc:551.5 daily cycle diurnal time scale trade wind cumuli shallow clouds observations high-resolution models |
description |
A description of the daily cycle of oceanic shallow cumulus for undisturbed boreal winter conditions in the North Atlantic trades is presented. Modern investigation tools are used, including storm-resolving and large-eddy simulations, run over large domains in realistic configurations, and observations from in situ measurements and satellite-based retrievals. Models and observations clearly show pronounced diurnal variations in cloudiness, both near cloud base and below the trade inversion. The daily cycle reflects the evolution of two cloud populations: (i) a population of nonprecipitating small cumuli with weak vertical extent, which grows during the day and maximizes around sunset, and (ii) a population of deeper precipitating clouds with a stratiform cloud layer below the trade inversion, which grows during the night and maximizes just before sunrise. Previous studies have reported that cloudiness near cloud base undergoes weak variations on time scales longer than a day. However, here we find that it can vary strongly at the diurnal time scale. This daily cycle could serve as a critical test of the models' representation of the physical processes controlling cloudiness near cloud base, which is thought to be key for the determination of the Earth's climate response to warming. |
format |
Article in Journal/Newspaper |
author |
Vial, Jessica Vogel, Raphaela Bony, Sandrine Stevens, Bjorn Winker, David M. Cai, Xia Hohenegger, Cathy Naumann, Ann Kristin Brogniez, Hélène |
author_facet |
Vial, Jessica Vogel, Raphaela Bony, Sandrine Stevens, Bjorn Winker, David M. Cai, Xia Hohenegger, Cathy Naumann, Ann Kristin Brogniez, Hélène |
author_sort |
Vial, Jessica |
title |
A New Look at the Daily Cycle of Trade Wind Cumuli |
title_short |
A New Look at the Daily Cycle of Trade Wind Cumuli |
title_full |
A New Look at the Daily Cycle of Trade Wind Cumuli |
title_fullStr |
A New Look at the Daily Cycle of Trade Wind Cumuli |
title_full_unstemmed |
A New Look at the Daily Cycle of Trade Wind Cumuli |
title_sort |
new look at the daily cycle of trade wind cumuli |
publishDate |
2019 |
url |
https://doi.org/10.1029/2019MS001746 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9482 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1029/2019MS001746 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9482 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2019MS001746 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
11 |
container_issue |
10 |
container_start_page |
3148 |
op_container_end_page |
3166 |
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1766132297761816576 |