---
_id: '9135'
abstract:
- lang: eng
text: Idealized simulations of tropical moist convection have revealed that clouds
can spontaneously clump together in a process called self-aggregation. This results
in a state where a moist cloudy region with intense deep convection is surrounded
by extremely dry subsiding air devoid of deep convection. Because of the idealized
settings of the simulations where it was discovered, the relevance of self-aggregation
to the real world is still debated. Here, we show that self-aggregation feedbacks
play a leading-order role in the spontaneous genesis of tropical cyclones in cloud-resolving
simulations. Those feedbacks accelerate the cyclogenesis process by a factor of
2, and the feedbacks contributing to the cyclone formation show qualitative and
quantitative agreement with the self-aggregation process. Once the cyclone is
formed, wind-induced surface heat exchange (WISHE) effects dominate, although
we find that self-aggregation feedbacks have a small but nonnegligible contribution
to the maintenance of the mature cyclone. Our results suggest that self-aggregation,
and the framework developed for its study, can help shed more light into the physical
processes leading to cyclogenesis and cyclone intensification. In particular,
our results point out the importance of the longwave radiative cooling outside
the cyclone.
article_processing_charge: No
article_type: original
author:
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: David M.
full_name: Romps, David M.
last_name: Romps
citation:
ama: Muller CJ, Romps DM. Acceleration of tropical cyclogenesis by self-aggregation
feedbacks. Proceedings of the National Academy of Sciences. 2018;115(12):2930-2935.
doi:10.1073/pnas.1719967115
apa: Muller, C. J., & Romps, D. M. (2018). Acceleration of tropical cyclogenesis
by self-aggregation feedbacks. Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1719967115
chicago: Muller, Caroline J, and David M. Romps. “Acceleration of Tropical Cyclogenesis
by Self-Aggregation Feedbacks.” Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences, 2018. https://doi.org/10.1073/pnas.1719967115.
ieee: C. J. Muller and D. M. Romps, “Acceleration of tropical cyclogenesis by self-aggregation
feedbacks,” Proceedings of the National Academy of Sciences, vol. 115,
no. 12. Proceedings of the National Academy of Sciences, pp. 2930–2935, 2018.
ista: Muller CJ, Romps DM. 2018. Acceleration of tropical cyclogenesis by self-aggregation
feedbacks. Proceedings of the National Academy of Sciences. 115(12), 2930–2935.
mla: Muller, Caroline J., and David M. Romps. “Acceleration of Tropical Cyclogenesis
by Self-Aggregation Feedbacks.” Proceedings of the National Academy of Sciences,
vol. 115, no. 12, Proceedings of the National Academy of Sciences, 2018, pp. 2930–35,
doi:10.1073/pnas.1719967115.
short: C.J. Muller, D.M. Romps, Proceedings of the National Academy of Sciences
115 (2018) 2930–2935.
date_created: 2021-02-15T14:18:16Z
date_published: 2018-03-20T00:00:00Z
date_updated: 2022-01-24T12:39:49Z
day: '20'
doi: 10.1073/pnas.1719967115
extern: '1'
fulldoi: https://doi.org/10.1073/pnas.1719967115
intvolume: ' 115'
issue: '12'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1719967115
month: '03'
oa: 1
oa_version: Published Version
page: 2930-2935
publication: Proceedings of the National Academy of Sciences
publication_identifier:
issn:
- 0027-8424
- 1091-6490
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
status: public
title: Acceleration of tropical cyclogenesis by self-aggregation feedbacks
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 115
year: '2018'
...