Moisture channels and pre-existing weather systems for East Asian rain belts

Abstract Rain belts in East Asia frequently pose threats to human societies and natural systems. Advances in a skillful forecast on heavy precipitation require a deeper understanding of the preconditioned environments and the hydrologic cycle. Here, we disentangle 15 dominant moisture channels along...

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Autores principales:	Tat Fan Cheng, Mengqian Lu, Lun Dai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/284242aae5e9493cbbc450d3cb50e9e5
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id	oai:doaj.org-article:284242aae5e9493cbbc450d3cb50e9e5
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spelling	oai:doaj.org-article:284242aae5e9493cbbc450d3cb50e9e52021-12-02T16:53:15ZMoisture channels and pre-existing weather systems for East Asian rain belts10.1038/s41612-021-00187-62397-3722https://doaj.org/article/284242aae5e9493cbbc450d3cb50e9e52021-05-01T00:00:00Zhttps://doi.org/10.1038/s41612-021-00187-6https://doaj.org/toc/2397-3722Abstract Rain belts in East Asia frequently pose threats to human societies and natural systems. Advances in a skillful forecast on heavy precipitation require a deeper understanding of the preconditioned environments and the hydrologic cycle. Here, we disentangle 15 dominant moisture channels along four corridors reaching the Somali Jet, South Asia, Bay of Bengal, and Pacific basin for the warm-season rain belts. Among them, the Somali and South Asian channels were underappreciated in the literature. The results also highlight the importance of terrestrial moisture sources, and the close relationship between the moisture pathways and rain belts’ characteristics. Back-tracing the weather within a 2-week lead time reveals the pre-existing weather systems and circumglobal wave trains, that govern the moisture channels. Findings from this work develop a better understanding of East Asian rain belts’ water cycle, and may offer insights into model evaluation and heavy rainfall prediction at a longer lead time.Tat Fan ChengMengqian LuLun DaiNature PortfolioarticleEnvironmental sciencesGE1-350Meteorology. ClimatologyQC851-999ENnpj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Meteorology. Climatology QC851-999
spellingShingle	Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Tat Fan Cheng Mengqian Lu Lun Dai Moisture channels and pre-existing weather systems for East Asian rain belts
description	Abstract Rain belts in East Asia frequently pose threats to human societies and natural systems. Advances in a skillful forecast on heavy precipitation require a deeper understanding of the preconditioned environments and the hydrologic cycle. Here, we disentangle 15 dominant moisture channels along four corridors reaching the Somali Jet, South Asia, Bay of Bengal, and Pacific basin for the warm-season rain belts. Among them, the Somali and South Asian channels were underappreciated in the literature. The results also highlight the importance of terrestrial moisture sources, and the close relationship between the moisture pathways and rain belts’ characteristics. Back-tracing the weather within a 2-week lead time reveals the pre-existing weather systems and circumglobal wave trains, that govern the moisture channels. Findings from this work develop a better understanding of East Asian rain belts’ water cycle, and may offer insights into model evaluation and heavy rainfall prediction at a longer lead time.
format	article
author	Tat Fan Cheng Mengqian Lu Lun Dai
author_facet	Tat Fan Cheng Mengqian Lu Lun Dai
author_sort	Tat Fan Cheng
title	Moisture channels and pre-existing weather systems for East Asian rain belts
title_short	Moisture channels and pre-existing weather systems for East Asian rain belts
title_full	Moisture channels and pre-existing weather systems for East Asian rain belts
title_fullStr	Moisture channels and pre-existing weather systems for East Asian rain belts
title_full_unstemmed	Moisture channels and pre-existing weather systems for East Asian rain belts
title_sort	moisture channels and pre-existing weather systems for east asian rain belts
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/284242aae5e9493cbbc450d3cb50e9e5
work_keys_str_mv	AT tatfancheng moisturechannelsandpreexistingweathersystemsforeastasianrainbelts AT mengqianlu moisturechannelsandpreexistingweathersystemsforeastasianrainbelts AT lundai moisturechannelsandpreexistingweathersystemsforeastasianrainbelts
_version_	1718382847707840512

Moisture channels and pre-existing weather systems for East Asian rain belts

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