Future projection of East Asian atmospheric rivers in high-resolution climate models

Atmospheric rivers (ARs) play a critical role in extreme precipitation in East Asia during the East Asian summer monsoon. While ARs are projected to increase in a warming climate, their regional changes in East Asia remain unclear partly due to the use of relatively coarse models. This study investi...

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Main Authors: Yeeun Kwon, Seok-Woo Son
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Weather and Climate Extremes
Online Access:http://www.sciencedirect.com/science/article/pii/S2212094725000349
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author Yeeun Kwon
Seok-Woo Son
author_facet Yeeun Kwon
Seok-Woo Son
author_sort Yeeun Kwon
collection DOAJ
description Atmospheric rivers (ARs) play a critical role in extreme precipitation in East Asia during the East Asian summer monsoon. While ARs are projected to increase in a warming climate, their regional changes in East Asia remain unclear partly due to the use of relatively coarse models. This study investigates future changes in East Asian ARs using high-resolution climate model simulations. The results show a robust increase in AR frequency and associated precipitation in East Asia in the near future (2025–2050). ARs are also projected to become more intense and persistent with a considerable increase in extreme precipitation, although the quantitative change slightly differs depending on the AR detection algorithms. Such changes are primarily driven by thermodynamic processes, with dynamic processes playing a secondary role. However, the dynamic processes, especially low-frequency circulation changes, contribute significantly to the inter-model spread, determining the uncertainty in the future projections of East Asian ARs. This finding helps to better understand future changes in AR and associated extreme precipitation in East Asia.
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spelling doaj-art-ce6257f93f98464abb2f3dc3118046cc2025-08-20T01:51:55ZengElsevierWeather and Climate Extremes2212-09472025-06-014810077610.1016/j.wace.2025.100776Future projection of East Asian atmospheric rivers in high-resolution climate modelsYeeun Kwon0Seok-Woo Son1School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of KoreaCorresponding author.; School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of KoreaAtmospheric rivers (ARs) play a critical role in extreme precipitation in East Asia during the East Asian summer monsoon. While ARs are projected to increase in a warming climate, their regional changes in East Asia remain unclear partly due to the use of relatively coarse models. This study investigates future changes in East Asian ARs using high-resolution climate model simulations. The results show a robust increase in AR frequency and associated precipitation in East Asia in the near future (2025–2050). ARs are also projected to become more intense and persistent with a considerable increase in extreme precipitation, although the quantitative change slightly differs depending on the AR detection algorithms. Such changes are primarily driven by thermodynamic processes, with dynamic processes playing a secondary role. However, the dynamic processes, especially low-frequency circulation changes, contribute significantly to the inter-model spread, determining the uncertainty in the future projections of East Asian ARs. This finding helps to better understand future changes in AR and associated extreme precipitation in East Asia.http://www.sciencedirect.com/science/article/pii/S2212094725000349
spellingShingle Yeeun Kwon
Seok-Woo Son
Future projection of East Asian atmospheric rivers in high-resolution climate models
Weather and Climate Extremes
title Future projection of East Asian atmospheric rivers in high-resolution climate models
title_full Future projection of East Asian atmospheric rivers in high-resolution climate models
title_fullStr Future projection of East Asian atmospheric rivers in high-resolution climate models
title_full_unstemmed Future projection of East Asian atmospheric rivers in high-resolution climate models
title_short Future projection of East Asian atmospheric rivers in high-resolution climate models
title_sort future projection of east asian atmospheric rivers in high resolution climate models
url http://www.sciencedirect.com/science/article/pii/S2212094725000349
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