Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene
Abstract The East Asian winter monsoon (EAWM) is a crucial climate system in Asia, with significant social and economic impacts. Orbital‐scale variability of the EAWM during the Holocene and its associated mechanisms, however, are still not fully understood. Based on a high‐resolution transient simu...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2023GL105440 https://doaj.org/article/ac97ea1ce78d4a9099ee0064d6624243 |
id |
ftdoajarticles:oai:doaj.org/article:ac97ea1ce78d4a9099ee0064d6624243 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:ac97ea1ce78d4a9099ee0064d6624243 2024-09-15T18:35:03+00:00 Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene Peng Zhou Xinzhou Li Zhengguo Shi Yingying Sha Jing Lei Zhisheng An 2023-11-01T00:00:00Z https://doi.org/10.1029/2023GL105440 https://doaj.org/article/ac97ea1ce78d4a9099ee0064d6624243 EN eng Wiley https://doi.org/10.1029/2023GL105440 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL105440 https://doaj.org/article/ac97ea1ce78d4a9099ee0064d6624243 Geophysical Research Letters, Vol 50, Iss 21, Pp n/a-n/a (2023) Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2023GL105440 2024-08-05T17:49:23Z Abstract The East Asian winter monsoon (EAWM) is a crucial climate system in Asia, with significant social and economic impacts. Orbital‐scale variability of the EAWM during the Holocene and its associated mechanisms, however, are still not fully understood. Based on a high‐resolution transient simulation by a coupled climate model, we present here a continuous climate evolution of the EAWM in response to orbital forcing. Our simulated springtime EAWM variations, consistent with grain size records of loess, exhibit an obvious strengthening trend since the mid‐Holocene. In winter, a similar increasing trend is also simulated although not statistically significant. Our results suggest that the Holocene EAWM is basically controlled by meridional temperature gradients between high and low latitudes in both seasons. Other than northern insolation forcing, the feedbacks from Arctic sea ice and Eurasian snow cover also modulate the meridional temperature gradients, highlighting their important roles in driving EAWM evolution during the Holocene. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 21 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geophysics. Cosmic physics QC801-809 Peng Zhou Xinzhou Li Zhengguo Shi Yingying Sha Jing Lei Zhisheng An Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
topic_facet |
Geophysics. Cosmic physics QC801-809 |
description |
Abstract The East Asian winter monsoon (EAWM) is a crucial climate system in Asia, with significant social and economic impacts. Orbital‐scale variability of the EAWM during the Holocene and its associated mechanisms, however, are still not fully understood. Based on a high‐resolution transient simulation by a coupled climate model, we present here a continuous climate evolution of the EAWM in response to orbital forcing. Our simulated springtime EAWM variations, consistent with grain size records of loess, exhibit an obvious strengthening trend since the mid‐Holocene. In winter, a similar increasing trend is also simulated although not statistically significant. Our results suggest that the Holocene EAWM is basically controlled by meridional temperature gradients between high and low latitudes in both seasons. Other than northern insolation forcing, the feedbacks from Arctic sea ice and Eurasian snow cover also modulate the meridional temperature gradients, highlighting their important roles in driving EAWM evolution during the Holocene. |
format |
Article in Journal/Newspaper |
author |
Peng Zhou Xinzhou Li Zhengguo Shi Yingying Sha Jing Lei Zhisheng An |
author_facet |
Peng Zhou Xinzhou Li Zhengguo Shi Yingying Sha Jing Lei Zhisheng An |
author_sort |
Peng Zhou |
title |
Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
title_short |
Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
title_full |
Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
title_fullStr |
Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
title_full_unstemmed |
Strengthened East Asian Winter Monsoon Regulated by Insolation and Arctic Sea Ice Since the Middle Holocene |
title_sort |
strengthened east asian winter monsoon regulated by insolation and arctic sea ice since the middle holocene |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GL105440 https://doaj.org/article/ac97ea1ce78d4a9099ee0064d6624243 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Geophysical Research Letters, Vol 50, Iss 21, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GL105440 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL105440 https://doaj.org/article/ac97ea1ce78d4a9099ee0064d6624243 |
op_doi |
https://doi.org/10.1029/2023GL105440 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
21 |
_version_ |
1810477585856987136 |