Role of land-ocean interactions in stepwise Northern Hemisphere Glaciation
(2024) In Nature Communications 15(1).- Abstract
The investigation of triggers causing the onset and intensification of Northern Hemisphere Glaciation (NHG) during the late Pliocene is essential for understanding the global climate system, with important implications for projecting future climate changes. Despite their critical roles in the global climate system, influences of land-ocean interactions on high-latitude ice sheets remain largely unexplored. Here, we present a high-resolution Asian dust record from Ocean Drilling Program Site 1208 in the North Pacific, which lies along the main route of the westerlies. Our data indicate that atmosphere-land-ocean interactions affected aeolian dust emissions through modulating moisture and vegetation in dust source regions, highlighting a... (More)
The investigation of triggers causing the onset and intensification of Northern Hemisphere Glaciation (NHG) during the late Pliocene is essential for understanding the global climate system, with important implications for projecting future climate changes. Despite their critical roles in the global climate system, influences of land-ocean interactions on high-latitude ice sheets remain largely unexplored. Here, we present a high-resolution Asian dust record from Ocean Drilling Program Site 1208 in the North Pacific, which lies along the main route of the westerlies. Our data indicate that atmosphere-land-ocean interactions affected aeolian dust emissions through modulating moisture and vegetation in dust source regions, highlighting a critical role of terrestrial systems in initiating the NHG as early as 3.6 Myr ago. Combined with additional multi-proxy and model results, we further show that westerly wind strength was enhanced, mainly at low-to-middle tropospheric levels, during major glacial events at about 3.3 and 2.7 Myr ago. We suggest that coupled responses of Earth’s surface dynamics and atmospheric circulation in the Plio-Pleistocene likely involved feedbacks related to changes in paleogeography, ocean circulation, and global climate.
(Less)
- author
- organization
- publishing date
- 2024-12
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Communications
- volume
- 15
- issue
- 1
- article number
- 6711
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:85200656954
- pmid:39112487
- ISSN
- 2041-1723
- DOI
- 10.1038/s41467-024-51127-w
- language
- English
- LU publication?
- yes
- id
- 25231b7d-842c-49c1-a199-7b7e1217d2bf
- date added to LUP
- 2024-08-30 11:56:28
- date last changed
- 2024-08-31 03:00:11
@article{25231b7d-842c-49c1-a199-7b7e1217d2bf,
abstract = {{<p>The investigation of triggers causing the onset and intensification of Northern Hemisphere Glaciation (NHG) during the late Pliocene is essential for understanding the global climate system, with important implications for projecting future climate changes. Despite their critical roles in the global climate system, influences of land-ocean interactions on high-latitude ice sheets remain largely unexplored. Here, we present a high-resolution Asian dust record from Ocean Drilling Program Site 1208 in the North Pacific, which lies along the main route of the westerlies. Our data indicate that atmosphere-land-ocean interactions affected aeolian dust emissions through modulating moisture and vegetation in dust source regions, highlighting a critical role of terrestrial systems in initiating the NHG as early as 3.6 Myr ago. Combined with additional multi-proxy and model results, we further show that westerly wind strength was enhanced, mainly at low-to-middle tropospheric levels, during major glacial events at about 3.3 and 2.7 Myr ago. We suggest that coupled responses of Earth’s surface dynamics and atmospheric circulation in the Plio-Pleistocene likely involved feedbacks related to changes in paleogeography, ocean circulation, and global climate.</p>}},
author = {{Zhong, Yi and Tan, Ning and Abell, Jordan T. and Sun, Chijun and Kaboth-Bahr, Stefanie and Ford, Heather L. and Herbert, Timothy D. and Pullen, Alex and Horikawa, Keiji and Yu, Jimin and Struve, Torben and Weber, Michael E. and Clift, Peter D. and Larrasoaña, Juan C. and Lu, Zhengyao and Yang, Hu and Bahr, André and Chen, Tianyu and Zhang, Jingyu and Wei, Cao and Xia, Wenyue and Yang, Sheng and Liu, Qingsong}},
issn = {{2041-1723}},
language = {{eng}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Nature Communications}},
title = {{Role of land-ocean interactions in stepwise Northern Hemisphere Glaciation}},
url = {{http://dx.doi.org/10.1038/s41467-024-51127-w}},
doi = {{10.1038/s41467-024-51127-w}},
volume = {{15}},
year = {{2024}},
}