The role of the North Atlantic Ocean on the increase in East Asia's spring extreme hot day occurrences across the early 2000s.

Yong-Han Lee, Sang-Wook Yeh, Jeong-Hun Kim, Maeng-Ki Kim

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Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

4 authors.

Yong-Han LeeDepartment of Marine Science and Convergent Engineering, Hanyang University, Ansan, 15588, South Korea.

Sang-Wook YehDepartment of Marine Science and Convergent Engineering, Hanyang University, Ansan, 15588, South Korea. swyeh@hanyang.ac.kr.

Jeong-Hun KimDepartment of Atmospheric Sciences, Kongju National University, Gongju, 32588, South Korea.

Maeng-Ki KimDepartment of Atmospheric Sciences, Kongju National University, Gongju, 32588, South Korea.

Funding

Korea Ministry of Environment 2022003560001the Ministry of Science and ICT 2021M316A1086803

6 · The paper itself

Abstract

The occurrence frequency of East Asia's extreme hot day in boreal spring has increased since 1979. Using observational data and a Linear baroclinic model experiment, our study suggests that the occurrence of hot day is mainly due to anomalous high pressure over East Asia associated with a horizontal stationary wave train originating from a positive phase of the North Atlantic Tripole (NAT) sea surface temperature (SST) in spring. The effect of a positive phase of the NAT SST is evident in the 2000s, apparently associated with the linear trend of the North Atlantic SST like a positive phase of the NAT SST. Before 2000s, in contrast, SST forcing in the Indian Ocean and eastern tropical Pacific, which is associated with a negative phase of the NAT SST, may contribute to induce the East Asian hot days through atmospheric teleconnections. This implies that the relationship between a positive phase of the NAT SST and the occurrence of hot days in East Asia has been changed during the 2000s.

Indexed as

Atmospheric teleconnectionEast Asia’s extreme hot dayLinear baroclinic modelNorth Atlantic Tripole-like

Identifiers

PMID38684757

DOI10.1038/s41598-024-59812-y

PMCPMC11058825

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.