Record-breaking 2020 summer marine heatwaves in the western North Pacific

Yao, Yulong; Wang, Chunzai; Wang, Chao

doi:10.1016/j.dsr2.2023.105288

Cited by 3 publications

(3 citation statements)

References 51 publications

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“…https://doi.org/10.1038/s41612-024-00645-x MHWs in summer 2020 5,13,30,31 . Therefore, more attention should be given to the role of inter-basin interactions when studying the mechanisms of MHWs, especially those occurring at middle-high latitudes 32 .…”

Section: Discussionmentioning

confidence: 99%

Unraveling the Indian monsoon’s role in fueling the unprecedented 2022 Marine Heatwave in the Western North Pacific

Song,

Wang,

Yao

et al. 2024

npj Clim Atmos Sci

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An unprecedented marine heatwave (MHW) event occurred in the middle-high latitudes of the western North Pacific during the summer of 2022. We demonstrate that excessive precipitation thousands of kilometers away fuels this extreme MHW event in July 2022. In the upper atmosphere, a persistent atmospheric blocking system, forming over the MHW region, reduces cloud cover and increases shortwave radiation at the ocean surface, leading to high sea surface temperatures. Atmospheric perturbations induced by latent heat release from the extreme precipitation in the Indian summer monsoon region enhance this atmospheric blocking through the propagation of quasi-stationary Rossby waves. Our hypothesis is verified by using a numerical model that is forced with the observed atmospheric anomalous diabatic heating. This study sheds light on how a subtropical extreme event can fuel another extreme event at middle-high latitudes through an atmospheric teleconnection.

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Section: Discussionmentioning

confidence: 99%

Unraveling the Indian monsoon’s role in fueling the unprecedented 2022 Marine Heatwave in the Western North Pacific

Song,

Wang,

Yao

et al. 2024

npj Clim Atmos Sci

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“…During August 2016, the Yellow Sea experienced the most intense MHW on record since 1982 [25]. Record-breaking MHWs also occurred in the Northwest Pacific during the summer of 2020 [26]. Relatively fewer studies have been conducted on MHWs in the Northwest Pacific Ocean, and further research in this region is urgently needed.…”

Section: Introductionmentioning

confidence: 99%

“…The generation and evolution of MHWs are influenced by ocean dynamics, large-scale synoptic patterns, and teleconnection processes at various spatial and temporal scales [27][28][29]. These mechanisms include long-term anthropogenic climate warming [30], heat flux at the air-sea interface [31,32], atmospheric forcing [33], cloud feedback [34][35][36], ENSO [22,23,[37][38][39], PDO [9], Madden-Julian Oscillation (MJO) [13,25,40], and the WPSH [25,26]. In contrast to atmospheric forcing, Wang et al [41] pointed out that oceanic dynamics can help to explain the increasing trend of marine heatwaves, which may increase the surface latent heat flux.…”

Section: Introductionmentioning

confidence: 99%

Assessment and Projections of Marine Heatwaves in the Northwest Pacific Based on CMIP6 Models

2023

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To assess the abilities of global climate models (GCMs) on simulating the spatiotemporal distribution of marine heatwaves (MHWs), GCMs from the Coupled Model Intercomparison Program in Phase 6 (CMIP6) were evaluated from a historical period between 1985 and 2014 in the Northwest Pacific Ocean using a dataset that synthesizes remote sensing data. MHW simulation capabilities were assessed using Rank Score (RS) and Comprehensive Rating (MR) metrics that include both spatial and temporal scoring metrics. It was found that most CMIP6 models overestimate cumulative intensity, while mean and maximum intensities, in addition to the duration, were underestimated in the historical period. Possible future changes in MHWs were also examined based on the rank-based weighting ensembles under four shared socioeconomic pathways (SSPs) scenarios (SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5). MHWs were identified using both a fixed 30-year baseline and a 30-year sliding baseline. In all scenarios, all MHWs metrics except frequency will have an increasing trend for the fixed baseline method. The frequency of MHWs will decrease after the 2050s. Days will first increase and then stabilize under various scenarios. MHWs will take place for more than 300 days by the end of the 21st century for the SSP5-8.5 scenario. The cumulative intensity in the SSP5-8.5 scenario is roughly six times higher than that in the SSP1-2.6 scenario by the end of the 21st century. A fixed baseline will result in near-permanent MHWs at the end of the 21st century. There will be no permanent MHWs at the end of the 21st century. Using the 30-year shifting baseline to define the MHWs can improve future MHW projections by capturing the spatiotemporal variability features of the MHWs.

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Future changes in marine heatwaves based on high-resolution ensemble projections for the northwestern Pacific Ocean

Kawakami,

Nakano,

Urakawa

et al. 2024

J Oceanogr

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Record-breaking 2020 summer marine heatwaves in the western North Pacific

Cited by 3 publications

References 51 publications

Unraveling the Indian monsoon’s role in fueling the unprecedented 2022 Marine Heatwave in the Western North Pacific

Unraveling the Indian monsoon’s role in fueling the unprecedented 2022 Marine Heatwave in the Western North Pacific

Assessment and Projections of Marine Heatwaves in the Northwest Pacific Based on CMIP6 Models

Future changes in marine heatwaves based on high-resolution ensemble projections for the northwestern Pacific Ocean

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