Global Variability and Future Projections of Marine Heatwave Onset and Decline Rates

Remote Sensing, Год журнала: 2025, Номер 17(8), С. 1362 - 1362

Опубликована: Апрель 11, 2025

Marine heatwaves (MHWs) can significantly impact marine ecosystems and socio-economic systems, their severity may increase with global warming. Nevertheless, research on the onset decline rates of MHWs remains limited, historical future variations are not yet fully understood. This study, therefore, analyzes spatiotemporal characteristics MHW by using sea surface temperature data from OISSTv2.1 CMIP6. The results indicate that during period 1982 to 2014, were higher in eddy-active mid-latitude current systems western tropical region but lower subtropical gyres. A remarkably high correlation (0.94) exists between rates; regions also tend have rates. Approximately 49.69% ocean exhibits an increasing trend rates, significant increases observed Eastern Equatorial Pacific. Meanwhile, 92.87% oceanic exhibit Looking ahead (2015~2100), both SSP245 SSP585 scenarios display consistent spatial patterns Kuroshio-Oyashio Extension, Gulf Stream, Antarctic Circumpolar Current, Brazil-Malvinas Confluence relatively Under scenario, than those under scenario. indicates as warming intensifies, more extreme likely occur. finding it is necessary pay attention rate when mitigating its potential impacts.

Язык: Английский

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Future projection of marine heatwaves in a global marine hotspot: case of East/Japan sea

Climate Dynamics, Год журнала: 2025, Номер 63(4)

Опубликована: Апрель 1, 2025

Язык: Английский

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The spatiotemporal characteristics and driving mechanisms of subsurface marine heatwaves in the Xisha Region

Frontiers in Marine Science, Год журнала: 2024, Номер 11

Опубликована: Май 23, 2024

Under the background of global climate change, Subsurface Marine Heatwaves (SSMHWs) have become a ‘hot-spot’ research due to their significant impacts on marine ecosystems. Temperature data from ECCO2 for years 1992 2021 is used spatiotemporal characteristics SSMHWs in upper 500 m over Xisha region (110°E 113°E, 15°N 18°N). This study indicates that high intensity occur area, with vertical maximum at approximately 100 m. These events exhibit seasonal variations, highest occurring May. The SSMHW analysis varies interannually. intensified rate 1.53°C·Days/Year and tend shift deeper water past three decades. A block-based method identification proposed, order take extent event consideration. By analyzing eight most intense based spatial cumulative intensity, it suggested warm mesoscale eddies may play an important role distribution SSMHWs. Statistical shows coverage eddy zone influence evolution Additionally, only 18.27% apparent surface heatwave signals. findings are vital uncovering dynamics future monitoring, early warnings conservation.

Язык: Английский

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Projected Changes in Southeast Asian Sea Surface Characteristics Using CMIP6 GCMs

Earth Systems and Environment, Год журнала: 2024, Номер unknown

Опубликована: Окт. 3, 2024

Язык: Английский

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