Marine Heatwaves and Associated Rainfall Over the East China Sea Simulated Using a Convection-Permitting Regional Air–Sea Coupled Model

Published: Jan. 1, 2025

Language: Английский

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Changes and factors of thermal discharge from 2013 to 2023: A case study of the Tianwan nuclear power plant

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 112986 - 112986

Published: Jan. 1, 2025

Language: Английский

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Impact of Carbon and Nitrogen Assimilation in Sargassum fusiforme (Harvey) Setchell due to Marine Heatwave Under Global Warming

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(2)

Published: Feb. 1, 2025

ABSTRACT Because of the rising global temperatures, Sargassum fusiforme (Harvey) Setchell, a commercially valuable seaweed, has experienced reduced yield and quality due to high temperatures from marine heatwave events. However, mechanisms underlying effects stress on S. remain unclear. In this study, carbon nitrogen assimilation processes in were analyzed. These results indicated that stress, especially at 30°C for 12 days, significantly increased levels hydrogen peroxide (83%), malondialdehyde (84.7%), relative conductivity (16.5%) algae, which suggested an increase algal damage. Morphologically, damaged thylakoid structure photosynthetic efficiency algae accumulated NADPH, ATP, α‐ketoglutarate significantly, resulting decreased content mannitol, product. Additionally, physiological transcriptomic revealed inhibited rate nitrate absorption activities most enzymes associated with accumulation, while upregulating glutamate dehydrogenase (GDH), suggesting crucial role GDH 's adaptation stress. terms amino acid composition, proline alanine sensitive treatment. Moreover, under natural environment simulation validation experiment, showed same performance as laboratory conditions. The events oxidative damage assimilation, ultimately leading negative growth algae. Thus, context rapid warming exacerbating events, our study provides insights high‐temperature‐resistant breeding ecological management coastal aquaculture.

Language: Английский

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Dual Effects of Marine Heatwaves on Typhoon Intensity and Associated Heat Dissipation

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 968 - 968

Published: March 9, 2025

Based on the positions of 1027 typhoons that passed through Western Pacific (WP), East China Sea (ECS), and South (SCS), results indicate category marine heatwaves (MHWs) significantly decreases or dissipates after a typhoon’s passage, with stronger causing more pronounced dissipation. The presence MHWs does not necessarily enhance typhoon intensity; in as many 151 cases, weakened despite MHWs. Furthermore, case studies were conducted using three traversed different regions—Hinnamnor (2022), Mawar (2023), Koinu (2023)—to investigate dual effects intensity their dissipation satellite observations ocean reanalysis datasets. Results show by increasing sea surface temperature (SST) heat content (OHC), while also strengthening stratification shallower mixed layer depth (MLD), creating favorable conditions for intensification. While may initially intensity, passage triggers intense vertical mixing upwelling, which disrupts MHW structures alters distribution, potentially leading to fluctuations. impact varies time space, can sustain strength loss induced typhoon. Additionally, variations OHC mean upper 100 m (T100¯) inner-core region (R50) than outer-core (R30), indicating energy exchange is concentrated inner core, broader air–sea interactions occur outer core. development SST but are highly susceptible rapid due typhoon-induced impacts, forming dynamic two-way interaction.

Language: Английский

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STVformer: A spatial-temporal-variable transformer with auxiliary knowledge for sea surface temperature prediction

Applied Ocean Research, Journal Year: 2024, Volume and Issue: 153, P. 104218 - 104218

Published: Sept. 7, 2024

Language: Английский

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