The spatiotemporal characteristics and driving mechanisms of subsurface marine heatwaves in the Xisha Region DOI Creative Commons
Feng Gao, Cong Liu, Fangguo Zhai

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: May 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.

Language: Английский

The impact of marine heatwaves on surface phytoplankton chlorophyll-a in the South China Sea DOI
Yingjun Chen,

Chunyan Shen,

Hui Zhao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 175099 - 175099

Published: July 29, 2024

Language: Английский

Citations

4
The impact of environmental conditions on the heat tolerance of Acropora hyacinthus DOI
Hongmin Wang, He Zhao, Wentao Zhu

et al.

Journal of Experimental Marine Biology and Ecology, Journal Year: 2025, Volume and Issue: 585, P. 152096 - 152096

Published: March 6, 2025

Language: Английский

Citations

0
Eddy-induced modulation of marine heatwaves and cold spells in a tropical region: a case study in the natuna sea area DOI
Gandhi Napitupulu

Ocean Dynamics, Journal Year: 2025, Volume and Issue: 75(3)

Published: March 1, 2025

Language: Английский

Citations

0
Idiosyncratic patterns of Chlorophyll-a anomalies in response to marine heatwaves in the Adriatic Sea (Mediterranean Sea) over the last two decades DOI Creative Commons
Gregorio Motta, Valentina Olmo,

Luca Xamin

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 107144 - 107144

Published: April 1, 2025

In the open ocean, marine heatwaves (MHWs) have been associated to a decline of Chlorophyll-a (Chl-a) concentration in tropical and temperate areas while, at higher latitudes, they seem enhance phytoplankton productivity. Currently, uncertainties remain on outcomes MHWs primary production coastal heterogenous regions. We analyzed long-term modeled satellite-derived data sea surface temperature Chl-a Adriatic Sea (Mediterranean Sea), semi-enclosed basin where open-sea environmental conditions co-occur, explore responses MHWs. found that both low high anomalies were strictly dependent MHWs, although following direct or inverse relationships different areas, as consequence regional-scale heterogeneities nutrient availability, riverine inputs, circulation geomorphology. Along west coast shallow North Central Adriatic, frequency, duration intensity corresponded frequency peaks and/or increased anomalies, suggesting pronounced fluctuations with intense blooms alternating extremely events. Conversely, offshore deeper especially South inversely correlated indicating possible reduction biomass organic matter flow towards floor. Prolonged may therefore drive shifts ecosystem-wide effects pelagic areas. These multifaceted MHW-Chl-a interactions observed emphasize need for context-specific assessments environmentally complex regions develop management strategies addressing ecological socioeconomic issues arising from unrelenting increase anomalies.

Language: Английский

Citations

0
Long-term characteristics of marine heatwaves (1982–2021) in Indonesian water and their impact on upwelling (case study: Southern Java) DOI Creative Commons
Nining Sari Ningsih, Erlin Beliyana,

Ikliema Hassya Kamila

et al.

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: May 8, 2025

Intense and prolonged marine heatwaves (MHWs) have been observed in the Indonesian seas over past 40 years (1982–2021). The frequency duration of MHWs increased, while their maximum intensity has declined, reflecting impacts global warming. This study analyzed intense six key regions: Western Sumatra, Southern Java, Java Sea, Makassar Strait, Maluku Northern Papua. A heat budget analysis revealed that advection is primary driver sea surface temperature warming MHW events whereas entrainment played a more significant role other regions. Cross-correlation scatter plot analyses further indicated El Niño-Southern Oscillation (ENSO) Indian Ocean Dipole (IOD) also crucial formation. Notably, occurrences were frequent during ENSO phases than IOD phases, suggesting ENSO’s stronger influence. Among all regions, exhibited highest correlation between both Oceanic Niño Index Mode Index, underscoring influence this area. From June to August 1998 2021, upwelling weakened due acute events, with strongest suppression occurring eastern part region compared its central western areas. These extreme persistent oceans pose growing threat ecosystems fisheries, urgent need for research mitigation strategies.

Language: Английский

Citations

0
Historical Marine Cold Spells in the South China Sea: Characteristics and Trends DOI Creative Commons
Chunhui Li, Wenjin Sun,

Jinlin Ji

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(7), P. 1171 - 1171

Published: March 27, 2024

Marine cold spells (MCSs) are extreme ocean temperature events impacting marine organisms, yet their characteristics and trends in the South China Sea (SCS) historical period remain unclear. This study systematically analyzes sea surface (SST) MCSs SCS using satellite observation data (OISSTv2.1) from 1982 to 2022. The climatological mean SST ranges 22 °C near Taiwan Strait 29 Nansha Islands, showing notable variations. Annual anomalies demonstrate a heterogeneous spatial trend of approximately 0.21 ± 0.16 °C/decade (p < 0.01) across SCS, indicating an increase over time. MCS analysis uncovers non-uniformity frequency, with higher values Beibu Gulf Hainan Island, longer durations northeastern coastal areas. Statistical indicates normal distributions for frequency duration but skewness intensity cumulative intensity, reflecting values. Winter months exhibit larger occurrence areas intensities, illustrating seasonal variability. Anticipated changes will significantly impact ecological structure functioning SCS.

Language: Английский

Citations

2
The spatiotemporal characteristics and driving mechanisms of subsurface marine heatwaves in the Xisha Region DOI Creative Commons
Feng Gao, Cong Liu, Fangguo Zhai

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: May 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.

Language: Английский

Citations

0