Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate

Chen, Yuanjie; Zhang, Zhaoru; Wang, Xuezhu; Liu, Xiaohui; Zhou, Meng

doi:10.1002/joc.8132

Cited by 2 publications

(2 citation statements)

References 77 publications

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“…As shown in Figures 6d–6f, freshening of the Ross Sea can enhance onshore heat transport and induce marked warming over the eastern Ross Sea shelf. The relatively narrow eastern shelf allows warm water to reach the RIS front and threatens the stability of the RIS (Chen et al., 2023). In the MeltM and MeltH simulations, there is more heat transport into the base of the RIS through the ESB (Figure 6d–6f), resulting in an increase in the basal melt rate of the RIS by about 6% and 9%, respectively (Figure 15), with high melting rates present at the RIS front.…”

Section: Resultsmentioning

confidence: 99%

The Response of Ross Sea Shelf Water Properties to Enhanced Amundsen Sea Ice Shelf Melting

Xie,

Zhang,

Chen

et al. 2024

JGR Oceans

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Ice shelves in the Amundsen Sea have experienced the most rapid melting in the Antarctic and are expected to accelerate throughout this century under climate warming. In this study, a high‐resolution ocean‐sea ice‐ice shelf model is employed to conduct sensitivity experiments to explore the effects of increasing melt rates of the Amundsen Sea ice shelves on hydrography, sea ice and ice shelf in the Ross Sea. The results indicate that the substantial inflow of meltwater significantly freshens the Ross Sea, inhibiting the formation and export of the Dense Shelf Water, the volume of which is reduced by 19%–33% on the shelf. Temperatures in the eastern and western Ross Sea exhibit different responses to the enhanced meltwater input. The freshening of the western Ross Sea weakens the mesoscale eddy activities which are efficient in carrying warm Circumpolar Deep Water onto the shelf, leading to an average temperature decrease of 0.02–0.08°C. Conversely, in the eastern Ross Sea, there is a marked warming outside the shelf under increased meltwater, which results from zonal pressure gradients associated with the meltwater distributions. This consequently causes stronger on‐shelf heat transport and shows warming of 0.12–0.22°C on the eastern Ross Sea shelf. The narrow shelf in the eastern Ross Sea allows the warmer water to reach the Ross Ice Shelf (RIS) front, resulting in an about 6%–9% increase in the RIS melting. These results suggest a possible mechanism for acceleration in the RIS melting in the future that is associated with enhanced meltwater inflow.

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Section: Resultsmentioning

confidence: 99%

The Response of Ross Sea Shelf Water Properties to Enhanced Amundsen Sea Ice Shelf Melting

Xie,

Zhang,

Chen

et al. 2024

JGR Oceans

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“…They also act as carbon sinks, making them crucial in the fight against climate change [20]. Additionally, oceans trap a significant amount of heat [21,22], helping to regulate global temperatures, which are increasing because of global warming. Because of these factors, oceans are considered essential in driving several Sustainable Development Goals (SDGs) [23].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of Climatic Threats and Adaptation of Marine Biodiversity

Dube

2024

JMSE

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Oceans play a vital role in socioeconomic and environmental development by supporting activities such as tourism, recreation, and food provision while providing important ecosystem services. However, concerns have been raised about the threat that climate change poses to the functions of oceans. This study examines the impacts, threats, and adaptation strategies of climate change and marine biodiversity. Using bibliometric and secondary data analysis, this study determines that climate change leads to rising sea temperatures, marine heatwaves, acidification, and increasing sea levels. These factors undermine the significance of ocean ecosystem services. This study also identifies the significant risks posed by climate change to marine species diversity and distribution, primarily through habitat degradation and shifts in species ranges. Scholarly focus on these challenges has grown over time, focusing on adaptation strategies and building resilience to mitigate adverse impacts. This study critically evaluates various adaptation measures, including nature-based and human-based solutions such as habitat restoration, policy and legislative frameworks, and their potential to protect marine ecosystems. It provides detailed discussions on the effectiveness of adaptation strategies such as marine protected areas (MPAs), mangrove and coral reef restoration, and species range shifts. This review also emphasises the significance of indigenous knowledge systems and community participation in marine conservation efforts to achieve holistic and sustainable management. It highlights the need for enhanced international cooperation and a transdisciplinary approach to address the complex interplay between climate change and marine biodiversity. Additionally, this study suggests that funding for research gaps and conservation can be secured through tourism revenue and other climate funding mechanisms.

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Interannual variations of heat budget in the lower layer of the eastern Ross Sea shelf and the forcing mechanisms in the Southern Ocean State Estimate

Cited by 2 publications

References 77 publications

The Response of Ross Sea Shelf Water Properties to Enhanced Amundsen Sea Ice Shelf Melting

The Response of Ross Sea Shelf Water Properties to Enhanced Amundsen Sea Ice Shelf Melting

A Comprehensive Review of Climatic Threats and Adaptation of Marine Biodiversity

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