AbstractAnthropogenic activities are driving elevated N:P ratios in coastal waters and climate change. However, the ecological stability of plankton ecosystems under these combined stressors remains poorly understood. Using 32-day mesocosm experiments, we evaluated how subtropical plankton ecosystems respond to elevated N:P ratios (40:1) under present (20°C, 440 ppm CO2) and future (23°C, 1000 ppm ...
AbstractThe Indonesian throughflow (ITF) is a key component of the ocean thermohaline circulation, crucial for transporting heat and materials in the global ocean. Due to the complex hydrodynamic conditions and current patterns in the Indonesian Seas, accurate predictions of the ITF face multiple challenges, including the lack of long-term, simultaneous observations across various straits. In this ...
AbstractGeological storage of carbon dioxide (CO2) is a viable option for achieving large-scale and cost-effective reduction in global CO2 emissions. The Taixi Basin, spanning the Taiwan Strait, is a potential storage field for reducing CO2 emissions in the Fujian and Taiwan regions. It hosts multiple effective reservoir-seal combinations, with abundant sandstone formations. These combinations divide ...
AbstractSandy beaches are an important passage for the transport of various forms of nitrogen from land to sea. However, export fluxes of these forms of nitrogen and the mechanisms controlling their transformation remain elusive. Using the 224Ra/228Th disequilibrium approach, we estimated export fluxes of dissolved inorganic carbon and dissolved inorganic nitrogen at three intertidal sandy beaches ...
AbstractMacroalgae aquaculture ecosystems have been increasingly recognized as coastal biogeochemical hotspots of air–sea net ecosystem carbon dioxide (CO2) exchange; however, their roles in regulating the temporal variability of net ecosystem methane (CH4) exchange (NME) receive little attention mainly due to very limited data availability. Here, we applied the eddy covariance (EC) technique to acquire ...
AbstractThe biological carbon pump (BCP) plays a critical role in sequestering atmospheric CO2 into the deep ocean; however, the influence of fine-scale oceanic processes, encompassing mesoscale and submesoscale features, on basin-scale carbon export remains poorly understood. Using a high-resolution physical-biogeochemical model and Biogeochemical-Argo (BGC-Argo) observations in the Subtropical Countercurrent ...
AbstractThe biological carbon pump (BCP) transfers CO2 from the surface ocean to depth, helping regulate atmospheric CO2 and accounting for roughly one-third of glacial–interglacial CO2 changes. Its strength is widely estimated from satellite-based relationships between net primary production (NPP) and export efficiency, but these approaches cannot distinguish organic matter rapidly recycled near ...
AbstractProtactinium-231 (231Pa) is a particle-reactive radionuclide whose distribution integrates the effects of scavenging and ocean transport, making it a powerful tracer of particle dynamics and a potentially useful tracer for ocean circulation. We present the first global 231Pa inverse model that couples reversible scavenging by biogenic and lithogenic particles with two explicitly parameterized ...
AbstractSpring sea ice cover in the Barents-Kara Seas (BKS) exhibits notable interannual to decadal variability with spatial patterns distinct from winter. While previous studies suggest that internal climate variability dominates, the specific drivers remain to be identified. Using observations and model simulations, we reveal that atmospheric teleconnection from the western North Pacific accounts ...
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