AbstractEstuaries are essential for the ocean's mass balance of terrestrial dissolved organic matter (DOM). Dissolved black carbon (DBC) constitutes the largest known persistent fraction of DOM in marine environments. However, the alterations of DBC during its transport through estuaries remain largely unknown. In this study, we conducted six sampling cruises across three estuaries in China, which ...
AbstractOceanic subsurface eddies are believed to potentially impact biogeochemical cycles; however, our understanding remains limited due to sparse in situ observations. This study presents observation of an intrathermocline eddy (ITE) in the tropical western North Pacific and provides a comprehensive analysis of how ITE modulate nutrient dynamics by both diapycnal mixing and lateral transport. Pronounced ...
AbstractThe recently launched Surface Water and Ocean Topography (SWOT) satellite provides an unprecedented two-dimensional measurement of the sea surface height (SSH) down to the oceanic submesoscale of 1–10 km. Using this measurement to make substantial progress requires the separation of vortical and wavy motions owing to their contrasting ramifications for the energy transfer; however, the separation ...
AbstractThe ocean economic input-output (IO) tables are essential databases for analyzing the ocean economy. However, the IO tables issued by Chinese government’s statistical department adopt the conventional economic sector classifications, which fall short in capturing the heterogeneity of the ocean and land sectors. To fill this gap, we used the stripping coefficient method to construct the ocean ...
AbstractMangroves are a carbon-dense and highly productive ecosystem but can experience massive dieback under environmental extremes. Climatic oscillations, such as the El Niño–Southern Oscillation (ENSO), are major drivers of global climate variability, yet their impact on mangrove growth at the global scale remains uncertain. Here, using long-term satellite observations from 2001 to 2020, we show ...
AbstractMicrobial metabolism plays a critical role in global carbon cycling; however, our understanding of bacterial metabolic processes across the full depth of tropical oligotrophic oceans remains incomplete. The South China Sea (SCS) and Western Pacific (WP), as contrasting oligotrophic environments, provide an ideal setting to investigate this unresolved issue. This study presented a comprehensive ...
AbstractAn increasing number of studies have documented the ecological importance of phago-mixotrophy within phytoplankton communities, especially in open ocean environments. We know less about the distribution and function of such phytoplankton within marginal seas. This study was an investigation of phago-mixotrophy among nanoeukaryotic phytoplankton along a shelf-to-off-shelf transect in the South ...
AbstractOceanic cycling of arsenic (As) is closely linked to that of nutrient and trace metal elements such as phosphorus (P) and iron (Fe), primarily due to similar particle-reactivity of As and P and their association with particulate carriers including Fe (oxyhydr)oxides. However, this particle scavenging effect is rarely reflected in seawater depth profiles of total dissolved inorganic As (DAs)...
SummaryFinancial institutions, especially leading asset managers that play critical roles in allocating financial flows, are essential for climate change mitigation. Herein, we evaluate portfolio carbon footprints, which are the greenhouse gas (GHG) emissions enabled by equity investment, of the 500 leading global asset managers. We find that the volume of financed GHG emissions increased from 8.0 ...
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