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- W2983898076 abstract "Abstract The North Pacific Ocean is a significant carbon sink region, but little is known about the dynamics of particulate organic carbon (POC) and the influences of physical and biological processes in this region at the basin scale. Here, we analysed high-resolution surface POC data derived from MODIS-Aqua during 2003–2017, together with satellite-derived sea surface chlorophyll and temperature (SST). There are large spatial and temporal variations in surface POC in the North Pacific. Surface POC is much lower in the subtropical region (<50 mg m −3 ) than in the subarctic region (>100 mg m −3 ), primarily resulting from the south-to-north variability in biological production. Our analyses show significant seasonal and interannual variability in surface POC. In particular, there is one peak in winter-spring in the western subtropical region and two peaks in late spring and fall in the western subarctic region. Surface POC is positively correlated with chlorophyll (r = ~1) and negatively correlated with SST ( r = ~−0.45, P < 0.001) south of 45°N, indicating the strong influence of physically driven biological activity on the temporal variability of POC in the subtropical region. There is a significantly positive but relatively lower correlation coefficient (0.6–0.8) between POC and chlorophyll and an overall non-significantly positive correlation between POC and SST north of 45°N, reflecting the reduction in the POC standing stock due to the fast sinking of large particles. The climate modes of the Pacific Decadal Oscillation, El Niño–Southern Oscillation and North Pacific Gyre Oscillation have large impacts on POC in various seasons in the subtropical region and weak influences in the subarctic region. Surface POC was anomalously high after 2013 (increased by ~15%) across the basin, which might be the result of complex interactions of physical and biological processes associated with an anomalous warming event (the Blob)." @default.
- W2983898076 created "2019-11-22" @default.
- W2983898076 creator A5017515798 @default.
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- W2983898076 creator A5048954608 @default.
- W2983898076 creator A5068575891 @default.
- W2983898076 date "2019-11-11" @default.
- W2983898076 modified "2023-10-18" @default.
- W2983898076 title "Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003–2017" @default.
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- W2983898076 doi "https://doi.org/10.1038/s41598-019-53025-4" @default.
- W2983898076 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6848136" @default.
- W2983898076 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31712742" @default.