|Title:||Enhanced POC export in the oligotrophic northwest Pacific Ocean after extreme weather events||Authors:||Kuo-Shu Chen
|Issue Date:||24-Oct-2013||Publisher:||American Geophysical Union||Journal Volume:||40||Journal Issue:||21||Start page/Pages:||pp.5728-5734||Source:||Geophysical Research Letters||Abstract:||
To study effects of extreme weather events (EWEs, e.g., dust storm and typhoon) on the export of particulate organic carbon (POC) measured by a floating sediment trap in the oligotrophic ocean, eight sea-going expeditions were conducted in the oligotrophic northwest Pacific (NWP) in 2007 and 2008, covering all four seasons and the passage of several EWEs. Results of year-round field observations demonstrate that the POC export fluxes in the oligotrophic NWP did not exhibit apparent seasonal variations yielding an average flux of 36.9 ± 5.8 mg-C m-2 d-1 without EWE effects. With EWE effects, however, the POC export flux (51.7 ± 13.2 mg-C m-2 d-1) showed an approximately 40% increase compared to the average flux measured without EWE effects. These results suggest that EWEs can trigger elevated POC export from the euphotic zone in the oligotrophic ocean.
|Appears in Collections:||海洋生物研究所|
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