期刊
GEOPHYSICAL RESEARCH LETTERS
卷 40, 期 21, 页码 5728-5734出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2013GL058300
关键词
POC flux; primary production; sediment trap; East China Sea
资金
- National Science Council of Taiwan [NSC101-2611-M-110-015-MY3]
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 36.95.8 mg-C m(-2) d(-1) without EWE effects. With EWE effects, however, the POC export flux (51.713.2 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.
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