| CHEN Chentung Arthur,HSING Liyu. 2005. Degree of nutrient consumption as an aging index of upwelling or vertically mixed water in the northern Taiwan Strait. Acta Oceanologica Sinica, (1):115－124 |
| Degree of nutrient consumption as an aging index of upwelling or vertically mixed water in the northern Taiwan Strait |
| Degree of nutrient consumption as an aging index of upwelling or vertically mixed water in the northern Taiwan Strait |
| Received:April 08, 2004 Revised:October 28, 2004 |
| DOI： |
| Key words:upwelling degree of nutrient consumption Taiwan Strait dissolved organic nitrogen dissolved organic phosphorus |
| 中文关键词: upwelling degree of nutrient consumption Taiwan Strait dissolved organic nitrogen dissolved organic phosphorus |
| 基金项目: |
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| Abstract: |
| In order to determine the relative aging status ofupwelled or vertically mixed water in the northern Taiwan Strait,a recently developed method of calcularing the degree of nutrient consumption (DNC) was employed.Upwelling was detected at a water depth of about 75 m in summer.Bottom waters in the aphoric zone and newly-upwelled waters in the euphoric zone were found to be low in terms of their DNC.In general,a low DNC was noted alongside the other traditional upwelling indicators,such as lower temperature and degree of oxygen saturation,but higher salinity,apparent oxygen utilization,nutrient contents and chlorophyll-a.Enhanced vertical mixing,but without an apparent upwelling signal,was detected near the same location in winter. |
| 中文摘要: |
| In order to determine the relative aging status ofupwelled or vertically mixed water in the northern Taiwan Strait,a recently developed method of calcularing the degree of nutrient consumption (DNC) was employed.Upwelling was detected at a water depth of about 75 m in summer.Bottom waters in the aphoric zone and newly-upwelled waters in the euphoric zone were found to be low in terms of their DNC.In general,a low DNC was noted alongside the other traditional upwelling indicators,such as lower temperature and degree of oxygen saturation,but higher salinity,apparent oxygen utilization,nutrient contents and chlorophyll-a.Enhanced vertical mixing,but without an apparent upwelling signal,was detected near the same location in winter. |
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