The newly proposed Degree of Nutrient Consumption (DNC) of upwelled waters was used to evaluate the upwelling process in Nanwan Bay off the southern tip of Taiwan. DNC values were found to be low in subsurface waters or in newly upwelled waters. In general, a low DNC value was detected alongside other traditionally used upwelling indicators such as lower temperature, pH and % oxygen saturation but higher salinity, nutrients and chlorophyll a. On the other hand, the DNC value could be several times higher in aged upwelled water found in the surface layer.
Chen, Chen-Tung Arthur; Wang, Bing-Jye; and Hsing, Li-Yu
"Upwelling and Degree of Nutrient Consumption in Nanwan Bay, Southern Taiwan,"
Journal of Marine Science and Technology: Vol. 12
, Article 11.
Available at: https://jmstt.ntou.edu.tw/journal/vol12/iss5/11