Kelvin-Helmholtz billow intensity determines effect on pelagic ecosystems in the Kuroshio

Echo sounder images revealed weak and strong Kelvin-Helmholtz (KH) billow conditions produced over a seamount along the Kuroshio in two separate surveys. This dataset includes CTD information, and chlorophyll a and nitrate profiles used for the analyses needed to describe the effects of varying KH billow intensities on pelagic ecosystems in the Kuroshio. Vertical profiles of temperature, nitrates and chlorophyll a were plotted, using Surfer 13, for a time-series survey over K seamount and along two transects surveyed during each cruise. KH billows in the ocean appear to contribute to the vertical transport of nutrients, which promotes chlorophyll a production. Shallow billows, regardless of vertical scale seem to contribute to subsurface chlorophyll production by entrainment of ambient dissolved inorganic nutrients. Deeper billows, on the other hand, have a more direct role in resuspending materials from the seafloor.

回声测深图像揭示了在黑潮沿线的海山区域，在两次独立调查中产生的弱与强凯尔文-赫尔姆霍茨（KH）波涛条件。本数据集包含了CTD信息，以及用于描述不同KH波涛强度对黑潮浮游生态系统影响的分析所需的叶绿素a和硝酸盐剖面。利用Surfer 13软件绘制了温度、硝酸盐和叶绿素a的垂直剖面图，这些图是在对K海山及其在每次巡航期间进行的两条航线进行的时间序列调查中绘制的。海洋中的KH波涛似乎促进了营养物质的垂直传输，进而促进了叶绿素a的生成。浅层波涛，无论其垂直尺度如何，似乎通过环境溶解无机营养物的夹带作用，促进了次表层叶绿素的生成。另一方面，深层波涛在将海底物质重新悬浮方面发挥着更直接的作用。