Bottom Currents in the Hudson Canyon
Bottom Currents in the Hudson Canyon
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哈德逊峡谷的底流
作者：
G. H. Keller;D. Lambert;G. Rowe;Nicholas Staresinic
在哈德逊峡谷的底部电流的现场测量显示，目前的制度的特点是一个明显的反向流动向上和向下的峡谷。速度通常为每秒8至15厘米，有时在峡谷的上部和中部达到每秒27厘米。尽管α 2.5天的水流记录显示了向峡谷上方的净输送，但潜水器Alvin的66次水流测量结果、沉积物质地和有机碳的分析以及底栖动物群-营养物关系的确定表明，从长远来看，存在细粒物质通过峡谷向外大陆隆起的净输送。
In-place measurements of the bottom currents in the Hudson Canyon reveal that the current regime is characterized by a pronounced reversal of flow up and down the canyon. Velocities are commonly of the order of 8 to 15 centimeters per second, reaching 27 centimeters per second on occasion in the upper and central portion of the canyon. Although α 2.5-day recording of currents showed a net transport upcanyon, a combination of 66 current measurements from the submersible Alvin, the analysis of sediment texture and organic carbon, and the determination of the benthic fauna-nutrient relationship indicate that over the long term there is a net transport of fine material through the canyon to the outer continenital rise.