Geothermal Heating in the Panama Basin: 1. Hydrography of the Basin
Geothermal Heating in the Panama Basin: 1. Hydrography of the Basin
复制标题
巴拿马盆地地热供暖：1. 盆地水文学
作者：
Banyte D
巴拿马盆地是研究深海上升流的实验室。该盆地只有一条穿过狭窄的厄瓜多尔海沟的深水流入通道。预计通过海沟的临界流入量达到 0.34 ± 0.07 m/s，导致深海水量流入为 0.29 ± 0.07 Sv。同一条沟渠承载着盆地水的回流，该回流从底部上方 200 米处开始，比卡内基岭鞍处下一个可能的深水交换路径的深度深约 400 米。温度-盐度图的曲率用于区分地热加热对巴拿马盆地深处水域的影响，该水域的深度高达 2,200 米，比深海水层上边界高出约 500 米。
The Panama Basin serves as a laboratory to investigate abyssal water upwelling. The basin has only a single abyssal water inflow pathway through the narrow Ecuador Trench. The estimated critical inflow through the Trench reaches 0.34 ± 0.07 m/s, resulting in an abyssal water volume inflow of 0.29 ± 0.07 Sv. The same trench carries the return flow of basin waters that starts just 200 m above the bottom and is approximately 400‐m deeper than the depth of the next possible deep water exchange pathway at the Carnegie Ridge Saddle. The curvature of temperature‐salinity diagrams is used to differentiate the effect of geothermal heating on the deep Panama Basin waters that was found to reach as high as 2,200‐m depth, which is about 500 m above the upper boundary of the abyssal water layer.