Using Excess 3 He to Estimate Southern Ocean Upwelling Time Scales
Using Excess 3 He to Estimate Southern Ocean Upwelling Time Scales
复制标题
使用过量 3 He 估算南大洋上升流时间尺度
DOI：
10.1029/2020gl087266
复制
发表时间：
2020
影响因子：
5.2
通讯作者：
Jenkins, William J.
中科院分区：
文献类型：
--
作者：
Jenkins, William J.
利用最近汇编的全球海洋溶解氦同位素和氦、氖浓度资料，估算南大洋热液~ 3 He的存量为4.9 ± 0.6 × 104 moles。在假设大部分热液来源的3 He在那里上涌的情况下，我们使用最近对全球热液3 He通量的估计，根据水团和上涌边界的假设，确定电子折叠停留时间为99 ± 18年。我们的估计是在最近的南大洋环流模型获得的值的广泛范围内。
Using a recently compiled global marine data set of dissolved helium isotopes and helium and neon concentrations, we make an estimate of the inventory of hydrothermal3He in the Southern Ocean to be 4.9 ± 0.6 × 104moles. Under the assumption that the bulk of the hydrothermally sourced3He is upwelled there, we use recent estimates of the global hydrothermal3He flux to determine ane‐folding residence time of 99 ± 18 years, depending on assumptions of water mass and upwelling boundaries. Our estimate is within the broad range of values obtained from recent Southern Ocean circulation models.