Radiotracers in the Black Sea

1986年4月切尔诺贝利核反应堆事故 导致了各种各样的脉冲式输送到黑海 放射性核素。通过研究切尔诺贝利核电站 具有不同化学性质的示踪剂，包括清除和去除 过程已经能够遵循颗粒反应 物种以及好氧之间的物理混合速率 和缺氧沃茨。 在所有这些研究中，一个令人惊讶的因素是， 颗粒和水在垂直和水平方向的快速流动 运输对所有元素都很重要。 这项建议 允许跟进早期的工作，并增加了重要的 1988年KNORR中缺少的科学成分- 基于研究，即审查的北方黑海。 具体而言，乘坐一艘 1989年4月，苏联研究船。 在这次航行中， 从该研究区域获得了最近的样品， 对完成该盆地的地球化学研究至关重要。

The April 1986 accident at the Chernobyl nuclear power reactor resulted in the pulse-like delivery to the Black Sea of a variety of fallout radionuclides. By studying a number of Chernobyl tracers with differing chemistries, both scavenging and removal processes have been able to be followed for particle-reactive species as well as the rates of physical mixing between the oxic and anoxic waters. A surprising element in all these studies is the rapid vertical and horizontal rates of particle and water transport which are important for all elements. This proposal allows for follow up on the earlier work and adds an important scientific component which is missing from all of the 1988 KNORR- based studies, namely an examination of the northern Black Sea. Specifically, access was gained to the Danube fan region aboard a Soviet research vessel in April 1989. On this cruise the only recent samples from this study area were obtained, which are crucial for completing studies of this basin's geochemistry.