Role of Eddies in Chlorofluorocarbon Transport in Wind-Driven Oceanic Layers
Role of Eddies in Chlorofluorocarbon Transport in Wind-Driven Oceanic Layers
复制标题
涡流在风驱动海洋层中氯氟烃输运中的作用
DOI：
10.1175/jpo3125.1
复制
发表时间：
2007
影响因子：
3.5
通讯作者：
Y. Yamanaka
中科院分区：
文献类型：
--
作者：
A. Ishida;Y. Sasai;Y. Yamanaka
本文利用高分辨率数值模式研究了氯氟烃(CFCs)在海洋中的全球分布和迁移。作者着重研究了俯冲和通风等风力驱动过程对表面和温跃层中CFC-11分布的影响。在海洋地区确定了示踪剂库存的局部最大值。南太平洋的两个主要吸收区域位于南美洲西部和新西兰东北部，位于亚热带和亚北极地区之间的边界纬度。在北太平洋和南印度洋，示踪剂局部极大值的位置随着密度的增加而由西向东迁移。通过比较冬季混合层深度和平均环流，讨论了水的形成与示踪剂分布的关系。分析了经向翻转单体的平均输送和涡动输送对示踪输送的贡献。静止的涡流对……有很大的影响。
Abstract In this study the global distribution and transport of chlorofluorocarbons (CFCs) in the oceans are investigated using a high-resolution numerical model. The authors focus on the effects of wind-driven processes such as subduction and ventilation on the distribution of CFC-11 within surface and thermocline layers. Local maxima of tracer inventory are identified in oceanic regions. Two major absorption regions in the South Pacific Ocean are located west of South America and northeast of New Zealand in boundary latitudes between subtropical and subantarctic areas. In the North Pacific and south Indian Oceans, the positions of the local maxima of tracers migrate west–east with increasing density. The relationship between water formation and tracer distribution is discussed by comparing the wintertime mixed layer depth and mean circulation. The contributions of mean and eddy transport of the meridional overturning cells to tracer transport are analyzed. Stationary eddies have a large impact in the So...