Origins and pathways of the subsurface and intermediate water masses of the Indonesian Throughflow derived from historical and Argo data
Origins and pathways of the subsurface and intermediate water masses of the Indonesian Throughflow derived from historical and Argo data
复制标题
根据历史和 Argo 数据得出的印度尼西亚通流的地下和中层水团的起源和路径
作者：
Yu Xiaolin;Zhang Yanhui;Wang Fan
基于ARGO资料和2001年世界海洋数据库(WOD01)的历史温/盐度资料，通过分析典型等水层上的盐度分布，讨论了印尼贯流(ITF)地区次表层和中间水团的来源和扩散途径。结果表明，次表层水主要来自北太平洋，而中层水同时来自北太平洋和南太平洋，甚至可能来自印度洋。北太平洋次表层水和北太平洋中间水贯穿苏拉威西海、马卡萨海峡和弗洛雷斯海，主导着印度尼西亚群岛的西部。随着水深的增加，北太平洋水团的特征更加明显。在该水域的东部，高盐度南太平洋次表层水被Halmahera和新几内亚之间的强盐度锋所阻挡。东部内陆中层水的盐度高于北太平洋中层水和南极中层水(AAIW)，可能来自次表层水与来自太平洋的AAIW的垂直混合，也可能来自AAIW锋面向北延伸至印度洋的前方。
On the basis of Argo data and historic temperature/salinity data from the World Ocean Database 2001 (WOD01 origins and spreading pathways of the subsurface and intermediate water masses in the Indonesian Throughflow (ITF) region were discussed by analyzing distributions of salinity on representative isopycnal layers. Results were shown that, Subsurface water mostly comes from the North Pacific Ocean while the intermediate water originates from both the North and South Pacific Ocean, even possibly from the Indian Ocean. Spreading through tire Sulawesi Sea, the Makassar Strait, and the Flores Sea, the North Pacific subsurface water and the North Pacific Intermediate water dominate the western part of the Indonesian Archipelago. Furthermore its the depth increases, the features of the North Pacific sourced water masses become more obvious. In the eastern part of the waters, high salinity South Pacific subsurface water is blocked by a strong salinity front between Halmahera and New Guinea. Intermediate water in the eastern interior region owns salinity higher than the North Pacific intermediate water and the antarctic intermediate water (AAIW), possibly coming from the vertical mixing between subsurface water and the AAIW from the Pacific Ocean, and possibly coming front the northward extending of the AAIW front the Indian Ocean as well.