Direct Observations of North Pacific Ventilation: Brine Rejection in the Okhotsk Sea
Direct Observations of North Pacific Ventilation: Brine Rejection in the Okhotsk Sea
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DOI：
10.1126/science.1088692
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发表时间：
2003-12
期刊：
影响因子：
56.9
通讯作者：
A. Shcherbina;L. Talley;D. Rudnick
中科院分区：
文献类型：
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作者：
A. Shcherbina;L. Talley;D. Rudnick
伴随着沿海冰川形成的卤水排斥，是北极和南极几个全球重要水团通风的原因。然而，以前对这一过程的大多数研究都是间接的，基于热量收支分析或暖季水柱清单。在这里，我们介绍了从冬季系泊观测中直接测量鄂霍次克海卤水拒绝和北太平洋中间水形成的情况。在一个多月的时间里，观测到了由局部冰层形成明确造成的稳定的、近乎线性的盐度上升。
Brine rejection that accompanies ice formation in coastal polynyas is responsible for ventilating several globally important water masses in the Arctic and Antarctic. However, most previous studies of this process have been indirect, based on heat budget analyses or on warm-season water column inventories. Here, we present direct measurements of brine rejection and formation of North Pacific Intermediate Water in the Okhotsk Sea from moored winter observations. A steady, nearly linear salinity increase unambiguously caused by local ice formation was observed for more than a month.