Abstract

Based on the high-precision isotopic composition and concentration of dissolved inorganic carbon (DIC) in the Bering Sea waters, their scopes and pathways are estimated in the Pacific sector of the Arctic Ocean. Although δ¹³С(DIC) and [DIC] are not classical conservative tracers, these parameters show the presence of both Atlantic and Pacific marine waters similar to the Bering Sea waters in the basin of the East Siberian Sea, which is a zone of active interaction of river and marine waters. The spatial distribution of Pacific and Atlantic and river waters is estimated using a three-component mixing model along two sections of the East Siberian Sea. The Pacific component propagates from east to west approximately to 160° E (probably, more westward) skirting Wrangel Island not only from the north but also probably from the south. The East Siberian Sea contains waters similar to the Bering Sea summer surface waters of the open sea, which are removed to the northern shelf by the circular Bering Sea Current, and to the upper intermediate waters, which can be involved in the zone of the northern sea shelf due to upwelling or active mixing.

中文翻译：

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东西伯利亚海太平洋水域：δ13С(DIC) 和 [DIC] 特征识别

摘要

根据白令海水域的高精度同位素组成和溶解无机碳（DIC）浓度，估算了它们在北冰洋太平洋部分的范围和路径。虽然 δ ¹³ С(DIC) 和 [DIC] 不是经典的保守示踪剂，但这些参数表明，东西伯利亚海盆地中存在类似于白令海水域的大西洋和太平洋海水，这是一个活跃的区域河流和海水的相互作用。使用东西伯利亚海两个部分的三分量混合模型来估计太平洋、大西洋和河流水域的空间分布。太平洋成分从东向西大约传播到东经 160°（可能更向西），不仅从北部而且可能从南部绕过弗兰格尔岛。东西伯利亚海包含类似于白令海夏季公海表层水域的水域，这些水域被白令海环形洋流移至北部陆架，以及上部中间水域，可涉及北部地区。由于上升流或主动混合而形成的海陆架。