We derived the first detailed and accurate estimates of the location, cross‐sectional area, length, and depth of the Aleutian Island passes, which are important bottlenecks for water exchange between the North Pacific Ocean and the Bering Sea. Our pass descriptions utilized original bathymetric data from hydrographic smooth sheets, which are of higher resolution than the navigational chart data used for earlier pass size estimates. All of the westernmost Aleutian passes, from Kavalga to Semichi, are larger (18%–71%) than previously reported, including Amchitka Pass (+23%), the largest in the Aleutians. Flow through Chugul Pass, previously reported as the largest pass in the Adak Island area, is blocked on the north side by Great Sitkin and several other islands. Collectively, these smaller passes (Asuksak, Great Sitkin, Yoke, and Igitkin) are only about half the size of Chugul Pass. The important oceanographic and ecological boundary of Samalga Pass occurs in a location where the cumulative openings of the eastern Aleutian passes equal the minimal opening of Shelikof Strait, carrier of the warmer, fresher water of the Alaska Coastal Current that eventually flows northward, through Samalga and the other eastern passes, into the Bering Sea and Arctic Ocean.

中文翻译：

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阿留申群岛的通行证：第一个详细说明

我们对阿留申群岛通道的位置，截面积，长度和深度进行了首次详细而准确的估算，这是北太平洋与白令海之间水交换的重要瓶颈。我们的通行证说明使用了水文平滑片的原始测深数据，该分辨率比用于早期通行证大小估算的航海图数据要高。从卡瓦加（Kavalga）到塞米奇（Semichi），所有最西端的阿留申通行证都比以前报告的要大（18％–71％），其中包括阿留申最大的安其奇卡通行证（+ 23％）。通过Chugul Pass的流量以前被报道为Adak岛地区最大的流量，在北侧被Great Sitkin和其他几个岛屿阻塞。总的来说，这些较小的通行证（Asuksak，Great Sitkin，Yoke，和Igitkin）的大小只有Chugul Pass的一半。萨马拉加Pass口的重要海洋学和生态学边界发生在东阿留申群岛通行证的累积开口等于谢利科夫海峡的最小开口的位置，谢利科夫海峡是阿拉斯加沿海水流的较暖和淡水的载体，该水最终向北流经萨马拉加和另一条东部通道进入白令海和北冰洋。