Bering Strait Mooring Data, 2017-2018

This is an archive of data from moorings deployed in Bering Strait from summer 2017 to summer 2018. Mooring deployments were funded by the National Science Foundation (NSF)-Arctic Observing Network award PLR (Division of Polar Programs)-1304052 (PI (Principal Investigator): Woodgate, Heimbach and Nguyen). The mooring work required 2 dedicated cruises: - in 2017 (7th - 15th July), a ~ 9 day cruise on the US (United States) vessel Norseman2 deployed the moorings. Some CTD (conductivity, temperature, and depth) sections were run on this cruise, and those data are archived separately. - in 2018 (10th - 19th August), a ~ 10 day cruise on the US vessel. For 2017 to 2018, a total of three moorings were deployed: - two moorings (A2 and A4) in the US channel of the strait, - one mooring (A3) at a site just north of the strait. In what follows, mooring names include a two digit suffix to represent year of deployment. Sites A2, and A3 were established in 1990. A2 and A3 have been occupied almost continuously (all years except 1996-1997) since then. Site A4 was established in 2001. Mooring location A2 is in the middle of the eastern (Alaskan side) channel. Mooring location A3 is just north of the strait, immediately east of the Russian-US EEZ (Exclusive Economic Zone) line. Experience has shown that site A3 samples both eastern and western channel water. Mooring location A4 is close to the Alaskan coast and allows measurement of the Alaskan Coastal Current. For an overview of previous and on-going Bering Strait mooring work, please see http://psc.apl.washington.edu/BeringStrait.html. Moorings carry a variety of instruments, listed in the table below. All records are year-round, sampling hourly or more frequently (Time Interval. in table below). Data from instruments marked with * are not included in this archive. For access to these data, please contact the named PI in list below table.本数据集归档了2017年夏季至2018年夏季于白令海峡部署的锚系观测潜标所获取的数据。本次锚系观测潜标的部署工作由美国国家科学基金会（National Science Foundation, NSF）北极观测网络项目PLR（极地项目分部）-1304052资助，项目首席研究员（Principal Investigator, PI）为Woodgate、Heimbach与Nguyen。 本次锚系观测工作依托两次专项科考航次完成： ——2017年7月7日至15日：搭乘美国籍科考船Norseman2开展为期约9天的航次，完成锚系潜标的部署。本次航次同步开展了部分CTD（电导率、温度与深度）断面测量，相关数据已单独归档。 ——2018年8月10日至19日：搭乘美国籍科考船开展为期约10天的航次。 2017年至2018年期间，本次共部署3套锚系潜标： ——2套潜标（A2与A4）布放于海峡的美国航道内； ——1套潜标（A3）布放于海峡北侧附近海域。 下文提及的锚系潜标名称均带有两位数字后缀，用于标识其部署年份。A2与A3站位于1990年设立，自设立以来除1996年至1997年外，A2与A3站位几乎每年都开展了持续观测。A4站位于2001年设立。 A2站位位于东侧（阿拉斯加一侧）航道的中部。A3站位位于海峡北侧，紧邻俄美专属经济区（Exclusive Economic Zone, EEZ）分界线东侧。过往观测经验表明，A3站位可同时采集到东侧与西侧航道的海水数据。A4站位紧邻阿拉斯加海岸，可用于监测阿拉斯加沿岸流。 如需了解白令海峡锚系观测工作的既往与当前进展，请访问网址：http://psc.apl.washington.edu/BeringStrait.html。 锚系潜标搭载了多款观测仪器，详情见下表。所有观测数据均为全年连续采集，采样频率为每小时1次或更高（采样间隔详见下表）。标注有星号（*）的仪器所采集的数据未纳入本数据集归档范围。如需获取此类数据，请联系下表所列的首席研究员。