Geochemical observations of seawater in the eastern Eurasian Basin, Arctic Ocean, 2018

The 2018 cruise was conducted aboard the Research Vessel Akademik Tryoshnikov (AT) in August - September, 2018 as part of the Nansen and Amundsen Basins Observational System II (NABOS-II) project. A total of 126 stations were occupied during the main cruise, including 134 separate CTD casts. Stations were split between three primary groups: NABOS, Changing Arctic Transpolar System (CATS), and Trans-Arctic Ice (TICE). Stations occupied by the CATS group included AT18-001 through AT18-026, AT18-051 and AT18-052, where “AT18-” stands for Akademik Tryoshnikov 2018. The TICE group (stations AT18-082 through AT18-088, AT18-090, AT18-101) was primarily concerned with the deployment of autonomous sensor suites on (or in) pack ice. A total of 92 hydrographic stations were occupied by the NABOS group during the cruise, including AT18-028 through AT18-050 and AT18-054 through AT18-126, minus the intermittent ice stations. At all but 6 of these stations, water samples were collected for a variety of chemical and biological measurements.

本航次于2018年8月至9月由“阿克德米克·特列奥什尼科夫号”科考船（Research Vessel Akademik Tryoshnikov，简称AT）执行，作为南森与阿蒙森海盆观测系统II（Nansen and Amundsen Basins Observational System II，简称NABOS-II）项目的组成部分。本次主航次共完成126个观测站位的作业，包含134次独立的CTD（温盐深剖面仪，Conductivity-Temperature-Depth）施放。所有站位分为三个核心组别：NABOS、北极变化跨极系统（Changing Arctic Transpolar System，简称CATS）以及跨北极冰区（Trans-Arctic Ice，简称TICE）。其中CATS组覆盖的站位为AT18-001至AT18-026、AT18-051及AT18-052，“AT18-”指代“阿克德米克·特列奥什尼科夫号2018年航次”。TICE组的站位为AT18-082至AT18-088、AT18-090、AT18-101，该组主要负责在浮冰（或冰内）部署自主传感器套件。本次航次中NABOS组共完成92个水文观测站位的作业，覆盖范围为AT18-028至AT18-050、AT18-054至AT18-126（剔除间歇性冰站）。除其中6个站位外，其余所有站位均采集了水样，用于开展各类化学与生物学测量。