Nansen and Amundsen Basins Observational System (NABOS) 2023 Mooring Design and Cruise Support

南森和阿蒙森盆地观测系统（NABOS）是一个多学科观测项目，包括物理和化学海洋学、大气和冰观测，辅以系泊服务和漂流浮标的部署，以评估海洋在气候变化中的作用。这些观测对北冰洋观测网至关重要。NABOS项目的目标是了解欧亚东部盆地（包括其大陆架）在重新分配北极东部和西部之间的冰和大部分北极河流水方面的作用。对欧亚盆地东部淡水分配的监测使研究人员能够研究不同的大气制度在将淡水分配到盆地的不同部分以及进一步下游到北冰洋中部的过程中所起的作用。目前的项目将支持九个现有系泊的恢复，以及九个新系泊的设计、制造、运输和部署，以支持额外的时间序列观测。伍兹霍尔海洋研究所（WHOI）系泊作业和工程（MOE）小组将提供专业知识和技术服务，以完成南森和阿蒙森盆地观测系统（NABOS）项目使用的9个深水、冰下、地下系泊的设计和制造。这些系泊将在2023年夏末的一次巡航中部署在北冰洋。该合同将有助于在出发港调动9个系泊点到指定船只上。在前往北冰洋东欧亚盆地的巡航中，这些系泊处将用于快速部署。系泊地点提供了东西向的一系列观测，旨在更好地了解淡水在调节横跨和沿着该地区的垂直海洋混合以及从海洋内部向欧亚和马卡罗夫盆地以及北拉普捷夫海和东西伯利亚海海冰地区的热量输送方面的作用。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The Nansen and Amundsen Basins Observational System (NABOS) is a multidisciplinary observational program that includes physical and chemical oceanographic, atmospheric, and ice observations, complemented by servicing of moorings and deployments of drifting buoys to assess the ocean's role in climate change. These observations are critical to the Arctic Ocean observational network. The NABOS project’s goal is to understand the role of the eastern Eurasian Basin, including its shelves, in redistributing ice and the bulk of Arctic riverine waters between the eastern and western Arctic. Monitoring of the partitioning of freshwater in the eastern Eurasian Basin allows researchers to study the role of different atmospheric regimes in distributing freshwater to different parts of the basins and further downstream to the central Arctic Ocean. The current project will support the recovery of nine existing moorings and the design, fabrication, shipping, and deployment of nine new moorings to support an additional period of time-series observations. The Woods Hole Oceanographic Institution’s (WHOI) Mooring Operations and Engineering (MOE) group will provide expertise and technical services to accomplish the design and fabrication of nine (9) deep-water, under-ice, subsurface moorings for use by the Nansen and Amundsen Basins Observation System (NABOS) Project. These moorings will be deployed in the Arctic Ocean during a cruise that will take place in the late summer of 2023. This award will facilitate the mobilization of nine moorings onto the designated vessel at the departure port. The moorings will be available for rapid deployment during a cruise to the Eastern Eurasian Basins of the Arctic Ocean. The mooring locations provide an east-west array of observations designed to better understand the role of fresh waters in regulating vertical ocean mixing across and along this region and the transport of heat from the ocean interior towards areas of sea ice in the Eurasian and Makarov basins and the northern Laptev and East Siberian seas.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.