Collaborative Research: Development of an Ice-Tethered Winch for the Seasonal Ice Zone

冰系绞车（ITW）将结合两种现有技术，冰系剖面仪和北极绞车的设计。将这些技术结合起来，可以创造出一种新的仪器，既可以遥测冰下的地下数据，又可以在不同深度上绘制水柱的剖面，从而扩大它们各自的能力。ITW将通过提供相对高分辨率（每天四个剖面，垂直分辨率小于10厘米）的全年近地表物理和生物特性时间序列，包括温度、盐度、压力、浊度和叶绿素，来补充其他现有的北极观测工作（例如，破冰船调查、滑翔机和系泊）。当固定在陆地冰面上时，ITW将在欧拉平台和半拉格朗日漂流体之间转换。ITW全年数据将根据北极观测网提供的指南，通过新建立的ITW网站和北极合作数据信息服务免费实时提供。ITW网站不仅将提供一个数据门户，而且还将包括针对公众的项目和区域概述。部署前将在阿拉斯加州巴罗市举行公开演讲。ITW数据将被纳入设在百慕大海洋科学研究所的日本基金- pogo观测海洋学卓越中心的物理海洋学课程。对ITW数据的分析将用于CofE期间的学生研究项目。

The ice-tethered winch (ITW) will combine the design of two established technologies, the Ice-Tethered Profiler and Arctic Winch. Merging these technologies will expand upon their individual capabilities by creating a new instrument that can both telemeter subsurface data from beneath the ice and profile the water column over variable depths. The ITW will complement other existing Arctic observational efforts (e.g., icebreaker surveys, gliders, and moorings) by providing relatively high resolution (four profiles daily with less than 10 cm vertical resolution) time series of year-round, near-surface physical and biological properties, including temperature, salinity, pressure, turbidity, and chlorophyll. The ITW will transition between a Eulerian platform when tethered to landfast ice and a semi-Lagrangian drifter when in open water. Year-round data from the ITW will be freely provided in realtime via a newly created ITW website and the Cooperative Arctic Data and Information Service in accordance with the guidelines provided by the Arctic Observing Network. The ITW website will not only provide a portal for data, but will also include an overview of the project and region targeted to the general public. A public talk will be given in Barrow, Alaska prior to deployment. ITW data will be integrated into the Physical Oceanography curriculum of the Nippon Foundation-POGO Centre of Excellence in Observational Oceanography (CofE) hosted at the Bermuda Institute of Ocean Sciences. Analysis of ITW data will be used in a student research project during CofE.