International Workshop: Arctic Observations Based on Ice-Tethered Platforms

为了解决海洋观测系统中的“北极缺口”，美国国家科学基金会于2003年7月资助了一项仪器开发项目，名为“用于北冰洋持续观测的冰系仪器”。这种新仪器概念是伍兹霍尔海洋研究所（WHOI）在美国国家科学基金会（NSF）的支持下开发的泊系剖面仪（MP）的消耗性冰系变型。这些冰系剖面仪（ITP）被设想为一个松散的阵列，反复采样常年浮冰下的上层海洋，并将数据实时遥测回岸上的用户。较长的使用寿命和较低的成本将允许通过在必要时定期播种替换系统来维持粗略的盆地尺度覆盖，类似于国际北极浮标计划（IABP）的表面冰浮标。在操作上，ITP阵列将作为ARGO漂浮计划的北极模拟物，目前正在低纬度海洋启动。理想情况下，这样的冰系平台阵列可以作为极地表面大气和海冰状况以及上北冰洋的有效观测系统。此外，除了冰面平台上的通信链路外，该阵列还可以作为向浮标、水下航行器、北冰洋水下系泊系统以及声波层析成像接收器进行双向传输的主干。为了优化未来北极观测系统的能力并协调北极观测的国际努力，该小组将于2004年6月23日至25日在WHOI举行题为“基于冰系平台的北极观测”的研讨会。本次研讨会将是早期北极仪器研讨会的合理延续。预计将有来自美国、加拿大、德国、英国、挪威、俄罗斯和其他国家的大约40名关键专家和感兴趣的科学家和学生参加会议，集思广益，讨论冰系观测系统的想法。此支持包括与会者的差旅费和住宿费、会议后勤、报告准备和分发。知识价值：提议的研讨会将对设计和实施一个完整的北极大气、海冰和海洋观测系统作出重大贡献。预计本次研讨会将推动环境测量和遥测能力的发展，以及观测数据的收集、获取、整合、分析、综合、获取和长期保存。更广泛的影响：本次研讨会将汇集来自不同国家的专家，以协调各国在北极研究方面的努力。研讨会的成果将通过互联网和科学出版物广泛传播。此外，研讨会将通过研究生的参与产生教育影响。

To address the "Arctic gap" in the ocean observing system, the National Science Foundation funded an instrument-development project in July 2003 entitled: "An Ice-tethered Instrument for Sustained Observation of the Arctic Ocean." This new instrument concept is for an expendable, ice-tethered variation of the now-operational Moored Profiler (MP) instrument developed at the Woods Hole Oceanographic Institution (WHOI) with NSF support. A loose array of these Ice-Tethered Profilers (ITP's) is envisioned, repeatedly sampling the upper ocean below the perennial ice pack and telemetering the data back in real time to the users ashore. Long lifetime and modest cost will permit coarse, basin-scale coverage to be maintained through regular seeding of replacement systems as necessary, similar to the surface ice buoys of the International Arctic Buoy Program (IABP). Operationally, the ITP array will serve as the Arctic analogue of the ARGO float program now being initiated in the lower-latitude oceans. Ideally, an array of such ice-tethered platforms can serve as an effective observing system of the polar surface atmosphere and sea ice conditions as well as the upper-Arctic Ocean. Moreover, addition to the ice platforms of a telecommunications link through the surface ice pack would allow the array to serve as the backbone for two-way transmissions to buoys, AUVs, and subsurface moorings in the Arctic Ocean as well as acoustic tomographic receivers. In order to optimize the capabilities of future Arctic observing systems and to coordinate international efforts in Arctic observing, this group will hold a workshop entitled "Arctic Observing Based on Ice- Tethered Platforms" at WHOI, June 23-25, 2004. This workshop will be a logical continuation of an earlier Arctic Instrumentation Workshop. It is expected that approximately 40 key experts plus interested scientists and students from the USA, Canada, Germany, Great Britain, Norway, Russia, and possibly other countries will attend to brainstorm ideas of ice-tethered observing systems. Support is included here to cover the travel and lodging expenses of meeting participants, the meeting logistics, and report preparation and dissemination. Intellectual Merits: The proposed workshop will contribute significantly to the design and implementation of a full Arctic atmosphere, sea ice, and ocean observing system. It is expected that this workshop will push the boundaries in environmental measurements and telemetry capabilities, as well as the collection, acquisition, integration, analysis, synthesis, access, and long-term preservation of the observations. Broader Impacts: This workshop will bring together experts from different countries to coordinate the efforts of various countries in Arctic studies. Results of the workshop will be widely distributed through the internet and scientific publications. Additionally, the workshop will have educational impact through the involvement of graduate students.