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”问题，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，题为“用于北冰洋持续观测的冰绳仪器”。这一新的仪器概念是在国家科学基金会的支持下，在伍兹霍尔海洋研究所(WHOI)开发的现已投入使用的系泊剖面仪(MP)的消耗型、冰栓型变种。设想了一组松散的冰绳剖面仪(ITP)，重复采样常年冰盖下的上层海洋，并将数据实时遥测回岸上的用户。较长的寿命和适中的成本将允许通过定期播种替代系统来维持盆地规模的粗略覆盖范围，类似于国际北极浮标计划(IABP)的地面浮标。在业务上，ITP阵列将作为目前在低纬海洋启动的Argo浮标计划的北极类比。理想情况下，一系列这样的冰系留平台可以作为极地表面大气和海冰状况以及北冰洋上层的有效观测系统。此外，除了通过地面冰包的电信连接的冰平台外，该阵列还将成为双向传输到北冰洋浮标、AUV和地下系泊设备以及声波断层成像接收器的骨干。为了优化未来北极观测系统的能力并协调北极观测方面的国际努力，该小组将于2004年6月23日至25日在世界卫生组织举办题为“基于冰系留平台的北极观测”的讲习班。这次研讨会将是早先的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、俄罗斯以及可能还有其他国家的约40名主要专家以及对此感兴趣的科学家和学生参加集思广益，讨论冰系观测系统的想法。支持费用包括与会者的旅费和住宿费、会议后勤费用以及报告的编写和分发费用。学术价值：拟议的研讨会将对设计和实施完整的北极大气、海冰和海洋观测系统做出重大贡献。预计该讲习班将推动环境测量和遥测能力以及观测数据的收集、获取、整合、分析、综合、获取和长期保存方面的突破。更广泛的影响：这次研讨会将汇集来自不同国家的专家，协调各国在北极研究方面的努力。讲习班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.