UpTempO: Measuring the Upper Layer Temperature of the Arctic Ocean

UpTempO：测量北冰洋上层温度

• 批准号: 1203506
• 负责人: Michael Steele
• 金额: $ 105.84万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-10-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1203506&HistoricalAwards=false
• 关键词: UpTempO; Measuring; Upper; Layer; Temperature

This project will continue the development and deployment of UpTempO buoys in the Arctic Ocean. UpTempO buoys float at the ocean surface, equipped with (i) a sea level pressure sensor, (ii) a 60 m long string of 12 thermistors, and (iii) two ocean pressure sensors at 20 m and 60 m depth. In this next phase of the project, the research team will improve the buoy by adding a high precision conductivity/temperature pair near the surface on some buoys, which will provide calibration data as well as the first-ever Lagrangian near-surface salinity data in the rapidly freshening Arctic Ocean. They will also make several technical improvements, including the use of inductive modem technology which provides for a more flexible architecture. Two ?short? buoys will be built per year, for deployment in the Chukchi Sea. Data are recorded hourly, uploaded in near real time to the Iridium satellite communications network and then downloaded to the Global Telecommunications System (GTS) and to the investigators' local web site which is linked to national data centers. Buoy deployment uses existing assets such ship cruises planned as part of other projects. This project addresses several major targeted questions such as, ?What is the impact of warming and reduced sea ice cover on the physical marine system?? And ?Is the sea ice/ocean system undergoing an ?unprecedented transition into a different regime??, observing priorities such as to ?observe the energy balance of the atmospheric and oceanic boundary layers?, and high-priority regions (e.g, the Beaufort and Chukchi Seas) identified in the ?Observing Ocean and Sea Ice? 2005 SEARCH Implementation Workshop. The team will plan a major new exhibit about polar buoys to be shown at (i) the annual Polar Science Weekend at Seattle?s Pacific Science Center and (ii) a new Portal to Current Research season-long exhibit to be developed as part of this project, in collaboration with the PacSciCenter.

该项目将继续在北冰洋开发和部署Up Tempo浮标。Uptempo浮标漂浮在海洋表面，配备有(1)一个海平面压力传感器，(2)一个60米长的12个热敏电阻串，(3)20米和60米深的两个海洋压力传感器。在该项目的下一阶段，研究小组将改进浮标，在一些浮标上增加一个靠近海面的高精度电导率/温度对，这将提供校准数据以及北冰洋快速变淡的首次拉格朗日近地表盐度数据。他们还将进行几项技术改进，包括使用感应调制解调器技术，以提供更灵活的架构。两个？短？浮标将每年建造一次，部署在楚科奇海。数据每小时记录一次，近乎实时地上传到Iridium卫星通信网络，然后下载到全球电信系统(GTS)和与国家数据中心相连的调查员当地网站。浮标部署使用现有资产，如计划作为其他项目一部分的船只巡航。这个项目解决了几个主要的有针对性的问题，例如，变暖和海冰覆盖减少对海洋物理系统的影响是什么？以及？海冰/海洋系统是否正在经历一场“前所未有的向不同体制的转变？”，观察到“观测大气和海洋边界层的能量平衡”等优先事项，以及2005年“观测海洋和海冰”执行讲习班所确定的高度优先区域(如波弗特海和楚科奇海)。该团队将计划在(I)在西雅图-S太平洋科学中心举行的一年一度的极地科学周末上展出一个关于极地浮标的大型新展览，以及(Ii)作为该项目的一部分，与太平洋科学中心合作开发一个新的门户网站，作为该项目的一部分。