Collaborative Research: A Winter Expediton to Explore the Biological and Physical Conditions of the Bering, Chukchi and Southern Beaufort Seas

合作研究：探索白令海、楚科奇海和南波弗特海生物和物理条件的冬季探险

• 批准号: 0909368
• 负责人: Carin Ashjian
• 金额: $ 53.37万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0909368&HistoricalAwards=false
• 关键词: Collaborative; Research; Winter; Expediton; Explore

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Funds are provided to collect baseline winter information on the overwintering physical and biological characteristics of three important Arctic Seas: The Bering Sea, the Chukchi Sea, and the Beaufort Sea. Understanding of seasonality, and particularly winter conditions, in the Arctic is severely limited because of difficulties in accessing these regions during winter and because of limitations to sensor technology that can be deployed on overwintering moorings and ice-tethered profilers/buoys. In particular, understanding of the overwintering strategies of one of the dominant copepod genera, Calanus spp., is not well understood but is critical to ecosystem modeling efforts. This lack of knowledge has compromised our ability to model and to predict Arctic ecosystems, knowledge that is critical to our efforts to understand the potential impacts of ongoing climate change.The PIs propose a 6-week cruise to the Bering, Chukchi, and Beaufort Seas, in January-February 2010, during which they will conduct physical (hydrography, circulation), chemical (nutrients), and biological (zooplankton, microzooplankton, chlorophyll) sampling. They will describe the hydrography, circulation and aspects of the planktonic and nutrient environments, identifying the overwintering habitat of Calanus spp., determining the condition and activity of Calanus spp. and euphausiids, describing the interconnectedness between species/populations of Calanus and euphausiids in these regions, identifying the transformations of Pacific Water on the Chukchi Shelf, describing off-shelf flow of Pacific Water into the Artic Ocean and the circulation and hydrography of Barrow Canyon, and quantifying the course- and fine-scale vertical distributions of plankton and particles in relation to the vertical structure of the water column.

该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）资助的。提供资金来收集有关三个重要北极海洋越冬的物理和生物学特征的基线冬季信息：纵火大海，综艺海，丘基奇海和博伊福特海。由于难以在冬季进入这些区域的困难以及可以在越冬的系泊设备和冰上束缚的牧师/浮标上部署的传感器技术，因此对北极地区的季节性，尤其是冬季条件的了解受到严重限制。特别是，对主要的Copepod属之一Calanus spp。的越冬策略的理解不太了解，但对于生态系统建模工作至关重要。 This lack of knowledge has compromised our ability to model and to predict Arctic ecosystems, knowledge that is critical to our efforts to understand the potential impacts of ongoing climate change.The PIs propose a 6-week cruise to the Bering, Chukchi, and Beaufort Seas, in January-February 2010, during which they will conduct physical (hydrography, circulation), chemical (nutrients), and biological (zooplankton, Microzooplankton，叶绿素）采样。他们将描述浮游生物和营养环境的水文，循环和方面，确定了Calanus spp。越冬的栖息地，确定了Calanus spp的状况和活动。 and euphausiids, describing the interconnectedness between species/populations of Calanus and euphausiids in these regions, identifying the transformations of Pacific Water on the Chukchi Shelf, describing off-shelf flow of Pacific Water into the Artic Ocean and the circulation and hydrography of Barrow Canyon, and quantifying the course- and fine-scale vertical distributions of plankton and particles in relation to the vertical structure of水柱。