Collaborative Research: The Distributed Biological Observatory (DBO)-A Change Detection Array in the Pacific Arctic Region

合作研究：分布式生物观测站（DBO）-太平洋北极地区的变化检测阵列

• 批准号: 1702371
• 负责人: Robert Pickart
• 金额: $ 13.96万
• 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: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1702371&HistoricalAwards=false
• 关键词: Collaborative; Research; Distributed; Biological; Observatory

The Arctic is changing. The Distributed Biological Observatory studies these changes in the northern Bering and Chukchi seas. Investigators sample locations that are biologically important in U.S. territorial waters. These locations have been sampled annually since 2010. Other investigators also sample the same locations. As a result, the locations are sampled multiple times a year. Data are collected on environmental conditions including water column and sea floor animals that are food for whales, seals, and birds. Data are shared internationally. The project contributes to the U.S. National Ocean Policy and Interagency Arctic Research Policy Committee 5-year plan. The data will be of value to U.S. and international science and management agencies, private industry, and local communities as they try to understand changes to the environment. The project supports three graduate students.The observational plan includes standard hydrographic and biological measurements along five transect lines located in the northern Bering and Chukchi Seas. These sampling locations are arrayed south-to-north and reflect a gradient of seasonal sea ice change and seawater warming. The investigators chose these 5 regions because they are zones of high biological productivity and biodiversity. Results so far indicate a freshening and warming of Pacific seawater which transits northward over the spring to fall season. These changes have impacted prey for larger marine mammals and seabirds. Satellite observations are also used to evaluate seasonal changes in sea ice concentration, surface seawater temperature, and chlorophyll concentration. The biological measurements focus on lower trophic levels and shipboard surveys of upper trophic level organisms. This research will increase our understanding of the impact of key environmental forcing parameters on biological change in the system. The collection of key prey-predator biological data along with physical and chemical measurements will allow for analyses and ecosystem modeling which will promote better understanding of Arctic environmental changes.

北极正在改变。 分布式生物学天文台研究这些北部白令和楚科奇海中的这些变化。调查人员采样在美国领土上生物学重要的位置。自2010年以来，这些位置每年进行一次采样。其他研究人员还采样了相同的位置。结果，这些位置每年进行多次采样。收集有关环境条件的数据，包括水柱和海底动物，这些动物是鲸鱼，海豹和鸟类的食物。数据是在国际上共享的。该项目有助于美国国家海洋政策和机构间北极研究政策委员会5年计划。 这些数据将对美国和国际科学和管理机构，私营企业和当地社区具有价值，因为它们试图了解环境的变化。该项目支持三名研究生。观察计划包括沿着北部Bering和Chukchi海洋的五个横断面线的标准水文和生物测量。这些抽样位置是从南到北的，反映了季节性海冰变化和海水变暖的梯度。研究人员之所以选择这5个区域，是因为它们是高生物生产力和生物多样性的地区。到目前为止，结果表明，太平洋海水的清新和变暖，在春季到秋季季节向北过渡。这些变化影响了较大的海洋哺乳动物和海鸟的猎物。卫星观察结果还用于评估海冰浓度，表面海水温度和叶绿素浓度的季节性变化。生物学测量集中在较低的营养水平和船上的船上调查上。这项研究将增加我们对关键环境强迫参数对系统生物变化的影响的理解。关键的猎物促进剂生物学数据以及物理化学测量结果的收集将允许分析和生态系统建模，这将促进对北极环境变化的更好理解。

项目成果

Water properties, heat and volume fluxes of Pacific water in Barrow Canyon during summer 2010

• DOI: 10.1016/j.dsr.2015.04.004
• 发表时间: 2015-08-01
• 期刊: DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
• 影响因子: 2.4
• 作者: Itoh, Motoyo;Pickart, Robert S.;Nobre, Carolina
• 通讯作者: Nobre, Carolina

Significant Biologically Mediated CO 2 Uptake in the Pacific Arctic During the Late Open Water Season

• DOI: 10.1029/2018jc014568
• 发表时间: 2019-02
• 期刊: Journal of Geophysical Research: Oceans
• 作者: L. Juranek;Taro Takahashi;J. Mathis;R. Pickart

Pathways, timing, and evolution of Pacific Winter Water through Barrow Canyon

太平洋冬季水流经巴罗峡谷的路径、时间和演变

• DOI: 10.1016/j.dsr2.2018.05.004
• 发表时间: 2019
• 期刊: Deep Sea Research Part II: Topical Studies in Oceanography
• 作者: Shroyer, Emily L.;Pickart, Robert S.
• 通讯作者: Pickart, Robert S.

Formation and transport of corrosive water in the Pacific Arctic region

• DOI: 10.1016/j.dsr2.2018.05.020
• 发表时间: 2018-06-01
• 期刊: DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
• 影响因子: 3
• 作者: Cross, Jessica N.;Mathis, Jeremy T.;Bates, Nicholas R.
• 通讯作者: Bates, Nicholas R.

Ice Nucleating Particles Carried From Below a Phytoplankton Bloom to the Arctic Atmosphere

• DOI: 10.1029/2019gl083039
• 发表时间: 2019-07-28
• 期刊: GEOPHYSICAL RESEARCH LETTERS
• 影响因子: 5.2
• 作者: Creamean, J. M.;Cross, J. N.;DeMott, P. J.
• 通讯作者: DeMott, P. J.