Arctic Observing Network: Continuing the Beaufort Gyre Observing System in 2018-2021 to Document and Enhance Understanding of Arctic Freshwater Transformations and Fate

北极观测网络：2018-2021年继续波弗特环流观测系统，记录并加深对北极淡水变化和命运的理解

基本信息

批准号：
1719280
负责人：
Andrey Proshutinsky
金额：
$ 157.93万
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：
2017-10-01 至 2020-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1719280&HistoricalAwards=false
关键词：
Arctic Observing Network Continuing Beaufort

项目摘要

The western part of the Arctic Ocean contains a large amount of freshwater (more than 23,000 cubic kilometers which is comparable with the volume of fresh water stored in all the Great Lakes). Our project uses samples from ships and moored instruments to study the mechanisms controlling the amount of freshwater and other ocean properties in the western Arctic Ocean under different climate conditions. Changes in the western Arctic system are driven by changes in the Arctic and global climate systems while at the same time they are strong enough to influence both the weather and climate in the Northern Hemisphere. What we learn on this project will allow us to predict changes in the Arctic Ocean and is important for oil and gas exploration, shipping, navigation, tourism, and military operations.This Arctic Observing Network project will continue for 2018-2019 the Beaufort Gyre Observing System operations begun in 2003 designed to document the unprecedented changes in sea ice and ocean parameters that are presently occurring in the region. We will continue measuring time series of temperature, salinity, currents, geochemical tracers, sea ice draft, and sea level using bottom-anchored moorings and shipboard measurements. Ship-based synoptic sampling covering the Beaufort Gyre will take place during the summer of 2018 in collaboration with scientists from Canada and Japan, with shared logistic expenses, to augment the year-round mooring measurements. Temperature, salinity, oxygen, nutrients, barium, and 18O will continue to be measured at standard locations along sections at 140°W and 150°W longitudes, and ~75°N and ~78°N latitudes using a shipboard CTD/rosette to continue the long-term time series started in 2003. Samples that provide information on longer time-scales, such as CFCs and carbon tetrachloride, alkalinity, total CO2, dissolved inorganic carbon, and tritium/3He, will be collected less frequently. Expendable CTDs that profile to 1100 m depth will be used between CTD/rosette casts to increase spatial resolution of the temperature and salinity fields. The project will be coordinated with other elements of the National Science Foundation?s Arctic Observing Network to enhance effectiveness and interconnections of observational activities, and the field program will continue to accommodate other National Science foundation- funded projects when possible. Data will be available on the project website and at the National Science Foundation's Arctic Data Center.

北极海的西部含有大量淡水（超过23,000立方公里，与所有大湖泊中存储的淡水量相当）。我们的项目使用船只和系泊器械的样品来研究控制西部北极海洋中淡水和其他海洋特性数量在不同气候条件下的机制。西方北极系统的变化是由北极和全球气候系统的变化驱动的，同时它们足够强大，可以影响北半球的天气和气候。我们在该项目上学到的知识将使我们能够预测北极海洋的变化，对于石油和天然气勘探，运输，航行，旅游和军事行动至关重要。该北极观察网络项目将在2018 - 2019年继续进行，Beaufort Gyre观察系统运营始于2003年，该项目始于2003年开始，旨在记录在海上冰和海洋参数中未经预见的情况，该领域曾经发生过这种情况。我们将使用底部锚定的系泊设备和船上的测量值继续测量温度，盐度，电流，地球化学示踪剂，海冰草稿和海平面的时间序列。涵盖Beaufort Gyre的基于船舶的天气抽样将在2018年夏季与加拿大和日本的科学家合作，并以共同的逻辑费用进行增强全年的系泊测量。温度，盐度，氧气，养分，钡和18o将继续在标准位置进行140°W和150°W纵向的沿截面，〜75°N和〜78°N的纬度，使用船舶CTD/Rosette的长期时间序列，以在2003年的长期序列中开始，以便在2003年开始提供信息，以便在2003年开始提供信息。碱度，总二氧化碳，溶解的无机碳和tritium/3he的收集频率较低。 CTD/Rosette铸件之间将使用剖面为1100 m的消耗性CTD，以增加温度和盐度场的空间分辨率。该项目将与国家科学基金会的其他北极观察网络的其他要素进行协调，以提高观察活动的有效性和互连，现场计划将继续在可能的情况下适应其他国家科学基金会基金会的项目。数据将在项目网站和国家科学基金会的北极数据中心上找到。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Inorganic Carbon and p CO 2 Variability During Ice Formation in the Beaufort Gyre of the Canada Basin

加拿大盆地波弗特环流冰形成过程中无机碳和 p CO 2 的变化

DOI：
10.1029/2019jc015109
发表时间：
2019
期刊：
Journal of Geophysical Research: Oceans
影响因子：
0
作者：
DeGrandpre, Michael D.;Lai, Chun‐Ze;Timmermans, Mary‐Louise;Krishfield, Richard A.;Proshutinsky, Andrey;Torres, Daniel
通讯作者：
Torres, Daniel

Variations in Rates of Biological Production in the Beaufort Gyre as the Arctic Changes: Rates From 2011 to 2016

DOI：
10.1029/2018jc014805
发表时间：
2019-06
期刊：
Journal of Geophysical Research: Oceans
影响因子：
0
作者：
Brenda Y. Ji;Z. Sandwith;W. Williams;O. Diaconescu;R. Ji;Yun Li;Emma Van Scoy;M. Yamamoto‐Kawai;S. Zimmermann;R. Stanley
通讯作者：
Brenda Y. Ji;Z. Sandwith;W. Williams;O. Diaconescu;R. Ji;Yun Li;Emma Van Scoy;M. Yamamoto‐Kawai;S. Zimmermann;R. Stanley

Role of Greenland Freshwater Anomaly in the Recent Freshening of the Subpolar North Atlantic