Reanalysis of the AMOC

AMOC 的重新分析

• 批准号: NE/M005119/1
• 负责人: Keith Haines
• 金额: $ 51.79万
• 依托单位: University of Reading
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FM005119%2F1
• 关键词: Reanalysis; AMOC

The Atlantic Meridional Overturning Circulation (AMOC for short) transports warm and saline Atlantic surface waters northward to high polar latitudes where it is transformed into colder (and also fresher) water, which sinks and returns southward underneath the warm waters. The Gulf stream is the best known surface current that contributes to carrying the warm surface waters to the north. The strength of this exchange flow has been monitored now for 10 years at Latitude 26N (Florida-Africa). Models suggest that low frequency changes in this AMOC flow may (i) be predictable some years ahead, and (ii) lead to changes in North Atlantic weather and climate some years later due to changing the warm water distribution at the ocean surface. To realise the potential of the AMOC monitoring measurements at 26N these observations need to be successfully "assimilated" into the ocean and climate prediction models being currently used at the Met Office and elsewhere. This project will develop novel methods to introduce the AMOC observational data into the latest ocean and climate model environments, in combination with other complementary datasets that are available, e.g. from ocean profiling floats (ARGO), and from satellites measuring sea surface temperatures and sea level. The experiments will be carried out in close collaboration with scientists from the Met Office and the European Centre for Medium Range Weather Forecasts (ECMWF) in order to allow rapid take up of successful innovations.

大西洋经向翻转环流（简称AMOC）将温暖和含盐的大西洋表面沃茨向北输送到极地高纬度地区，在那里它被转化为更冷（也更新鲜）的水，这些水在温暖的沃茨下面下沉并向南返回。墨西哥湾流是最著名的表面流，有助于将温暖的表面沃茨带到北方。这种交换流的强度在纬度26 N（佛罗里达-非洲）已经监测了10年。模型表明，这种AMOC流的低频变化可能（i）在几年前是可预测的，（ii）由于改变了海洋表面的温水分布，导致几年后北大西洋天气和气候的变化。为了实现26 N的AMOC监测测量的潜力，这些观测需要成功地“同化”到目前在气象局和其他地方使用的海洋和气候预测模型中。该项目将开发新的方法，将AMOC观测数据引入最新的海洋和气候模型环境，并结合其他现有的补充数据集，例如海洋剖面浮标（ARGO）和测量海面温度和海平面的卫星。这些实验将与英国气象局和欧洲中期天气预报中心（ECMWF）的科学家密切合作进行，以便快速采用成功的创新。

项目成果

Ocean Reanalyses: Recent Advances and Unsolved Challenges

• DOI: 10.3389/fmars.2019.00418
• 发表时间: 2019-07
• 期刊: Frontiers in Marine Science
• 影响因子: 3.7
• 作者: A. Storto;A. Álvera-Azcárate;M. Balmaseda;A. Barth;M. Chevallier;F. Counillon;C. Domingues;M. Drévillon;Y. Drillet;G. Forget;G. Garric;K. Haines;F. Hernandez;D. Iovino;L. Jackson;J. Lellouche;S. Masina;M. Mayer;M. Mayer;P. Oke;S. Penny;A. Peterson;Chunxue Yang;H. Zuo

Mechanisms of Atlantic Meridional Overturning Circulation variability simulated by the NEMO model

NEMO模式模拟的大西洋经向翻转环流变率机制

• DOI: 10.5194/os-10-645-2014
• 发表时间: 2014
• 期刊: Ocean Science
• 影响因子: 3.2
• 作者: Stepanov V

The Mean State and Variability of the North Atlantic Circulation: A Perspective From Ocean Reanalyses

• DOI: 10.1029/2019jc015210
• 发表时间: 2019-12-17
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
• 影响因子: 3.6
• 作者: Jackson, L. C.;Dubois, C.;Zuo, H.
• 通讯作者: Zuo, H.

Can the boundary profiles at 26N be used to extract buoyancy-forced AMOC signals?

26N 处的边界剖面能否用于提取浮力驱动的 AMOC 信号？

• DOI: 10.5194/os-2020-8
• 发表时间: 2020
• 作者: Polo I

Variability and Feedbacks in the Atlantic Freshwater Budget of CMIP5 Models With Reference to Atlantic Meridional Overturning Circulation Stability

• DOI: 10.3389/fmars.2022.830821
• 发表时间: 2022-03
• 作者: K. Haines;D. Ferreira;D. Mignac