Ocean teleconnections between Antarctica and the Equatorial Pacific and Atlantic.

南极洲与赤道太平洋和大西洋之间的海洋遥联。

• 批准号: NE/E005004/1
• 负责人: Neil Wells
• 金额: $ 24.42万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FE005004%2F1
• 关键词: Ocean; teleconnections; between; Antarctica; Equatorial

It is well known that the equatorial ocean-atmosphere system plays a key role in global climate events such as the El Nino-Southern Oscillation (ENSO) phenomenon. There is now compelling evidence that changes in the Antarctic can strongly and quickly affect the equatorial ocean and the ENSO cycle. Observations demonstrate statistically significant correlations (teleconnections) between the Antarctic and the Equator with leads and lags of order months. Model simulations strongly suggest that these teleconnections are a result of propagation of particular types of ocean waves between the Southern Ocean and the Equator. These waves, known as planetary waves, owe their existence to the Earth's rotation. ENSO is of fundamental importance to the social and economic well being of large numbers of people and indirectly to that of Europe. There are therefore huge potential scientific and socioeconomic benefits from increased predictability of ENSO and its impacts such as severe flooding, droughts and disruption of fisheries. However present ENSO prediction systems take no account of Southern Ocean influences. We propose to pool the considerable expertise of the National Oceanography Centre, the Proudman Oceanographic Laboratory and the British Antarctic Survey in order to establish the influence of the Southern Ocean on Equatorial Pacific variability (including ENSO) and to search for observational evidence of ocean planetary wave propagation between the Antarctic and the Equator in response to changes in Antarctic conditions. We will achieve this by using a state-of-the-art numerical ocean model in conjunction with satellite-based observations of sea-ice and sea-surface height and in situ hydrographic data.

众所周知，赤道海洋大气系统在全球气候事件（例如El Nino-Southern振荡（ENSO）现象）中起关键作用。现在有令人信服的证据表明，南极的变化可以强烈并迅速影响赤道海洋和ENSO周期。观察结果表明，南极和赤道之间具有统计学意义的相关性（远程连接），并具有数月的铅和滞后。模型模拟强烈表明，这些遥相关是南大洋与赤道之间特定类型的海浪传播的结果。这些波浪被称为行星波，其存在归功于地球的旋转。 ENSO对于大量人和欧洲的社会和经济福祉至关重要。因此，由于ENSO的可预测性及其影响，例如严重的洪水，干旱和渔业破坏，因此具有巨大的科学和社会经济受益。但是，目前的ENSO预测系统不考虑南大洋的影响。我们建议汇集国家海洋学中心，骄傲的海洋学实验室和英国南极调查的大量专业知识，以建立南方海洋对赤道太平洋可变性（包括ENSO）的影响，并在南极与均等之间寻求海洋行星浪潮传播的观察性证据，以响应南极条件的变化。我们将通过使用最先进的数值海洋模型与基于卫星的海冰和海面高度和原位水文数据结合使用来实现这一目标。

项目成果

Rapid ocean wave teleconnections linking Antarctic salinity anomalies to the equatorial ocean-atmosphere system

将南极盐度异常与赤道海洋大气系统联系起来的快速海浪遥相关

• DOI: 10.1029/2008gl036976
• 发表时间: 2009
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Atkinson C

Combining point correlation maps with self-organising maps to compare observed and simulated atmospheric teleconnection patterns

将点相关图与自组织图相结合，比较观测到的和模拟的大气遥相关模式

• DOI: 10.3402/tellusa.v65i0.20822
• 发表时间: 2013
• 期刊: Dynamic Meteorology and Oceanography
• 作者: Hunt F