Analysis of Coupling between Oceanic Kelvin Waves and Atmospheric Convection, and Its Impacts on Weather over the Tropical Pacific
海洋开尔文波与大气对流耦合及其对热带太平洋天气的影响分析
基本信息
- 批准号:0850642
- 负责人:
- 金额:$ 35.36万
- 依托单位:
- 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:2009-06-15 至 2013-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The westerly wind phase of the Madden-Julian Oscillation (MJO) often triggers oceanic Kelvin waves in the equatorial West Pacific Ocean. Occasionally these waves are associated with eastward moving warm sea surface temperature (SST) anomalies. The anomalously warm ocean destabilizes the atmosphere to convectively coupled waves, and the associated enhanced deep convection accelerates westerly winds to the west of the Kelvin wave crests; this, in turn, amplifies the Kelvin waves. This pattern suggests that oceanic Kelvin waves and atmospheric convection are coupled. Preliminary results indicate that this coupling organizes high impact weather events across the tropical Pacific, including westerly wind bursts and tropical cyclones. While such weather events can occur within the MJO prior to the development of oceanic Kelvin waves, the waves influence the further development of weather. Such coupling to the ocean is not included in traditional views of the MJO. In this project the evolutions of atmospheric structures associated with these convectively coupled oceanic waves will be investigated, as well as their associations with high-impact weather.Observations of such coupled events will be analyzed to diagnose the details of their three dimensional spatial structures in the atmosphere and their evolution over time. Particular attention will be paid to the evolution of weather events in the vicinity of the Kelvin waves, in order to determine how these events participate in the coupling process. The approach is to prepare and analyze composites of many events, to analyze individual cases, and to make a census of the population of all events. Results will contribute to a synoptic-dynamic model for the coupled events and their links with the associated weather.This study will enhance our understanding of the interactions of oceanic Kelvin waves with the MJO, some westerly wind bursts, and tropical cyclones. Broader impacts of this project include the potential to predict the development of coupled events along with their associated extreme weather. This work should lead to further analyses of the potential connections between the intraseasonal coupling and the evolution of El Nino. The project will support the work of a beginning investigator and the training of a graduate student.
该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。马登-朱利安振荡(MJO)的西风相位经常在赤道西太平洋引发海洋开尔文波。有时这些波与向东移动的暖海表面温度(SST)异常有关。异常温暖的海洋使大气不稳定,对流耦合波,相关的增强的深对流加速了开尔文波峰以西的西风;这反过来又放大了开尔文波。这种模式表明海洋开尔文波和大气对流是耦合的。初步结果表明,这种耦合组织了热带太平洋的高影响天气事件,包括西风爆发和热带气旋。虽然这种天气事件可能在海洋开尔文波发展之前发生在MJO内,但这些波会影响天气的进一步发展。这种与海洋的耦合不包括在MJO的传统观点中。本计划将研究与这些对流耦合的海洋波相关的大气结构的演变,以及它们与高影响天气的关系,并分析这些耦合事件的观测结果,以诊断它们在大气中的三维空间结构的细节及其随时间的演变。特别注意将支付给附近的开尔文波的天气事件的演变,以确定这些事件如何参与耦合过程。方法是准备和分析许多事件的合成,分析个别案例,并对所有事件的总体进行普查。结果将有助于一个天气动力学模式的耦合事件及其与相关的天气。这项研究将提高我们的理解海洋开尔文波与MJO,一些西风爆发,和热带气旋的相互作用。这一项目的更广泛影响包括有可能预测耦合事件的发展及其相关的极端天气沿着。这项工作应该有助于进一步分析季节内耦合与厄尔尼诺现象演变之间的潜在联系。该项目将支持一名初级调查员的工作和一名研究生的培训。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Paul Roundy其他文献
Paul Roundy的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Paul Roundy', 18)}}的其他基金
How Atmospheric Synoptic Kelvin Waves Influenced the Propagation of the Madden-Julian Oscillation (MJO)
大气天气开尔文波如何影响马登-朱利安振荡 (MJO) 的传播
- 批准号:
2103624 - 财政年份:2021
- 资助金额:
$ 35.36万 - 项目类别:
Standard Grant
Effects of Background Wind on the Eastward Propagation of Madden Julian Oscillation (MJO)
背景风对马登朱利安振荡(MJO)东向传播的影响
- 批准号:
1757342 - 财政年份:2018
- 资助金额:
$ 35.36万 - 项目类别:
Standard Grant
Intraseasonal Extratropical Precursors to the Indian Ocean Madden-Julian Oscillation (MJO) Proximate to Africa
靠近非洲的印度洋马登-朱利安涛动 (MJO) 的季节内温带前兆
- 批准号:
1560627 - 财政年份:2016
- 资助金额:
$ 35.36万 - 项目类别:
Standard Grant
The Madden Julian Oscillation, Tropical Cyclones, and Extratropical Circulation Responses
马登朱利安涛动、热带气旋和温带环流响应
- 批准号:
1358214 - 财政年份:2014
- 资助金额:
$ 35.36万 - 项目类别:
Standard Grant
Analysis of the Influence of Convectively Coupled Atmospheric Waves and Extratropical Rossby Waves on the Structure and Evolution of the Observed Madden Julian Oscillation (MJO)
对流耦合大气波和温带罗斯贝波对观测到的马登朱利安振荡(MJO)结构和演化的影响分析
- 批准号:
1128779 - 财政年份:2011
- 资助金额:
$ 35.36万 - 项目类别:
Continuing Grant
相似国自然基金
基于外泌体TRPV4-Nox4 coupling途径探讨缺氧微环境调控鼻咽癌转移侵袭和血管新生的机制研究
- 批准号:
- 批准年份:2021
- 资助金额:10.0 万元
- 项目类别:省市级项目
相似海外基金
Unravelling coupling between multiscale tissue mechanics and heart valve calcification
揭示多尺度组织力学与心脏瓣膜钙化之间的耦合
- 批准号:
EP/X027163/2 - 财政年份:2024
- 资助金额:
$ 35.36万 - 项目类别:
Fellowship
Methylation of mRNA as a coupling mechanism between diet, metabolism and the circadian clock.
mRNA 甲基化作为饮食、新陈代谢和生物钟之间的耦合机制。
- 批准号:
MR/Y003896/1 - 财政年份:2024
- 资助金额:
$ 35.36万 - 项目类别:
Fellowship
Collaborative Research: Analysis and Control in Multi-Scale Interface Coupling between Deformable Porous Media and Lumped Hydraulic Circuits
合作研究:可变形多孔介质与集总液压回路多尺度界面耦合分析与控制
- 批准号:
2327640 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Standard Grant
Sexual dimorphism and menopause in the interaction between immune cells and neurovascular coupling
免疫细胞与神经血管耦合相互作用中的性别二态性和更年期
- 批准号:
479498 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Operating Grants
Unravelling coupling between multiscale tissue mechanics and heart valve calcification
揭示多尺度组织力学与心脏瓣膜钙化之间的耦合
- 批准号:
EP/X027163/1 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Fellowship
Sexual dimorphism and menopause in the interaction between immune cells and neurovascular coupling
免疫细胞与神经血管耦合相互作用中的性别二态性和更年期
- 批准号:
487239 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Operating Grants
Exploration of the strong coupling regime between the 3D cavity and super conducting quantum bits for low-mass wave-like dark matter searches
探索 3D 腔和超导量子比特之间的强耦合机制,用于低质量波状暗物质搜索
- 批准号:
23K13093 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Structural Analysis of a Metabolic Enzyme Complex: Insights into Coupling between Glycolysis and Fermentation
代谢酶复合物的结构分析:深入了解糖酵解与发酵之间的耦合
- 批准号:
23K05667 - 财政年份:2023
- 资助金额:
$ 35.36万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Ceilometer and Lidar Measurements of Atmospheric Trends, Coupling Between Atmospheric Layers, and Atmospheric Particulates
大气趋势、大气层之间的耦合和大气颗粒物的云高仪和激光雷达测量
- 批准号:
RGPIN-2018-04999 - 财政年份:2022
- 资助金额:
$ 35.36万 - 项目类别:
Discovery Grants Program - Individual
MPS-Ascend: Nickel/Photoredox-Catalyzed C(sp3)–C(sp3) Cross-Coupling Between Alkyl Halides and Activated Alcohols
MPS-Ascend:镍/光氧化还原催化的 C(sp3)→C(sp3) 烷基卤化物和活化醇之间的交叉偶联
- 批准号:
2213210 - 财政年份:2022
- 资助金额:
$ 35.36万 - 项目类别:
Fellowship Award