'Next Generation' unstructured mesh ocean global circulation modelling.
“下一代”非结构化网格海洋全球环流建模。
基本信息
- 批准号:NE/C521028/1
- 负责人:
- 金额:$ 49.06万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2006
- 资助国家:英国
- 起止时间:2006 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We will build a next generation ocean global circulation model that is more accurate and has more detailed resolution than existing models. This model will be capable of resolving flows simultaneously on global, basin, regional, and process scales. It will be able to change numerical detail in response to both the structure of the modelled flows and user-defined preferences of regions and structures of specific importance. We shall use the model to carry out ocean research which is not possible with existing models. Despite significant advances over the past decade, numerical ocean global circulation models (OGCMs) are based on essentially the same finite-difference methods employed in the earliest ocean models developed in the 1 960s. Meanwhile, unstructured finite element/volume methods have been deployed to great effect in engineering applications and offer several major advantages for ocean modelling. These include the abilities to: conform accurately to complex basin geometries; focus resolution where it is most needed in response to the evolving flow or regional importance; move the mesh in response to error norms and maintain vertical density structures; incorporate various natural boundary conditions in a straightforward manner; and to make rigorous statements about model errors and numerical convergence. The ability of an unstructured mesh ocean model to change resolution smoothly and dynamically in response to changing ocean dynamics can be viewed as the 'ultimate in grid nesting', but avoiding the various difficulties inherent in matching different dynamical regimes at nest boundaries. Although unstructured mesh modelling has long been a goal of many oceanographers, attempts to apply such methods to model the global circulation have failed due to challenges in treating the Coriolis and buoyancy terms accurately and stably on unstructured meshes. Over the past few years important solutions to this problem have been developed (many by us) and incorporated into the Imperial College Ocean Model (ICOM). This model has the best available parallel mesh adaptivity methods, a suite of options for spatial derivatives (such as high-resolution methods for density/tracer advection), novel and robust treatments of balance, optimised bathymetry and coastline geometries and new large eddy mesh adaptive turbulence models. ICOM will form the foundation of the OGCM built by the proposed consortium. The drivers for it are twofold: (a) a new research tool is a necessity as 'standard' finite-difference codes become harder to tweak to improve their accuracy; and (b) there are significant science problems where the disparity between length scales requires the application of new modelling techniques such as ours (e.g. flow through sills and down slopes, eddies, convection within gyres, etc). These methods have the potential to revolutionise the way in which ocean modelling is done, and thus to secure the long-term future of UK Ocean Modelling at the forefront of the field. The next generation ocean model, with its ability to efficiently resolve a wide range of scales, will have numerous applications to the NERC and wider communities. For ocean modellers, it offers the opportunity to efficiently resolve both basin scale circulation and small-scale processes such as boundary currents, through- and overflows and geostrophic eddies. For Earth system and climate modellers, it offers the opportunity to focus resolution in regions of particular importance, such as boundary currents and overflows, without increasing the computational cost above that of a conventional coarse-resolution model. With a wide range of applications in oceanography, climate change, flood defence, pollution and contaminant dispersal, sustainability of water quality and fisheries, the development of such a model is extremely desirable.
我们将建立下一代海洋全球环流模型,比现有模型更准确,分辨率更详细。该模型将能够同时解决全球,流域,区域和过程尺度上的流量。它将能够根据模拟的流动结构和用户定义的区域偏好以及具有特定重要性的结构来改变数字细节。我们将利用该模型进行海洋研究,这是现有模型无法做到的。尽管在过去的十年中取得了重大进展,数值海洋全球环流模式(OGCM)基本上是基于相同的有限差分方法,在20世纪60年代开发的最早的海洋模式。与此同时,非结构有限元/体积法已部署在工程应用中发挥了巨大的作用,并提供了几个主要的优点,海洋模拟。这些能力包括:准确地符合复杂的盆地几何形状;在响应不断变化的流动或区域重要性时,将分辨率集中在最需要的地方;根据误差规范移动网格并保持垂直密度结构;以简单的方式纳入各种自然边界条件;以及对模型误差和数值收敛进行严格的陈述。一个非结构化的网格海洋模型的能力,以改变分辨率的平滑和动态地响应不断变化的海洋动力学可以被看作是“最终的网格嵌套”,但避免了固有的各种困难,在匹配不同的动力学制度在巢边界。尽管非结构化网格建模一直是许多海洋学家的目标,但由于在非结构化网格上准确和稳定地处理科里奥利和浮力项的挑战,应用这种方法来模拟全球环流的尝试失败了。在过去的几年里,这个问题的重要解决方案已经开发出来(许多是由我们开发的),并被纳入帝国理工学院海洋模型(Imperial College Ocean Model)。该模型具有最好的并行网格自适应方法,一套空间导数选项(如密度/示踪剂平流的高分辨率方法),新的和强大的平衡处理,优化的测深和海岸线几何形状和新的大涡网格自适应湍流模型。该项目将构成由拟议财团建造的OGCM的基础。其驱动因素有两个:(a)新的研究工具是必要的,因为“标准”有限差分代码变得更难调整以提高其准确性;(B)存在重大的科学问题,其中长度尺度之间的差异需要应用新的建模技术,如我们的技术(例如,流过窗台和下坡、漩涡、环流内的对流等)。这些方法有可能彻底改变海洋建模的方式,从而确保英国海洋建模的长期未来处于该领域的最前沿。下一代海洋模式,其有效地解决了广泛的规模的能力,将有许多应用到NERC和更广泛的社区。对于海洋建模者来说,它提供了有效解决流域尺度环流和小尺度过程的机会,如边界流,通过和溢出以及地转涡旋。对于地球系统和气候建模者来说,它提供了一个机会,可以将分辨率集中在特别重要的区域,如边界流和溢流,而不会增加传统粗分辨率模型的计算成本。由于在海洋学、气候变化、防洪、污染和污染物扩散、水质的可持续性和渔业等方面有着广泛的应用,开发这样一个模型是极其必要的。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Numerical Modeling of Tides in the Late Pennsylvanian Midcontinent Seaway of North America with Implications for Hydrography and Sedimentation
北美宾夕法尼亚晚期中部大陆海道潮汐数值模拟及其对水文学和沉积作用的影响
- DOI:10.2110/jsr.2007.075
- 发表时间:2007
- 期刊:
- 影响因子:2
- 作者:Wells M
- 通讯作者:Wells M
A new computational framework for multi-scale ocean modelling based on adapting unstructured meshes
- DOI:10.1002/fld.1663
- 发表时间:2008-03-20
- 期刊:
- 影响因子:1.8
- 作者:Piggott, M. D.;Gorman, G. J.;Wells, M. R.
- 通讯作者:Wells, M. R.
{{
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 }}
Christopher Pain其他文献
Comprehensive evaluation of natural ventilation potential of buildings in urban areas under the influence of multiple environment-related factors
多重环境因素影响下城市建筑自然通风潜力综合评价
- DOI:
10.1016/j.jobe.2024.109218 - 发表时间:
2024 - 期刊:
- 影响因子:6.4
- 作者:
Jie Xiong;Baizhan Li;C. A. Short;Prashant Kumar;Christopher Pain - 通讯作者:
Christopher Pain
A comprehensive review of thermal comfort evaluation methods and influencing factors for urban parks
- DOI:
10.1016/j.buildenv.2024.112159 - 发表时间:
2025-01-01 - 期刊:
- 影响因子:
- 作者:
Peiping Zheng;Runming Yao;James O'Donnell;Eugene Mohareb;Prashant Kumar;Christopher Pain;Xizhen Huang;Baizhan Li - 通讯作者:
Baizhan Li
Assessing uncertainty and heterogeneity in machine learning-based spatiotemporal ozone prediction in Beijing-Tianjin- Hebei region in China
评估中国京津冀地区基于机器学习的时空臭氧预测中的不确定性和异质性
- DOI:
10.1016/j.scitotenv.2023.163146 - 发表时间:
2023-07-10 - 期刊:
- 影响因子:8.000
- 作者:
Meiling Cheng;Fangxin Fang;Ionel Michael Navon;Jie Zheng;Jiang Zhu;Christopher Pain - 通讯作者:
Christopher Pain
Recognition of children’s movement patterns during recess for characterizing particle exposure doses
- DOI:
10.1007/s12273-025-1295-x - 发表时间:
2025-06-26 - 期刊:
- 影响因子:5.900
- 作者:
Feng Yuan;Runming Yao;Prashant Kumar;Christopher Pain;Ziyu Shu;Baizhan Li - 通讯作者:
Baizhan Li
Christopher Pain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('Christopher Pain', 18)}}的其他基金
Health assessment across biological length scales for personal pollution exposure and its mitigation (INHALE)
针对个人污染暴露及其缓解的跨生物长度尺度的健康评估(吸入)
- 批准号:
EP/T003189/1 - 财政年份:2019
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Smart-GeoWells: Smart technologies for optimal design, drilling, completion and management of geothermal wells
智能地热井:用于地热井优化设计、钻探、完井和管理的智能技术
- 批准号:
EP/R005761/1 - 财政年份:2017
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Investigation of the safe removal of fuel debris: multi-physics simulation
燃料碎片安全清除的研究:多物理场模拟
- 批准号:
EP/P013198/1 - 财政年份:2016
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Reactor core-structure re-location modelling for severe nuclear accidents
严重核事故的反应堆堆芯结构重新定位模型
- 批准号:
EP/M012794/1 - 财政年份:2014
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
MBase: The Molecular Basis of Advanced Nuclear Fuel Separations
MBase:先进核燃料分离的分子基础
- 批准号:
EP/I003002/1 - 财政年份:2010
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Advanced new methods for multi-scale free surface regional ocean modelling with adjoint data assimilation
伴随数据同化的多尺度自由表面区域海洋建模的先进新方法
- 批准号:
EP/I00405X/1 - 财政年份:2010
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Realising the Commercial Potential of the Multi-Physics and Multi-Scale FETCH Technology for Nuclear Safety Applications
实现核安全应用多物理场和多尺度 FETCH 技术的商业潜力
- 批准号:
EP/I006265/1 - 财政年份:2010
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
Global Ocean Modelling with Adaptive Unstructured Grid Methods
使用自适应非结构化网格方法进行全球海洋建模
- 批准号:
NE/F012594/1 - 财政年份:2009
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
'Next Generation' unstructured mesh ocean global circulation modelling.
“下一代”非结构化网格海洋全球环流建模。
- 批准号:
NE/C521028/2 - 财政年份:2007
- 资助金额:
$ 49.06万 - 项目类别:
Research Grant
相似国自然基金
Next Generation Majorana Nanowire Hybrids
- 批准号:
- 批准年份:2020
- 资助金额:20 万元
- 项目类别:
相似海外基金
CAREER: Real-Time First-Principles Approach to Understanding Many-Body Effects on High Harmonic Generation in Solids
职业:实时第一性原理方法来理解固体高次谐波产生的多体效应
- 批准号:
2337987 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Continuing Grant
Collaborative Research: Constraining next generation Cascadia earthquake and tsunami hazard scenarios through integration of high-resolution field data and geophysical models
合作研究:通过集成高分辨率现场数据和地球物理模型来限制下一代卡斯卡迪亚地震和海啸灾害情景
- 批准号:
2325311 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
RII Track-4:NSF: In-Situ/Operando Characterizations of Single Atom Catalysts for Clean Fuel Generation
RII Track-4:NSF:用于清洁燃料生成的单原子催化剂的原位/操作表征
- 批准号:
2327349 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
ERI: Non-Contact Ultrasound Generation and Detection for Tissue Functional Imaging and Biomechanical Characterization
ERI:用于组织功能成像和生物力学表征的非接触式超声波生成和检测
- 批准号:
2347575 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
SBIR Phase II: Thermally-optimized power amplifiers for next-generation telecommunication and radar
SBIR 第二阶段:用于下一代电信和雷达的热优化功率放大器
- 批准号:
2335504 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Cooperative Agreement
CAREER: Next-generation Logic, Memory, and Agile Microwave Devices Enabled by Spin Phenomena in Emergent Quantum Materials
职业:由新兴量子材料中的自旋现象实现的下一代逻辑、存储器和敏捷微波器件
- 批准号:
2339723 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Continuing Grant
CAREER: Securing Next-Generation Transportation Infrastructure: A Traffic Engineering Perspective
职业:保护下一代交通基础设施:交通工程视角
- 批准号:
2339753 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
CAREER: Ultralow phase noise signal generation using Kerr-microresonator optical frequency combs
职业:使用克尔微谐振器光学频率梳生成超低相位噪声信号
- 批准号:
2340973 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Continuing Grant
Next-Generation Distributed Graph Engine for Big Graphs
适用于大图的下一代分布式图引擎
- 批准号:
DP240101322 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Discovery Projects
Next Generation Fluorescent Tools for Measuring Autophagy Dynamics in Cells
用于测量细胞自噬动态的下一代荧光工具
- 批准号:
DP240100465 - 财政年份:2024
- 资助金额:
$ 49.06万 - 项目类别:
Discovery Projects