Collaborative Research: Frameworks: Community-Based Weather and Climate Simulation With a Global Storm-Resolving Model
合作研究:框架:基于社区的天气和气候模拟以及全球风暴解决模型
基本信息
- 批准号:2005137
- 负责人:
- 金额:$ 278.92万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-08-01 至 2025-07-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Global Earth System Models (ESMs) use mathematical equations to simulate both weather and climate. ESMs include the dynamics of the atmosphere, oceans, land surface, ice, and vegetation. They can be used to make predictions of use to the public and policymakers. Today’s ESMs use coarse grids with cells about 100 km wide. Important weather systems like thunderstorms are too small to be simulated with such grids. One way to improve ESMs is to use finer grids that can directly simulate thunderstorms, but such models can only be run on very powerful computers. This project, called EarthWorks, will create an ESM capable of resolving storms by taking advantage of recent developments in high performance computing. EarthWorks will also use artificial intelligence to improve and speed up the model, and state-of-the-art methods to limit the amount of data produced as the model runs. The EarthWorks ESM will be built by spinning off and modifying a copy of the most recent version of the widely used Community Earth System Model. The modified model will represent the atmosphere, the oceans, and the land surface on a single very high-resolution grid, with grid cells about 4 km wide. It will have improved forecast skill, and produce more realistic simulations of past, present, and future climates. The project will make the model and its output openly available for use by all scientists.The open-source Community Earth System Model (CESM) is both developed and applied to scientific problems by a large community of researchers. It is critical infrastructure for the U.S. climate research community. In the atmosphere and ocean components of the CESM, the adiabatic terms of the partial differential equations that express conservation of mass, momentum, and thermodynamic energy are solved numerically using what is called a dynamical core. Atmosphere and ocean models also include parametric representations, called parameterizations, that are designed to include the effects of storm and cloud processes that occur on scales too small to be represented on the model's grid. Despite decades of work by many scientists, today's parameterizations are still problematic and limit the utility of ESMs for many applications of societal relevance. Fortunately, recent advances in computer power have made it possible to parameterize less, by using grid spacings on the order of a few kilometers over the entire globe. These "global storm-resolving models" (GSRMs) can only be run on today's fastest computers. GSRMs are under very active development at a dozen or so modeling centers around the world. Unfortunately, however, the current formulation of the CESM prevents it from being run as a GSRM. This project, called EarthWorks, will create a new, openly available GSRM by spinning off and intensively modifying a copy of the CESM. To accomplish this goal, the researchers will use recently developed and closely related dynamical cores for the atmosphere and ocean. All components of the model will use the same very high-resolution grid. This high resolution will make it possible to eliminate the particularly troublesome parameterization of deep cumulus convection (i.e., thunderstorms), and thereby reduce systematic biases that plague current ESMs. Earthworks will exploit the pre-exascale and exascale technologies now being brought to market by high performance computing vendors. The new exascale ESM will run the most computationally intensive components on powerful graphics processor units (GPUs), and exploit node-level task parallelism to execute the rest of the model asynchronously. The component model codes are close to completion and are currently being tested on GPUs. EarthWorks will use a simplified component-coupling approach, incorporate machine learning where feasible, and leverage lossy compression techniques and parallel I/O tools to deal with the enormous data volumes that will be generated as the model runs. The completed model will be simple, powerful, and well documented. The project will apply it to pressing scientific problems in both numerical weather prediction and climate simulation. The model and its input datasets will be made openly available to the broad research community, via GitHub.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
全球地球系统模型(ESM)使用数学方程来模拟天气和气候。ESM包括大气、海洋、陆地表面、冰和植被的动态。它们可以用来预测公众和政策制定者的使用情况。今天的ESM使用粗网格,网格宽约100公里。雷暴等重要天气系统太小,无法用此类网格模拟。改进ESM的一种方法是使用可以直接模拟雷暴的更精细的网格,但这种模型只能在非常强大的计算机上运行。该项目名为EarthWorks,将利用高性能计算的最新发展,创建一个能够解决风暴的ESM。EarthWorks还将使用人工智能来改进和加速模型,并使用最先进的方法来限制模型运行时产生的数据量。EarthWorks ESM将通过剥离和修改广泛使用的社区地球系统模型的最新版本来构建。修改后的模型将在一个非常高分辨率的网格上代表大气、海洋和陆地表面,网格单元宽约4公里。它将提高预报技能,并对过去、现在和未来的气候进行更逼真的模拟。该项目将使该模型及其输出公开提供给所有科学家使用,开放源代码社区地球系统模型(CESM)是由一个庞大的研究社区开发和应用于科学问题。它是美国气候研究界的关键基础设施。在CESM的大气和海洋组成部分中,表示质量守恒、动量守恒和热力学能量守恒的偏微分方程的绝热项使用所谓的动力学核心进行数值求解。大气和海洋模式还包括参数化表示,称为参数化,旨在包括风暴和云过程的影响,这些影响发生在尺度太小而无法在模型的网格上表示。尽管许多科学家进行了数十年的工作,但今天的参数化仍然存在问题,并限制了ESM在许多社会相关应用中的效用。幸运的是,计算机能力的最新进展使得无参数化成为可能,因为在整个地球仪上使用了几公里数量级的网格间距。这些“全球风暴解析模型”(GSRM)只能在当今最快的计算机上运行。GSRM在世界各地的十几个建模中心正在积极开发中。然而,不幸的是,CESM目前的制定方式使其无法作为GSRM运行。这个项目称为EarthWorks,将通过剥离和密集修改CESM的副本来创建一个新的、公开可用的GSRM。为了实现这一目标,研究人员将使用最近开发的与大气和海洋密切相关的动力核心。模型的所有组件都将使用相同的高分辨率网格。这种高分辨率将使消除深积云对流的特别麻烦的参数化成为可能(即,雷暴),从而减少困扰当前ESM的系统性偏差。Earthworks将利用目前由高性能计算供应商推向市场的pre-exascale和exascale技术。新的exascale ESM将在强大的图形处理器单元(GPU)上运行计算密集型组件,并利用节点级任务并行性来异步执行模型的其余部分。组件模型代码已接近完成,目前正在GPU上进行测试。EarthWorks将使用简化的组件耦合方法,在可行的情况下结合机器学习,并利用有损压缩技术和并行I/O工具来处理模型运行时生成的大量数据。完成的模型将是简单的,强大的,并有良好的文档记录。该项目将把它应用于数值天气预报和气候模拟方面的紧迫科学问题。该模型及其输入数据集将通过GitHub向广泛的研究社区开放。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Simulations With EarthWorks
使用 EarthWorks 进行模拟
- DOI:
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:David Randall;James Hurrell;Donald Dazlich;Lantao Sun;William Skamarock;Andrew Gettelman;Thomas Hauser;Sheri Mickelson;Mariana Vertenstein;Richard Loft
- 通讯作者:Richard Loft
Advancing precipitation prediction using a new-generation storm-resolving model framework – SIMA-MPAS (V1.0): a case study over the western United States
- DOI:10.5194/gmd-15-8135-2022
- 发表时间:2022-11
- 期刊:
- 影响因子:5.1
- 作者:Xingying Huang;A. Gettelman;W. Skamarock;P. Lauritzen;Miles Curry;A. Herrington;John T. Truesdale;M. Duda
- 通讯作者:Xingying Huang;A. Gettelman;W. Skamarock;P. Lauritzen;Miles Curry;A. Herrington;John T. Truesdale;M. Duda
EarthWorks: The Computational Science Challenges of building an end-to- end, GPU-enabled, km-Scale Modeling System
EarthWorks:构建端到端、支持 GPU 的公里级建模系统的计算科学挑战
- DOI:
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:R. Loft;S. Mickelson;T Hauser;M. Duda;D. Dickerson;S. Suresh;J. Clyne;J. Sun;C. Fisher;M. Vertenstein
- 通讯作者:M. Vertenstein
Acceleration of the Parameterization of Unified Microphysics Across Scales (PUMAS) on the Graphics Processing Unit (GPU) With Directive‐Based Methods
- DOI:10.1029/2022ms003515
- 发表时间:2023-05
- 期刊:
- 影响因子:6.8
- 作者:Jian Sun;J. Dennis;S. Mickelson;B. Vanderwende;A. Gettelman;K. Thayer‐Calder
- 通讯作者:Jian Sun;J. Dennis;S. Mickelson;B. Vanderwende;A. Gettelman;K. Thayer‐Calder
A Scalable and Efficient Workflow for Compressing High-Resolution Earth System Model Data
用于压缩高分辨率地球系统模型数据的可扩展且高效的工作流程
- DOI:
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Xu, Haiying;Loft, Richard;Paul, Kevin;Banihirwe, Anderson
- 通讯作者:Banihirwe, Anderson
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David Randall其他文献
CSCW: Discipline or Paradigm? A Sociological Perspective
CSCW:纪律还是范式?
- DOI:
10.1007/978-94-011-3506-1_23 - 发表时间:
1991 - 期刊:
- 影响因子:0
- 作者:
J. Hughes;David Randall;D. Shapiro - 通讯作者:
D. Shapiro
RetrofittAR: Supporting Hardware-Centered Expertise Sharing in Manufacturing Settings through Augmented Reality
- DOI:
10.1007/s10606-022-09430-x - 发表时间:
2022-06-30 - 期刊:
- 影响因子:2.300
- 作者:
Sven Hoffmann;Thomas Ludwig;Florian Jasche;Volker Wulf;David Randall - 通讯作者:
David Randall
Biopoetics and Hermeneutics: The Postal Metaphor in Il Postino
生命诗学与诠释学:《Il Postino》中的邮政隐喻
- DOI:
10.5325/intelitestud.19.3.0345 - 发表时间:
2017 - 期刊:
- 影响因子:0.1
- 作者:
David Randall - 通讯作者:
David Randall
Analysis of effects and usage indicators for a ICT-based fall prevention system in community dwelling older adults
基于ICT的跌倒预防系统对社区老年人的效果和使用指标分析
- DOI:
- 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
D. Vaziri;Konstantin Aal;Y. Gschwind;K. Delbaere;Anne Weibert;J. Annegarn;H. D. Rosario;R. Wieching;David Randall;V. Wulf - 通讯作者:
V. Wulf
The Universal Journalist
环球记者
- DOI:
10.2307/j.ctt183p59k - 发表时间:
1996 - 期刊:
- 影响因子:4.7
- 作者:
David Randall - 通讯作者:
David Randall
David Randall的其他文献
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{{ truncateString('David Randall', 18)}}的其他基金
Workshop on Future Storm-Resolving Configurations of Community Earth System Model (CESM); Fort Collins, Colorado; Two days in April 2023
社区地球系统模型(CESM)未来风暴解决配置研讨会;
- 批准号:
2242189 - 财政年份:2023
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
Collaborative Research: A Teleconnection between the Tropical Madden-Julian Oscillation and Arctic Sudden Stratospheric Warming Events in Warm Climates
合作研究:热带马登-朱利安涛动与温暖气候下北极平流层突然变暖事件之间的遥相关
- 批准号:
1826643 - 财政年份:2018
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
Implementation and evaluation of the unified parameterization in NCAR Community Atmospheric Model
NCAR社区大气模型统一参数化的实现与评估
- 批准号:
1538532 - 财政年份:2016
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
CI-P: Cyber-Infrastructure for the Cloud-Climate Community
CI-P:云气候社区的网络基础设施
- 批准号:
1059323 - 财政年份:2011
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
Collaborative Research: Simulations of Anthropogenic Climate Change Using a Multi-Scale Modeling Framework
合作研究:使用多尺度建模框架模拟人为气候变化
- 批准号:
1049041 - 财政年份:2011
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
Collaborative Research: Tropical Variability in a New Generation of Coupled Climate Simulations with Explicitly Resolved Convection
合作研究:新一代耦合气候模拟中的热带变化与显式解析的对流
- 批准号:
1119999 - 财政年份:2011
- 资助金额:
$ 278.92万 - 项目类别:
Continuing Grant
PRAC Collaborative Research: Testing Hypotheses about Climate Prediction at Unprecedented Resolutions on the NSF Blue Waters System
PRAC 合作研究:在 NSF Blue Waters 系统上以前所未有的分辨率测试有关气候预测的假设
- 批准号:
0832705 - 财政年份:2009
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
Center for Multi-Scale Modeling of Atmospheric Processes (MMAP)
大气过程多尺度模拟中心 (MMAP)
- 批准号:
0425247 - 财政年份:2006
- 资助金额:
$ 278.92万 - 项目类别:
Cooperative Agreement
The Madden-Julian Oscillation in General Circulation Models: An Analysis of Factors Relevant to Its Initiation, Maintenance, and Suppression
大气环流模型中的马登-朱利安振荡:与其引发、维持和抑制相关的因素分析
- 批准号:
0224559 - 财政年份:2002
- 资助金额:
$ 278.92万 - 项目类别:
Standard Grant
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