Convective Modeling and Predictabilty Studies
对流模拟和可预测性研究
基本信息
- 批准号:8815371
- 负责人:
- 金额:$ 17.76万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-02-15 至 1991-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
There is an inherent limit to the predictability of atmospheric numerical models. The principal reason for this limit is generally considered to be the nonlinear interactions between different components of the wave spectrum; uncertainties and errors in the wave spectrum resolvable by the model and errors introduced by the neglect of unresolved waves grow with integration in time, spreading throughout the spectrum, and eventually destroy the forecast. Meteorologists now have some understanding of predictability of large scale models used for weather forecast; the spatial resolution is roughly hundreds of kilometers. Numerical models for convective- and meso- scale meteorological events have grown in sophistication in recent years, the question of predictability can now be investigated. The spatial resolution of convective-scale models is roughly 1-2 km, and 20-100 km for mesoscale models. Under this award, Professor Droegemeier will investigate the predictability of a convective-scale model, which has been used to study the dynamics of thunderstorm outflow and microbursts and demonstrated some success in simulating these convective-scale events. Besides examining the sensitivity of the model prediction to different aspects of the initial conditions, Professor Droegemeier will look for ways to initialize the model with direct Doppler radar observations; he will also continue his work on adapting the Piecewise Parabolic Method to meteorological problems.
对可预测性的固有限制 大气数值模式 主要原因是 极限通常被认为是非线性相互作用 波谱的不同分量之间的不确定性 以及模型可分辨的波谱中的误差, 由于忽略未分辨波而引入的误差随着 在时间上的积分,在整个频谱中扩展,以及 最终会破坏预测。 气象学家现在有一些 了解用于以下目的的大规模模型的可预测性: 天气预报;空间分辨率约为数百 公里 对流和中尺度数值模式 近年来,气象事件变得越来越复杂, 多年来,可预测性的问题现在可以研究。 对流尺度模式的空间分辨率大致为1-2 中尺度模式为20-100公里。 在这个奖项下,Droegemeier教授将研究 一个对流尺度模型的可预测性,已被使用 研究雷暴外流和微暴流的动力学, 在模拟这些对流尺度上取得了一些成功, 事件 除了检查模型的敏感性 对初始条件的不同方面进行预测, Droegemeier教授将寻找初始化模型的方法 直接多普勒雷达观测;他还将继续他的 分段抛物线法在气象学中的应用 问题
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)
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Kelvin Droegemeier其他文献
Stratified Turbulence in the Atmospheric Mesoscales
- DOI:
10.1007/s001620050085 - 发表时间:
1998-06-01 - 期刊:
- 影响因子:2.800
- 作者:
Douglas K. Lilly;Gene Bassett;Kelvin Droegemeier;Peter Bartello - 通讯作者:
Peter Bartello
Kelvin Droegemeier的其他文献
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{{ truncateString('Kelvin Droegemeier', 18)}}的其他基金
Information Technology Research (ITR): Linked Environments for Atmospheric Discovery (LEAD)
信息技术研究 (ITR):大气发现的关联环境 (LEAD)
- 批准号:
0331594 - 财政年份:2003
- 资助金额:
$ 17.76万 - 项目类别:
Cooperative Agreement
Collaborative Research: Scale-Recursive Estimation of Precipitation for Applications to Quantitative Precipitation Forecast (QPF) Verification and Multisensor Estimation
合作研究:降水的尺度递归估计应用于定量降水预报(QPF)验证和多传感器估计
- 批准号:
0130396 - 财政年份:2002
- 资助金额:
$ 17.76万 - 项目类别:
Continuing Grant
National Symposium on the Great Plains Tornado Outbreak of May 3, 1999; Oklahoma City, Oklahoma; April 30-May 3, 2000
1999年5月3日全国大平原龙卷风爆发研讨会;
- 批准号:
0002255 - 财政年份:2000
- 资助金额:
$ 17.76万 - 项目类别:
Standard Grant
Dynamics of Rotation and Scale Selection in Deep Convective Storms
深对流风暴中的旋转动力学和尺度选择
- 批准号:
9981130 - 财政年份:2000
- 资助金额:
$ 17.76万 - 项目类别:
Continuing Grant
Research Experiences for Undergraduates at the Oklahoma Weather Center
俄克拉荷马州气象中心本科生的研究经验
- 批准号:
9820587 - 财政年份:1999
- 资助金额:
$ 17.76万 - 项目类别:
Standard Grant
1997 U.S.-Korea Seminar on Storm- and Mesoscale Weather Analysis and Prediction
1997年美韩风暴和中尺度天气分析与预测研讨会
- 批准号:
9722772 - 财政年份:1997
- 资助金额:
$ 17.76万 - 项目类别:
Standard Grant
Acquisition of Equipment to Create the Environmental Computing Applications System
购置设备以创建环境计算应用系统
- 批准号:
9512145 - 财政年份:1995
- 资助金额:
$ 17.76万 - 项目类别:
Standard Grant
Dynamics and Predictability of Convective Storms
对流风暴的动力学和可预测性
- 批准号:
9222576 - 财政年份:1993
- 资助金额:
$ 17.76万 - 项目类别:
Continuing Grant
Presidential Young Investigator: Simulation of Meso-and Convective Scale Dynamics
总统青年研究员:中观和对流尺度动力学模拟
- 批准号:
8657013 - 财政年份:1987
- 资助金额:
$ 17.76万 - 项目类别:
Continuing Grant
Numerical Simulation and Observational Analysis of Thunder- storms and Subcloud Phenomena
雷暴和亚云现象的数值模拟与观测分析
- 批准号:
8604402 - 财政年份:1986
- 资助金额:
$ 17.76万 - 项目类别:
Continuing Grant
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