| 项目编号: | 1638194
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| 项目名称: | EAGER: Adjustment to Balance in the Shallow Water Adjoint System |
| 作者: | Michael Morgan
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| 承担单位: | University of Wisconsin-Madison
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| 批准年: | 2016
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| 开始日期: | 2016-07-01
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| 结束日期: | 2018-06-30
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| 资助金额: | 113817
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | adjustment process
; sensitivity
; adjoint
; weather system
; year eager project
; adjoint method
; adjoint model
; adjoint adjustment
; eager project
|
| 英文摘要: | This one year EAGER project seeks to do the following: (i) conduct a set of numerical experiments to verify the investigator's previous analytic work demonstrating the adjustment process during weather model initialization using what are called "adjoint methods"; (ii) determine whether evidence for an adjoint adjustment holds in a time-dependent basic state and how adjustment is manifest in sensitivities to direct and diagnosed model variables; and (iii) describe how ensemble-derived sensitivities from the Weather Research and Forecasting (WRF) model compare with adjoint derived sensitivities and determine whether there is evidence that an adjustment process can be seen in these sensitivities as well.
The key features of this EAGER project are: (i) it provides a robust, previously tested foundation for understanding the adjustment process seen in the adjoints of operational and research NWP models, (ii) a pathway to develop and interpret sensitivities to potential vorticity (PV) and the unbalanced components of the flow in diagnostic case studies of weather systems using adjoint models, and (iii) the work will provide insight into whether the balanced or unbalanced components of data innovations are preserved in 4DVAR data assimilation. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91941
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Michael Morgan. EAGER: Adjustment to Balance in the Shallow Water Adjoint System. 2016-01-01.
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