Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1638194 |
EAGER: Adjustment to Balance in the Shallow Water Adjoint System | |
Michael Morgan | |
主持机构 | University of Wisconsin-Madison |
项目开始年 | 2016 |
2016-07-01 | |
项目结束日期 | 2017-06-30 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 113817(USD) |
国家 | 美国 |
语种 | 英语 |
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. |
来源学科分类 | Geosciences - Atmospheric and Geospace Sciences |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/69717 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Michael Morgan.EAGER: Adjustment to Balance in the Shallow Water Adjoint System.2016. |
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