Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091110 |
Measuring theoretical and actual observation influence in the Met Office UKV: application to Doppler radialwinds | |
A. M. Fowler; D. Simonin; J. A. Waller | |
2020-11-16 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2020 |
英文摘要 | In numerical weather prediction it is important to objectively measure the value of the observations assimilated. However, methods such as the forecast sensitivity to observation impact and observing system experiments are difficult to apply to convective scale data assimilation (DA) systems such as the Met Office's UKV. We develop a new method to estimate the influence of the observations on the analysis, acknowledging that the influence depends not only on the uncertainty in the observations and prior, but how well these are prescribed in the assimilation. Monitoring both the actual and theoretical observation influence can flag observations that are being assimilated incorrectly and quantify the harm caused to the analysis. By applying these new estimates of the observation influence to the assimilation of Doppler Radial Winds in the UKV system, we demonstrate their ability, along with expert knowledge, to inform the optimisation of both the observation network and DA system. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/304325 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | A. M. Fowler,D. Simonin,J. A. Waller. Measuring theoretical and actual observation influence in the Met Office UKV: application to Doppler radialwinds[J]. Geophysical Research Letters,2020. |
APA | A. M. Fowler,D. Simonin,&J. A. Waller.(2020).Measuring theoretical and actual observation influence in the Met Office UKV: application to Doppler radialwinds.Geophysical Research Letters. |
MLA | A. M. Fowler,et al."Measuring theoretical and actual observation influence in the Met Office UKV: application to Doppler radialwinds".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论