Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095043 |
Compound parameterization to improve the accuracy of radiation emulator in a numerical weather prediction model | |
Hwan-Jin Song; Soonyoung Roh; Hyesook Park | |
2021-10-07 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2021 |
英文摘要 | To improve the numerical weather prediction model over Korea using a neural network (NN) radiation emulator, two types of compound parameterization (CP) were developed. Although the CP returning to the original parameterization causes a considerable increase in the computational time, this increase can be compensated by the infrequent use of the radiation scheme, thus maintaining the 60-fold speedup of the radiation process with the NN emulator. The first CP is based on the prediction of the heating rate error using the additional NN for all given input variables. In contrast, the second CP uses the cloud fraction to diagnose the uncertainty of the NN emulator. As a result of model simulations for independent cases, including extreme flood events, the first CP was the most effective for passive use, whereas the second was useful in active use and exhibited the lowest error. Thus, these CP methods can help improve weather forecasting. |
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/339895 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Hwan-Jin Song,Soonyoung Roh,Hyesook Park. Compound parameterization to improve the accuracy of radiation emulator in a numerical weather prediction model[J]. Geophysical Research Letters,2021. |
APA | Hwan-Jin Song,Soonyoung Roh,&Hyesook Park.(2021).Compound parameterization to improve the accuracy of radiation emulator in a numerical weather prediction model.Geophysical Research Letters. |
MLA | Hwan-Jin Song,et al."Compound parameterization to improve the accuracy of radiation emulator in a numerical weather prediction model".Geophysical Research Letters (2021). |
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