Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2020.105309 |
Analysis and verification of reconstructed historical extreme precipitation events in an hourly resolution | |
Vojtěch Bližňák, Marek Kašpar, Miloslav Müller, Petr Zacharov | |
2020-10-15 | |
发表期刊 | Atmospheric Research
![]() |
出版年 | 2020 |
英文摘要 | Our knowledge of the course of extreme precipitation events (EPEs) based on both radar and automatic rain gauge measurements is limited to the last two decades; historical events can usually be characterized only by daily precipitation totals. This paper applies a newly developed method that enables the reconstruction of the subdaily course of historical precipitation events using precipitation simulations by the numerical weather prediction (NWP) model COSMO. The method is based on the adjustment of 24-h model precipitation sums by daily rain gauge measurements and on the subsequent correction of 10-min precipitation intensities simulated by the model. The method was applied to obtain subdaily reconstructions of 24 historical EPEs that occurred in the territory of the Czech Republic between 1960 and 2001. Hourly pluviograph records were used as reference data for verification of the reconstructions. In addition, the reconstructed precipitation (adjusted model precipitation) was compared with the raw model precipitation to objectively assess the improvement/deterioration of the precipitation reconstruction using the presented method. The verification was performed using a “fuzzy” point-based approach that considers the model precipitation not only in the pixel where the pluviograph is located but also in neighbouring pixels. The results show that the adjusted model precipitation is in good agreement with pluviograph records in the majority of the reconstructed EPEs, especially if a larger neighbourhood area is considered. In agreement with our previous results, the application of the reconstruction method improves precipitation reconstructions in cases of local convective precipitation. Widespread, predominantly stratiform precipitation is usually well reforecasted by the NWP model; therefore, the presented method does not significantly improve the reconstruction. |
领域 | 地球科学 |
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/299169 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Vojtěch Bližňák, Marek Kašpar, Miloslav Müller, Petr Zacharov. Analysis and verification of reconstructed historical extreme precipitation events in an hourly resolution[J]. Atmospheric Research,2020. |
APA | Vojtěch Bližňák, Marek Kašpar, Miloslav Müller, Petr Zacharov.(2020).Analysis and verification of reconstructed historical extreme precipitation events in an hourly resolution.Atmospheric Research. |
MLA | Vojtěch Bližňák, Marek Kašpar, Miloslav Müller, Petr Zacharov."Analysis and verification of reconstructed historical extreme precipitation events in an hourly resolution".Atmospheric Research (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