Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.06.005 |
Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe | |
Mejsnar, Jan1,2; Sokol, Zbynek1; Minarova, Jana1 | |
2018-11-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 213页码:288-301 |
文章类型 | Article |
语种 | 英语 |
国家 | Czech Republic |
英文摘要 | Current precipitation nowcasting systems primarily use the extrapolation of observed radar reflectivity. The study focuses on both the extrapolation and the limits of predictability of precipitation using the concept of decorrelation time (DCT). The DCT analysis is based on reflectivity measurements from two radars covering the Czech Republic during the warm season (May-September) of four years (2009-2012). The analysis shows that that the mean DCT for the extrapolation forecast is 45.4 min, whereas the DCT for the persistent forecast is 13.4 min shorter. However, the DCT may increase or decrease by > 40% depending on current meteorological conditions. The investigation of the evolution of DCT in time during two storm events in the Czech Republic suggests that the DCT may significantly vary in time as a consequence of changing character of the precipitation systems. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442169800024 |
WOS关键词 | PART I ; LAGRANGIAN EXTRAPOLATION ; SEVERE CONVECTION ; SCALE-DEPENDENCE ; PREDICTABILITY ; FORECASTS ; ENSEMBLE ; TRACKING ; IMAGES ; VERIFICATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/38285 |
专题 | 地球科学 |
作者单位 | 1.Czech Acad Sci, Inst Atmospher Phys, Bocni 2, Prague 14131, Czech Republic; 2.Charles Univ Prague, Fac Math & Phys, Dept Atmospher Phys, V Holesovickach 2, Prague 18000, Czech Republic |
推荐引用方式 GB/T 7714 | Mejsnar, Jan,Sokol, Zbynek,Minarova, Jana. Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe[J]. ATMOSPHERIC RESEARCH,2018,213:288-301. |
APA | Mejsnar, Jan,Sokol, Zbynek,&Minarova, Jana.(2018).Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe.ATMOSPHERIC RESEARCH,213,288-301. |
MLA | Mejsnar, Jan,et al."Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe".ATMOSPHERIC RESEARCH 213(2018):288-301. |
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