The Role of Weather Radar in Rainfall Estimation and Its Application in Meteorological and Hydrological Modelling—A Review

Remote Sensing

Johanna Orellana-Alvear¹  Rolando Célleri¹  Jana Popová²  Zbyněk Sokol²  Jan Szturc³  Anna Jurczyk³ 

[1] Departamento de Recursos Hídricos y Ciencias Ambientales and Facultad de Ingeniería, Universidad de Cuenca, Cuenca EC10207, Ecuador;Institute of Atmospheric Physics of the Czech Academy of Sciences, Bocni II, 141 00 Praha 4, Czech Republic;Institute of Meteorology and Water Management—National Research Institute, PL 01-673 Warsaw, Poland;

关键词: hydrological modelling;    nowcasting;    QPE;    flash floods;    weather radar;   

DOI  :  10.3390/rs13030351

来源: DOAJ

【 摘 要 】

Radar-based rainfall information has been widely used in hydrological and meteorological applications, as it provides data with a high spatial and temporal resolution that improve rainfall representation. However, the broad diversity of studies makes it difficult to gather a condensed overview of the usefulness and limitations of radar technology and its application in particular situations. In this paper, a comprehensive review through a categorization of radar-related topics aims to provide a general picture of the current state of radar research. First, the importance and impact of the high temporal resolution of weather radar is discussed, followed by the description of quantitative precipitation estimation strategies. Afterwards, the use of radar data in rainfall nowcasting as well as its role in preparation of initial conditions for numerical weather predictions by assimilation is reviewed. Furthermore, the value of radar data in rainfall-runoff models with a focus on flash flood forecasting is documented. Finally, based on this review, conclusions of the most relevant challenges that need to be addressed and recommendations for further research are presented. This review paper supports the exploitation of radar data in its full capacity by providing key insights regarding the possibilities of including radar data in hydrological and meteorological applications.

【 授权许可】

Unknown