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http://dx.doi.org/10.3741/JKWRA.2020.53.6.417

Areal average rainfall estimation method using multiple elevation data of an electromagnetic wave rain gauge  

Lim, Sanghun (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
Choi, Jeongho (Department of Mechatronics Engineering, Chosun College of Science & Technology)
Kim, Won (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korea Water Resources Association / v.53, no.6, 2020 , pp. 417-425 More about this Journal
Abstract
In order to predict and prevent hydrological disasters such as flood, it is necessary to accurately estimate rainfall. In this paper, an areal average rainfall estimation method using multiple elevation observation data of an electromagnetic wave rain gauge is presented. The small electromagnetic rain gauge system is a very small precipitation radar that operates at K-band with dual-polarization technology for very short distance observation. The areal average rainfall estimation method is based on the assumption that the variation in rainfall over the observation range is small because the observation distance and time are very short. The proposed method has been evaluated by comparing with ground instruments such as tipping-bucket rain gauges and a Parsivel. The evaluation results show that the methodology works fairly well for the rainfall events which are shown here.
Keywords
Electromagnetic wave rain gauge; Multiple elevation; Dual polarization; Rainfall estimation;
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  • Reference
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