Abstract
A key challenge in rainfall estimation is spatio-temporal variablility. Weather radars are used to estimate precipitation with high spatial and temporal resolution. Due to the inherent errors in radar estimates, spatial interpolation has been often employed to calibrate the estimates. Kriging is a simple and popular spatial interpolation method, but the method has several shortcomings. In particular, the prediction is quite unstable and often fails to be performed when sample size is small. In this paper, we proposed a flexible and efficient spatial interpolator for radar rainfall estimation, with several advantages over kriging. The method is illustrated using a real-world data set.
Original language | English |
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Pages (from-to) | 829-844 |
Number of pages | 16 |
Journal | Journal of Applied Statistics |
Volume | 45 |
Issue number | 5 |
DOIs | |
State | Published - Apr 4 2018 |
Keywords
- deterministic spatial interpolation
- Radar rainfall estimation
- spatial prediction
- spatial-temporal
- uncertainty quantification