Radar-Derived Quantitative Precipitation Estimation Based on Precipitation Classification

Figure 8

Heavy rainfall in Liuzhou during June 11-12, 2008, as recorded at (or analyzed for) 1300 UTC on June 12: (a) results of the FL algorithm (the abscissas represent longitude, the vertical axis represents latitude, the “+” sign represents the radar location, and colors of “Conv” and “Stra” represent convective and stratiform rainfall, resp.). (b) Distribution of convective, stratiform, and tropical rainfall. (c) Averaged stratiform VPR (the abscissas represent the value of reflectivity in dBZ, the vertical axis represents the altitude in km, the long dashed line is the 0°C isotherm altitude, the red solid line is the VPR before bright band correction. (d) Scatter plot of gauge versus radar-derived 1-h accumulated precipitation (the abscissas represent gauge results in mm, the vertical axis represents radar-derived 1-h accumulated precipitation in mm, and the diagonal line represents the ideal line).

(a)

(b)

(c)

(d)