Advances in Meteorology / 2010 / Article / Fig 3

Research Article

Evaluation of the WRF Double-Moment 6-Class Microphysics Scheme for Precipitating Convection

Figure 3

Modeled number concentrations of (a) cloud droplets and (b) raindrops over the regions “A” (closed circles) and “B” (open circles), as marked in Figure 2(a). The region “A” represents a relatively heavy rainfall region near the center of a cyclone, whereas a non-precipitating cloud region is observed in region “B.” The values are obtained from the cloud area averaged values during the six hours from 0600 UTC to 1200 UTC 24 February 2008. Solid lines indicate the results from the WDM6 scheme and dotted lines are from the WSM6 scheme. The number concentration for raindrops can be calculated using the slope of rain size distribution and intercept parameter of rain in the WSM6 microphysics scheme. A cloudy area is defined as either or .

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