《Table 4.Average accumulated precipitation(units:mm)of the WDM6 scheme simulation,the Thompson schem
| 图表编号 | B1666574666 |
|---|---|
| 出版时间 | 2019.11.01 图表说明 ➫ |
| 作者 | LEI Hengchi、GUO Jiaxu、CHEN Di、YANG Jiefan |
| 研究主题 | 两种双参数微物理方案暖云粒子谱及雨滴源汇模拟对比研究（英文） |
| 出版单位 | Key Laboratory of Cloud-Precipitation Physics and Severe Storms, Institute of Atmospheric Physics, Chinese Academy of Sciences、College of Earth and Planetary Sciences, University of Chinese Academy of Sciences、Collaborative Innovation Center on the Foreca |
| 下载格式 | JPG、GIF（含无水印/未压缩） |
| 图片大小 | 20KB~2M（视下载方式而定） |
| 定制格式 | Excel、Word、PDF、PPT |
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《Table 4.Average accumulated precipitation(units:mm)of the WDM6 scheme simulation,the Thompson schem图表
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两种双参数微物理方案暖云粒子谱及雨滴源汇模拟对比研究（英文）中，The simulated 0000–1800 UTC accumulated precipitation is presented in Figure 1（a，b）.Generally，simulation using either scheme agrees with the observations（Figure 1(d）)in location.Both simulations have a rainfall center of over 300 mm in central Beijing and the simulated accumulated precipitation of both schemes is larger than the observations.The probability distribution of hourly precipitation of the Thompson scheme is closer to the observation than that of the WDM6 scheme.The WDM6 scheme underestimates the ratio of precipitation smaller than 5 mm h-1and overestimates the ratio of larger precipitation at the same time（Figure 1(f）).As shown in Table 4，the average precipitation is larger when the WDM6 scheme produces more precipitation.Meanwhile，the WDM6 scheme overestimates larger precipitation and underestimates smaller precipitation compared to the observation.Two typical domains（marked as domain A and B in Figure 1(c）)around Beijing are chosen to explore the differences and the corresponding microphysical causes in hydrometeor characteristics between the two schemes.The simulated radar reflectivity of both schemes compares well with the observation in domain A.However，the WDM6 scheme shows a delay of precipitation in domain B，as presented in Figure 2.In domain A，the WDM6 scheme generally produces more precipitation than the Thompson scheme，while the opposite happens in domain B.Domain A is mainly dominated by updrafts，with a maximum average vertical velocity exceeding 0.5 m s-1.Downdrafts are dominant at a lower level in domain B in both schemes，as shown in Figure 3.
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