| 风廓线和冰雹指数本地化调整及实例分析 |
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| 引用本文： | 张曙,董根铭.风廓线和冰雹指数本地化调整及实例分析[J].广东气象,2008,30(5):16-18. |
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| 作者姓名： | 张曙 董根铭 |
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| 作者单位： | 韶关市气象局,广东韶关,512026 |
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| 摘 要： | 通过对风廓线斜距，0℃、-20℃层高度及冰雹百分比阈值的修改，观察20km、30km风廓线及订正前后冰雹指数的输出，得到了一些具有韶关本地特点的观测现象：斜距调节前后风廓线输出结果差异不大；冰雹指数产品在订正前后有比较明显的不同，对比分析表明用缺省参数比较符合冰雹发生时的实际情况，这种情况可能与广东地处低纬度地区有关。
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| 关 键 词： | 大气探测 参数调整 风廓线 冰雹指数 多普勒雷达 |
Case Study on the Localization of the Profiler Parameters and Hail Index |
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| ZHANG Shu,DONG Gen-ming.Case Study on the Localization of the Profiler Parameters and Hail Index[J].Journal of Guangdong Meteorology,2008,30(5):16-18. |
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| Authors: | ZHANG Shu DONG Gen-ming |
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| Institution: | ZHANG Shu, DONG Gen - ming (Shaoguan Meteorological Office, Shaoguan 512026,China) |
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| Abstract: | Modifications were applied to the profiler parameters such as slant, altitude of 0℃ and -20 ℃, and the thresholds of POH, to study the change of 20 km/30km wind profile, hail index after the modifications. Some results with local characteristics of Shaoguan show that, little change happened to the wind profile after the modifications; while significant difference occurred to the Hail Index, with default parameters better explaining the hail observations. And this might be related to the low latitude location of Guangdong province. |
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| Keywords: | atmospheric sounding modification of parameters wind profile hail index doppler radar |
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