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| 宁夏冰雹时空分布特征 | |
| 引用本文： | 张智,林莉,冯瑞萍,杨侃.宁夏冰雹时空分布特征[J].气象科技,2008,36(5):567-569. |
| 作者姓名： | 张智 林莉 冯瑞萍 杨侃 |
| 作者单位： | 1. 宁夏气象信息中心;宁夏气象防灾减灾重点实验室,银川,750002 2. 宁夏气象信息中心 3. 宁夏气象防灾减灾重点实验室,银川,750002 |
| 摘 要： | 利用宁夏20个气象站1961～2006年冰雹天气实测资料及NCEP/NCAR再分析资料,统计分析了宁夏冰雹日数的空间分布、年际变化、月际变化和持续时间等时空分布特征.分析表明:宁夏20世纪60～80年代为冰雹多发期;冰雹集中出现在4～9月;受地形和海拔高度的影响,南部山区是宁夏冰雹的多发区.90年代以后冰雹日数、同日出现冰雹的地域范围、冰雹持续时间均明显减少,大气环流的变化起着主要的作用. |
| 关 键 词： | 宁夏 冰雹 时空分布 气候成因 |
| 收稿时间： | 6/6/2007 12:00:00 AM |
| 修稿时间： | 2007/10/10 0:00:00 |
Characteristics of Temporal and Spatial Distribution of Hails in Ningxia |
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| Zhang Zhi,Lin Li,Feng Ruiping and Yang Kan.Characteristics of Temporal and Spatial Distribution of Hails in Ningxia[J].Meteorological Science and Technology,2008,36(5):567-569. | |
| Authors: | Zhang Zhi Lin Li Feng Ruiping and Yang Kan |
| Institution: | Ningxia Meteorological Information Center, Ningxia Key Laboratory of Meteorological Disasters Preventing and Reducing, Yinchuan 750002;Ningxia Meteorological Information Center;Ningxia Meteorological Information Center;Ningxia Key Laboratory of Meteorological Disasters Preventing and Reducing, Yinchuan 750002 |
| Abstract: | An analysis is made of the statistical characteristics of the spatial distribution, annual distribution and variation, and daily change of hailing days, as well as hailing duration, with the hail data of recent 46 years from 20 meteorological stations in Ningxia and NCEP/NCAR reanalysis data. The analysis shows that hailing days reached the peak in the 1980s; hail storms occurred mostly from April to September; the southern Ningxia was the most frequently attacked area by hail storms; the number of hailing days, the area of hailing in the same day, hailing duration, and the maximum diameter of hailstones all show a decreasing trend from the 1990s. |
| Keywords: | Ningxia hail temporal and spatial distribution |
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