|
|||||
|
|
| 一类三阶微分方程组边值问题特殊正解的存在性 | |
| 引用本文： | 唐玉莲,夏大峰.一类三阶微分方程组边值问题特殊正解的存在性[J].南京气象学院学报,2012,4(1):87-91. |
| 作者姓名： | 唐玉莲 夏大峰 |
| 作者单位： | 1. 海南省气象科学研究所,海南海口570203／中国气象科学研究院云雾物理环境重点开放实验室,北京100081 2. 海南省气象科学研究所,海南海口,570203 3. 中国科学院大气物理研究所云降水物理与强风暴实验室,北京,100029 4. 海口市气象局,海南海口,570203 |
| 基金项目： | 中国气象局云雾物理环境重点开放实验室开放科研课题（200920037）;国家自然科学基金资助项目（40875080）;公益性行业（气象）科研专项（GYHY（QX）201006031;GYHY（QX）200906002）;青海省三江源人工增雨工程科技支撑计划项目（2009-Q-04） |
| 摘 要： | 采用地面降水资料、多普勒雷达数据、探空资料等，利用自主开发的系统软件对实测资料进行增雨效果统计检验，通过目标区作业前后雷达参量的演变或目标区与对比区的回波参量的差异，来完整的分析2010年8月11日海南西部多点作业情况的催化效果。物理统计分析结果显示，催化一般在作业后半小时内起到效果并达到最强，目标区的最大强度、强回波区面积、液态水含量、回波顶高的增大率大于对比区的值，催化作业确实延长了目标云的寿命。 |
| 关 键 词： | 多普勒雷达数据 目标区 对比区 增雨效果分析 |
| 收稿时间： | 2011/4/9 0:00:00 |
The existence of special positive solutions of a class of boundary value problems for systems of third order differential equations |
|
| TANG Yulian and XIA Dafeng.The existence of special positive solutions of a class of boundary value problems for systems of third order differential equations[J].Journal of Nanjing Institute of Meteorology,2012,4(1):87-91. | |
| Authors: | TANG Yulian and XIA Dafeng |
| Institution: | 4 ( 1. Hainan Institute of Meteorological Sciences, Haikou 570203, China; 2. Key Laboratory for Cloud Physics and Weather Modification, China Academy of Meteorological Sciences, Beijing 100081, China; 3. Laboratory of Cloud-Precipitation Physics and Severe Storms, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China ;4. Haikou Bureau of Meteorology, Haikou 570203, China) |
| Abstract: | Based on the precipitation data, Doppler radar data and sounding figures, the paper statistically tests the effect of artificial precipitation enhancement by using a self-developed effect-evaluating software system. By comparing the differences of Doppler radar echo characteristics between the target clouds and the contrast clouds, the effect of rain enhancement is studied by evaluating the multi-point operations in the west part of Hainan Province on August 11,2010. The results show that the effect of seeding starts in half an hour after seeding in the target area and reaches the peak. Compared with the contrast clouds, the increase rates are larger for such parameters as the maximum echo intensity, the stronger echo area, echo tops and the values of the vertically integrated liquid water content of the target cloud. The results also indicate that the seedin~ operations indeed extend the life of the target clouds. |
| Keywords: | Doppler radar data the target area the contrast area precipitation enhancement effect analysis |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《南京气象学院学报》浏览原始摘要信息 | |
| 点击此处可从《南京气象学院学报》下载免费的PDF全文 | |