| 利用静止卫星云图进行二维傅里叶相位导风试验 |
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| 引用本文： | 张红,王振会,许建明.利用静止卫星云图进行二维傅里叶相位导风试验[J].高原气象,2006,25(1):105-109. |
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| 作者姓名： | 张红 王振会 许建明 |
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| 作者单位： | 1. 南京信息工程大学KLME,江苏,南京,210044;南京信息工程大学,电子工程系,江苏,南京,210044
2. 南京信息工程大学,电子工程系,江苏,南京,210044 |
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| 摘 要： | 根据二维傅里叶相位分析原理,对1 min间隔的IR云图进行由云推导风的反演。利用模块高度频数直方图把云分为高、中、低云。对连续三幅IR云图进行二维傅里叶相位导风计算,得到两个反演风场,对两个风场相同位置上的风矢进行逐点比较,剔除风向或风速差别较大的风矢,再对处理后的风场进行高度调整法的质量控制,把不合理的风矢剔除或调整到合理的高度层,得到连续性较好的风场。
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| 关 键 词： | 云导风(CMW) 傅里叶相位分析 质量控制 高度调整 |
| 文章编号： | 1000-0534（2006）01-0105-05 |
| 收稿时间： | 2004-03-04 |
| 修稿时间： | 2004-03-042004-06-31 |
An Experiment to Derive Cloud Motion Vectors from Satellite Images with 2-D Fourier Phase Analysis Technique |
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| ZHANG Hong,WANG Zhen-hui,XU Jian-ming.An Experiment to Derive Cloud Motion Vectors from Satellite Images with 2-D Fourier Phase Analysis Technique[J].Plateau Meteorology,2006,25(1):105-109. |
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| Authors: | ZHANG Hong WANG Zhen-hui XU Jian-ming |
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| Institution: | 1. KLME, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2. Department of Electronic Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China |
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| Abstract: | The 2-D Fourier phase analysis is used to process 1 minute intervalIR imagery in order to retrieve the cloud motionwind field.Histogram of the cloud top heights is used to assign CMW vectors onto three levels,such as high-,middle- and low- level clouds.Comparing with the 2 wind fields derived from 3 adjacent images based on continuity analysis,unreasonablewind vectors in wind direction and speed would be eliminated and heights assigned can be modified. |
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| Keywords: | Cloud motion wind 2-D Fourier phase analysis Quality control Height updating |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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