| MODIS沙尘暴判识方法与业务系统 |
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| 引用本文： | 郭铌,蔡迪花,韩兰英,梁芸,李民轩.MODIS沙尘暴判识方法与业务系统[J].气象,2009,35(1):102-107. |
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| 作者姓名： | 郭铌 蔡迪花 韩兰英 梁芸 李民轩 |
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| 作者单位： | 1. 中国气象局兰州干旱气象研究所;甘肃省干旱气候变化与减灾重点实验室
2. 兰州区域气候中心 |
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| 摘 要： | 为了利用MODIS资料对沙尘暴的范围和强度进行定量判识,应用2002--2004年多次MODIS资料,通过对沙尘暴、云、雪和沙漠光谱特征的分析,构建了定量判识沙尘暴范围和强度的两个沙尘指数.利用2002-2007年数次沙尘暴过程对沙尘指数的判别效果进行检验,表明构建的两个M()DIS沙尘指数能够有效地监测沙尘暴的范围和强度,且方法简单,适用于业务应用.针对目前西北沙尘暴遥感监测业务服务以定性图像为主,服务产品较为单一的问题,对MODIS沙尘暴判识方法进行业务化,并结合GIS进行沙尘暴影响范围的分析,开发研制了自动运行的MODIS沙尘暴监测和影响评估业务系统.系统具生成沙尘暴MODIS影像图、沙尘暴范围和强度遥感监测图、沙尘暴影响土地类型图、全国各省(直辖市)沙尘面积统计表、全国不同土地类型沙尘暴影响面积统计表、甘肃省各县沙尘暴的影响面积统计表和甘肃省不同土地类型沙尘影响面积统计表等功能,为沙尘暴定量和精细服务提供了丰富的产品.
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| 关 键 词： | MODIS 沙尘暴 遥感监测 沙尘指数 业务系统 |
| 收稿时间： | 2008/8/11 0:00:00 |
| 修稿时间： | 2008/9/25 0:00:00 |
Introduction to the Operational System and Identification Method of Dust Strom Based on MODIS |
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| Guo Ni,Cai Dihu,Han Lanying,Liang Yun and Li Minxuan.Introduction to the Operational System and Identification Method of Dust Strom Based on MODIS[J].Meteorological Monthly,2009,35(1):102-107. |
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| Authors: | Guo Ni Cai Dihu Han Lanying Liang Yun and Li Minxuan |
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| Institution: | 1.Institute of Arid Meteorology of China Meteorological Administration;Key Laboratory of Arid Climatic Changes and Reducing Disaster of Gansu Province;Key Open Laboratory of Arid Climatic Changes and Reducing of China Meteorological Administration;Lanzhou 730020;2.Area Climatic Center of Lanzhou |
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| Abstract: | Abstract:Based on the analyses of the spectral characteristic of dust storm,cloud,snow and desert using the several MODIS data during the period from 2002 to 2004,two dust indices were constructed,which can determine quantitatively the scope and intensity of dust storm.The test results in several storms from 2002 to 2007 indicated that the above-built dust indices could effec- tively determine the scope and intensity of dust storms,and are proved to be simple and operable. In order to solve the actual issue... |
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| Keywords: | MODIS dust storm remote sensing monitoring dust index operation system |
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