| 基于MODIS的冰雪遥感灾害监测与评估技术 |
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| 引用本文： | 莫伟华,王君华,钟仕全,陈燕丽. 基于MODIS的冰雪遥感灾害监测与评估技术[J]. 林业科学, 2009, 45(10) |
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| 作者姓名： | 莫伟华 王君华 钟仕全 陈燕丽 |
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| 作者单位： | 广西气象减灾研究所,南宁,530022;广西气象减灾研究所,南宁,530022;广西气象减灾研究所,南宁,530022;广西气象减灾研究所,南宁,530022 |
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| 基金项目： | 广西自然科学基金项目,广西气象局重点项目 |
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| 摘 要： | 以2008年初广西东北部遭受的持续性大范围特大冰雪灾害为例,基于EOS/MODIS数据,构建改进的归一化差分冰雪指数模型(MNDSI),综合应用监督分类方法,对受灾林区进行遥感监测与灾情分级评估技术研究,为及时应对此类灾害性气候事件和防灾减灾提供科学依据.
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| 关 键 词： | 冰雪灾害 遥感监铡 信息提取 灾情评估 |
Techniques for Monitoring and Evaluating the Snow and Ice Disaster Base d on MODIS Model |
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| Mo Weihua,Wang Junhua,Zhong Shiquan,Chen Yanli. Techniques for Monitoring and Evaluating the Snow and Ice Disaster Base d on MODIS Model[J]. Scientia Silvae Sinicae, 2009, 45(10) |
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| Authors: | Mo Weihua Wang Junhua Zhong Shiquan Chen Yanli |
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| Abstract: | With global climate change, extreme weather and climate events such as snow and ice disasters could occur from time to time in the southern China, however techniques for monitoring and evaluating the disasters are missing. In this paper, by using a case study of a continuous and wide range of snow-disaster in the north-eastern part of Guangxi suffered in early 2008, a modified normalized difference snow index (MNDSI) model was constructed based on EOS/MODIS data. Integrated monitoring and classifying methods were then developed in remote sensing monitoring and classification evaluation of the suffered forest area. The techniques would provide a scientific basis for timely response to the disasters, and for disaster prevention and mitigation of such extreme climate events. |
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| Keywords: | snow and ice disasters remote sensing monitoring information extraction disaster assessment |
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