| 气象卫星NOAA/AVHRR数据在旱涝灾情动态监测研究中的应用 |
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| 引用本文： | 刘玉梓,张克伟.气象卫星NOAA/AVHRR数据在旱涝灾情动态监测研究中的应用[J].国土资源遥感,1990,1(4):21-30. |
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| 作者姓名： | 刘玉梓 张克伟 |
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| 作者单位： | 河南省地矿厅第三水文地质工程地质队
(刘玉梓，陈光宇)，河南省地矿厅科技处(张克伟) |
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| 基金项目： | 国家重点科技项目75—73项 |
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| 摘 要： | 本文主要叙述了气象卫星NOAA/AVHRR数据在旱涝灾情动态监测研究中的应用。作者采用第4、2、1通道(CH4、2、1)彩色合成图像作为定位判读覆盖云量和农作物长势、旱涝灾情的依据,用CH1、CH2通道反射率数据构成的归一化植被指数(NDVI)作为农作物长势、旱涝灾情的定量判读标准,对河南省1987年夏涝、1988年夏旱及1989年小麦生长期旱情进行了动态监测。研究结果表明,应用NOAA/AVHRR数据,可以准确地确定旱涝范围,划分旱涝等级,量算旱涝面积,定量地监测灾情变化趋势,取得明显的效果。
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| 关 键 词： | 气象 卫星 旱涝 灾情 监测 |
APPLICATION OF NOAA/AVHRR DATA TO THE MONITORING OF CONDITIONS OF DROUGHT AND WATERLOGGING RELATED TO AGRICULTURAL PRODUCTION |
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| Institution: | 1. No. 3 Hydrogeological and Engineering geological Team, Henan Province;
2. Science and Technology Department, the Bureau of Geology and Mineral Resources of Henan Province |
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| Abstract: | An application of NOAA/AVHRR data to the monitoring of conditions of drought and waterlogging related to agricultural production is described in this paper. The CH4.2.1 colour composed images as a basis for qualitative interpretation, and the vegetation index (NDVI) which is formed from the CH1, CH2 reflectivity data as a quantitative standard to monitor the summer waterlogging in 1987, summer drought in 1988 and drought for winter wheat in 1989 were used.The research proved that in a desaster district the NOAA/ AVERR data can be used to determine the extent of desaster, to classify the condition of desaster, to calculate the suffering area and to monitor the tendency of desaster development,and good results call be obtained. |
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