| 基于MODIS数据的作物苗期干旱监测方法 |
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| 引用本文： | 冯锐,张玉书,纪瑞鹏,陈鹏狮,张淑杰,孙龙彧,武晋雯.基于MODIS数据的作物苗期干旱监测方法[J].气象科技,2008,36(5):606-608. |
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| 作者姓名： | 冯锐 张玉书 纪瑞鹏 陈鹏狮 张淑杰 孙龙彧 武晋雯 |
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| 作者单位： | 1. 中国气象局沈阳大气环境研究所,沈阳,110016
2. 沈阳市气象局,沈阳,110168 |
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| 基金项目： | 中国气象局资助项目，中国气象局资助项目，科技部科研项目 |
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| 摘 要： | 针对苗期低植被覆盖情况,在原有的归一化植被指数基础上,增加了土壤调节植被指数,将其与条件温度指数结合,通过与地面实测土壤相对湿度进行相关分析,分别建立作物苗期的干旱监测模型,并与热惯量方法和供水植被指数方法进行对比分析,初步得出辽宁省范围内作物苗期进行大范围干旱遥感监测的最适宜模型为土壤调节植被指数一温度模型.
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| 关 键 词： | MODIS苗期 干旱监测模型 |
| 修稿时间： | 2008/2/14 0:00:00 |
MODIS Based Drought Monitoring Method at Crop Seedling Stage |
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| Feng Rui,Zhang Yushu,Ji Ruipeng,Chen Pengshi,Zhang Shujie,Sun Longyu and Wu Jinwen.MODIS Based Drought Monitoring Method at Crop Seedling Stage[J].Meteorological Science and Technology,2008,36(5):606-608. |
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| Authors: | Feng Rui Zhang Yushu Ji Ruipeng Chen Pengshi Zhang Shujie Sun Longyu and Wu Jinwen |
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| Institution: | Institute of Atmospheric Environment, CMA, Shenyang 110016;Institute of Atmospheric Environment, CMA, Shenyang 110016;Institute of Atmospheric Environment, CMA, Shenyang 110016;Institute of Atmospheric Environment, CMA, Shenyang 110016;Institute of Atmospheric Environment, CMA, Shenyang 110016;Shenyang Meteorological Bureau, Shenyang 110168;Institute of Atmospheric Environment, CMA, Shenyang 110016 |
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| Abstract: | The drought monitoring model at seedling stage under the condition of low coverage vegetation is established based on NDVI with MODIS and soil moisture data. The model combines soil adjusted vegetation index (SAVI) with temperature condition index (TCI) on the basis of the correlation analysis of observed soil moisture and relative humidity. Comparison between thermal inertia method and SAVI TCI method based on vegetation supply water index method is conducted. The results indicate that the SAVI TCI method is better in monitoring large area crops at seedling stage in Liaoning Province |
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| Keywords: | MODIS seedling stage drought monitoring |
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