| 土壤水分的遥感监测方法 |
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| 引用本文： | 田国良.土壤水分的遥感监测方法[J].遥感学报,1991(2). |
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| 作者姓名： | 田国良 |
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| 作者单位： | 中国科学院遥感应用研究所 |
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| 基金项目： | 国家“七五”科技攻关项目 |
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| 摘 要： | 本文讨论了用雷达图像散射系数法、NOAA-AVHRR数字图像热惯量法和作物缺水指数法监测土壤水分的结果,并将这些方法与常规气象方法、绿度指数法和温差法监测土壤水分的效果进行了比较和评价。结果表明,微波遥感监测土壤水分有广阔的应用前景,但必须深入开展基础研究。在我国目前情况下,采用NOAA-AVHRR数字图像及有关气象数据计算热惯量、作物蒸散和缺水指数,从而估算土壤水分的方法是一种比较切实可行的方法。
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| 关 键 词： | 土壤水分 散射系数 热惯量 作物缺水指数 |
Methods for Monitoring Soil Moisture Using Remote Sensing Technique |
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| Tian Guoliang.Methods for Monitoring Soil Moisture Using Remote Sensing Technique[J].Journal of Remote Sensing,1991(2). |
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| Authors: | Tian Guoliang |
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| Abstract: | In this Paper, methods for monitoring soil moisture using remote sensing techniques, including backscattering coefficient using radar image, thermal inertia and crop water stress index using NOAA-AVHRR digital image, were disscussed and compared with conventional. mereorological methods, greenness indices and temperature difference. The results indicated that microwave remote sensing would be great prosperous for monitoring soil moisture, but its base must be researched. For the condition in China, the methods for monitoring soil moisture using NOAA-AVHRR digital image and meteorological station data to calculate thermal inertia, and evapotranspiration and crop water stress index, then estimate soil moisture were feasible. |
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| Keywords: | soil moisture backscattering coefficient thermal inertia crop water stress index |
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