| TM影像反射率对干旱区土壤含水量的响应特征 |
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| 引用本文： | Li BF,Li WH,Cao ZC. TM影像反射率对干旱区土壤含水量的响应特征[J]. 光谱学与光谱分析, 2011, 31(10): 2824-2828. DOI: 10.3964/j.issn.1000-0593(2011)10-2824-05 |
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| 作者姓名： | Li BF Li WH Cao ZC |
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| 作者单位： | 1. 中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011;荒漠与绿洲生态国家重点实验室,新疆乌鲁木齐830011;中国科学院研究生院,北京100049
2. 中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011;荒漠与绿洲生态国家重点实验室,新疆乌鲁木齐830011 |
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| 基金项目： | 国家重点基础研究发展计划项目(2010CB951003); 国家自然科学基金项目(40901105); 西部之光人才培养计划项目(XBBS200810)资助 |
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| 摘 要： | 以TM影像对塔里木河中游土壤含水量的响应特征为研究对象,选取影像光谱(R)、光谱倒数(1/R)、光谱倒数之对数lg( 1/R)和去除归一化植被指数(Rc)四种光谱指标,分别建立土壤含水量的预测模型,并利用方差检验验证模型的显著性,采用后验差法划分模型精度级别.结果表明:光谱倒数之对数lg(1/R)预测土壤含水量的模型精...
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| 关 键 词： | TM影像反射率 干旱区 土壤含水量 塔里木河 |
The response characteristics of TM image reflectance to the arid region of soil moisture |
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| Li Bao-Fu,Li Wei-Hong,Cao Zhi-Chao. The response characteristics of TM image reflectance to the arid region of soil moisture[J]. Spectroscopy and Spectral Analysis, 2011, 31(10): 2824-2828. DOI: 10.3964/j.issn.1000-0593(2011)10-2824-05 |
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| Authors: | Li Bao-Fu Li Wei-Hong Cao Zhi-Chao |
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| Affiliation: | LI Bao-fu1,2,3,LI Wei-hong1,2*,CAO Zhi-chao1,31.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China2.State Key Laboratory of Desert and Oasis Ecology,China3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | The response characteristics of TM image to the soil moisture in the Tarim River are the research object.Selected the image spectrum(R),spectrum reciprocal(1/R),the logarithm of reciprocal spectrum lg(1/R) and removal normalized difference vegetation index(Rc) of four spectral index were selected to establish the soil moisture content prediction model,the variance test was used to validate the model significance,the model accuracy level was divided by the posterior variance examination.The results showed th... |
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| Keywords: | TM image reflectance Arid Soil moisture Tarim river |
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