| 采用6S模型的多时相MODIS植被指数NDVI归一化方法 |
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| 引用本文： | 甘文霞, 沈焕锋, 张良培, 龚威. 采用6S模型的多时相MODIS植被指数NDVI归一化方法[J]. 武汉大学学报 ( 信息科学版), 2014, 39(3): 300-304. DOI: 10.13203/j.whugis20120731 |
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| 作者姓名： | 甘文霞 沈焕锋 张良培 龚威 |
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| 作者单位： | 1 武汉大学测绘遥感信息工程国家重点实验室,湖北 武汉,430079;2 武汉大学资源与环境科学学院,湖北 武汉,430079 |
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| 基金项目： | 国家973计划资助项目(2009CB723905,2011CB707105)~~ |
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| 摘 要： | 目的 基于6S辐射传输模型,对连续6个时相的 MODIS影像进行逐像元大气校正获取地表反射率,以此实现 MODIS NDVI的时相归一化。归一化后,地物 NDVI的时相趋势与校正前相比差异显著,能更加准确地描述地物随时间变化的规律,在浓密植被区域表现更为明显。开展对 NDVI时相归一化的研究,对全球变化、作物物候监测等遥感时序分析相关应用具有着重要的意义和实用价值。
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| 关 键 词： | 中等分辨率成像光谱仪 归一化植被指数 多时相 归一化 6S |
| 收稿时间： | 2013-03-09 |
| 修稿时间： | 2014-03-05 |
Normalization of Multi-temporal MODIS NDVI Based on6SRadiative Transfer Model |
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| GAN Wenxia, SHEN Huanfeng, ZHANG Liangpei, GONG Wei. Normalization of Multi-temporal MODIS NDVI Based on6SRadiative Transfer Model[J]. Geomatics and Information Science of Wuhan University, 2014, 39(3): 300-304. DOI: 10.13203/j.whugis20120731 |
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| Authors: | GAN Wenxia SHEN Huanfeng ZHANG Liangpei GONG Wei |
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| Affiliation: | 1State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China;2School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China |
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| Abstract: | Objective In this research,six MODIS L1Bdata of four consecutive days were normalized through pix-el-by-pixel atmospheric correction based on the 6S(second simulation of the satellite signal in the solarspectrum)radiative transfer model.Results show that the trend indicated by NDVI after normaliza-tion was different,and has better agreement with the phonological law,especially for pixels withdense vegetation. |
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| Keywords: | MODIS NDVI multi-temporal normalization 6S |
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