| 基于MODIS大气产品的天宫一号高光谱成像仪数据大气校正研究 |
| |
| 引用本文： | 胡勇,刘良云,张九星,李绪志.基于MODIS大气产品的天宫一号高光谱成像仪数据大气校正研究[J].遥感技术与应用,2014,29(6):1060-1066. |
| |
| 作者姓名： | 胡勇 刘良云 张九星 李绪志 |
| |
| 作者单位： | (1.中国科学院遥感与数字地球研究所数字地球重点实验室,北京100094;
2.中国科学院大学,北京100049;3.中国科学院空间应用工程与技术中心,北京100094) |
| |
| 基金项目： | 中国科学院新型对地观测系统科技创新交叉合作团队项目和载人航天工程天宫一号民用试应用项目资助。 |
| |
| 摘 要： | 天宫一号(TG-1)搭载的高光谱成像仪获取了大量的高光谱数据,可用于国土资源、农林业和油气矿产等领域的研究。但由于遥感成像时会受到大气的干扰,因此需要首先进行大气校正,消除大气的影响,才能进行遥感定量分析与应用。利用准同步的中分辨率成像光谱仪MODIS(Moderate Resolution Imaging Spectroradiometer)大气参数产品,结合6S辐射传输模型对天宫一号高光谱成像仪数据进行大气校正,并利用地面测量光谱和同步MODIS反射率数据对结果进行了验证。结果表明:经过大气校正后,天宫一号高光谱成像仪数据和地面测量光谱一致性较好,所有样点的相关系数都大于0.97,最大均方根误差为0.088。和MODIS反射相比,各波段回归直线的斜率接近1,且R2都大于0.8。
|
| 关 键 词： | 天宫一号 高光谱成像仪 大气校正 6S |
| 收稿时间： | 2012-11-27 |
A TG-1 Hyper-spectral Imagery Atmospheric Correction based on MODIS Atmosphere Products |
| |
| Hu Yong,Liu Liangyun,Zhang Jiuxing,Li Xuzhi.A TG-1 Hyper-spectral Imagery Atmospheric Correction based on MODIS Atmosphere Products[J].Remote Sensing Technology and Application,2014,29(6):1060-1066. |
| |
| Authors: | Hu Yong Liu Liangyun Zhang Jiuxing Li Xuzhi |
| |
| Affiliation: | (1.Key Laboratory of Digital Earth Science,Institute of Remote Sensing and Digital Earth,;
Chinese Academy of Sciences,Beijing 100094,China;;
2.University of Chinese Academy of Sciences,Beijing 100049,China;;
3.Technology and Engineering Center for Space Utilization,;
Chinese Academy of Sciences,Beijing 100094,China) |
| |
| Abstract: | TG-1 has accumulated large number of hyper-spectral data,which could be widely use for a variety of scientific research,including land resources,agroforestry and Oil-gas resources,etc.However,a very large percentage of those imageries are severely contaminated by atmosphere.So the atmospheric correction procedure which could remove the atmosphere effects is a critical preprocessing step required for quantitative remote sensing applications.In this study,we developed a atmospheric correction procedure based on Moderate Resolution Imaging Spectrometer(MODIS)atmospheric characterization products and the Second Simulation of a Satellite Signal in the Solar Spectrum(6S)radiative transfered code for TG\|1 hyper\|spectral imagery.Then the atmospheric correction precision was assessed by using ground\|measured reflectance and MODIS reflectance.The result showed that the surface reflectance retrieved from TG\|1 hyper\|spectral is consistent with the ground measurements,with the R is bigger than 0.97,and a mean root mean square error(RMSE)is less than 0.088.And the comparison result for TG\|1 hyper-spectral and MODIS showed that the regression coefficients is closed to 1,with the R2 bigger than 0.8. |
| |
| Keywords: | TG-1 Hyper-spectral imager Atmospheric correction 6S |
|
| 点击此处可从《遥感技术与应用》浏览原始摘要信息 |
|
点击此处可从《遥感技术与应用》下载全文 |
|
