利用MODIS BRDF估算中国东北森林背景反射率——以大兴安岭加格达奇地区为例

被引：3

作者：

顾春明 ^{[1
,2
]}

刘振波 ^{[1
,2
]}

葛云健 ^{[1
,2
]}

机构：

[1] 南京信息工程大学气象灾害省部共建教育部重点实验室

[2] 南京信息工程大学遥感学院

来源：

遥感学报 | 2014年 / 18卷 / 03期

关键词：

MODIS BRDF; 东北森林; 背景反射率; 4-scale模型;

D O I：

暂无

中图分类号：

S718.5 [森林生态学];

学科分类号：

071012 ; 0713 ;

摘要：

基于MODIS二向反射分布函数(BRDF)模型参数产品数据,利用4-scale模型建立查找表,以中国东北大兴安岭加格达奇地区为研究区,反演森林背景反射率,并分析不同森林类型二向反射与背景反射率特性及其季节变化。研究结果表明:(1)研究区针叶林和混交林二向反射特征较为相似,夏季阔叶林在红光波段的二向反射率值均低于针叶林和混交林,而在近红外波段则相反;不同森林类型二向反射率均存在明显的季节变化,其中阔叶林二向反射率季节变化最为明显;(2)研究区夏季森林背景反射率在红光波段较低,均在0.1以下,近红外波段背景反射率普遍高于0.3,且空间差异较大;(3)不同森林类型的背景反射率季节变化趋势大致相同,但变化幅度存在差异:阔叶林的背景反射率值季节差异最大,尤其在近红外波段。

引用

页码：696 / 714

页数：19

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