Spatial variations of spectral indexes in burnt areas of different South-America regions

被引：0

作者：

Opazo Saldivia, S. ^{[1
]}

Rodriguez-Verdu, F. ^{[2
]}

机构：

[1] Univ Magallanes, Escuela Ciencia Agropecuaria, Avda Bulnes, Punta Arenas 01855, Chile

[2] Univ Alcala, Dept Geog, Madrid 28002, Spain

来源：

CUADERNOS DE INVESTIGACION GEOGRAFICA | 2007年 / 33卷

关键词：

spectral response variation; burnt land areas; MODIS; NBR and BAI Indexes; South America;

D O I：

暂无

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The present work is directed to the analysis of the variation of the spectral response shown in burnt areas of different South-America regions. The obtaining of the spectral information has been done using MODIS images (MCD43), within burnt area perimeters previously extracted by means of visual interpretation of higher spatial resolution images (Landsat and CBERS). The study has used two burnt area indices (NBR and BAI) and auxiliary information of vegetation and climate. Results shown that vegetation variables explain in a better way the indices variations in the different burnt areas. In general, it was observed that groups within more forested areas shown the highest values in the burnt area indices.

引用

页码：39 / 57

页数：19

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