An adequate band positioning to enhance NDVI contrasts among green vegetation, senescent biomass, and tropical soils

被引：24

作者：

Galvao, LS ^{[1
]}

Vitorello, I ^{[1
]}

Pizarro, MA ^{[1
]}

机构：

[1] Inst Nacl Pesquisas Espaciais, BR-12201970 Sao Jose Dos Campos, SP, Brazil

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 2000年 / 21卷 / 09期

关键词：

D O I：

10.1080/014311600209878

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Airborne Visible/InfraRed Imaging Spectrometer (AVIRIS) imagery was used in a quantitative evaluation of the impact of band positioning and bandwidth on values of Normalized Difference Vegetation Index (NDVI) for green vegetation (GV), senescent biomass (SB), and soils (S). The results show that the band positioning needed to maximize the NDVI contrast between GV and SE or S should include a narrow or broad red band centred around the chlorophyll absorption band, between 660 and 680 nm, and a narrow near-infrared (NIR) band placed at the shortest wavelength in the 750-1100 nm range. NDVI differences between extreme NIR band positioning can reach values of 0.35 in areas of accentuated phenological contrast. Of the broad-band sensors analysed in this study, Landsat-5 Thematic Mapper (TM) and NOAA-11 Advanced Very High Resolution Radiometer (AVHRR) presented, respectively, the most favourable and unfavourable positioning.

引用

页码：1953 / 1960

页数：8

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