NOISE ESTIMATION IN NOAA AVHRR MAXIMUM-VALUE COMPOSITE NDVI IMAGES

被引：23

作者：

EKLUNDH, LR

机构：

[1] Department of Physical Geography, Lund University, Lund, S-221 00

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 1995年 / 16卷 / 15期

关键词：

D O I：

10.1080/01431169508954601

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Noise has been estimated in Advanced Very High Resolution Radiometer (AVHRR) maximum-value composite Normalized Difference Vegetation Index (NDVI) products using a geostatistical method calculating the noise as the square root of the nugget variance in a semi-variogram. High noise values (20-50 per cent of the standard deviation) were found in individual scenes, whereas values close to zero were found in a nine-year average image. The higher levels of noise in individual images were present in humid areas particularly during the wet season, indicating that atmospheric effects and cloud contamination may be among the main contributing factors.

引用

页码：2955 / 2962

页数：8

共 15 条

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