Although composite data present lower atmospheric contamination than raw time series,MODIS NDVI products are still contaminated by clouds,especially when cloud cover lasts longer than the composite period.e.g.,in the rainy season.The long-time cloud cover will weaken the application of MODIS NDVI time series data.To remove the effect of these clouds from NDVI data and reconstruct high-quality NDVI data,the authors propose three algorithms for cloud removal,namely SPLINE function,HANTS and Savizky-Golay.The ...
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