December 23, 2004

Nonparametric detection of cloudy pixels in NVHRR NDVI data

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Abstract

Two nonparametric detectors, based on the Sign Test and the Wilcoxon Signed Rank Test, were applied to 10-day composites of Normalized Difference Vegetation Index (NDVI) data to detect cloud contaminated pixels. The performances of these detectors were found to be no better than a detector based on randomly chosen thresholds. The detector thresholds need to account for the climatologically induced biases in the data for each region and time period every year.

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Anantharaj et al. (Thu,) studied this question.

synapsesocial.com/papers/6a10965a8090e499da61643b https://doi.org/https://doi.org/10.1109/igarss.2004.1368588

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