How Universal Is the Relationship between Remotely Sensed Vegetation Indices and Crop Leaf Area Index? A Global Assessment.

Although sample sizes are much smaller for larger temporal mismatch, there is still an increasing trend of the residuals starting from 4-day temporal mismatch.

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In many crops (i.e., overall, row crop, maize, soybean, pasture), there is a decreasing trend in the MAE from radiance, TOA reflectance to surface reflectance, but the differences are not statistically significant (except for maize).

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