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Where can I find canopy reflectance data for crops (soybean in particular) for different dates across the growing season

Earth Science Asked by ss1729 on August 20, 2020

I have been trying to find literature values for reflectance of soybean for different dates along the growing season (I am specifically interested in 30, 60 and ~120 days after planting – so the V3/V4 stage, R3/R4 stage and R8 stage) but all the spectral response graphs (there’s only graphs – I haven’t seen a table) that show up in my literature search have "Average Spectral Response" and no date indicated. There is a 1984 dataset on the NASA website which has measurement dates mentioned – but no mention of planting date, and the reflectance data doesn’t mention the measurement dates either.

Is there a paper or some other resource where I could find such data? I should add that this is for remote-sensing work, hence why I want data for different dates – I want the presence of soil to be accounted for in the reflectances reported.

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