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LTER-LIFE / VeluweProtoDT

Veluwe proto-DT: a digital mini twin of tree phenology and climate scenarios
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Explore how we can implement NDVI as a proto-DT extension #50

Open StefanVriend opened 9 months ago

StefanVriend commented 9 months ago

We will add a forecasting component to the proto-DT (#41) to demonstrate the flexibility of adapting a workflow within the VRE. Besides climate scenarios (#42), we try to get access to NDVI data from WUR's AgroDataCube.

StefanVriend commented 9 months ago

AgroDataCube v2.1 has a clearly documented API, which works similar to the APIs of KNMI and Dataverse.

They have NDVI data since 2015 for a series of dates per year. These dates are not consistent between years and it is currently unclear how to list all available dates in R. For now, we extracted dates using the map on this website: https://www.groenmonitor.nl/groenindex.

StefanVriend commented 9 months ago

An alternative source is the European Copernicus. Their Sentinel-2 L2A satellite provides the bands needed to determine NDVI.

There is an R package {openeo} to access these data, but there also exists an REST API: OData.