VanderSat is making use of another approach. We use our Vegetation Optical Depth product from microwave satellites to get a clear understanding of the health of the crops. Simply put, it's the amount of water that is stored in the crops. VanderSat has developed a new parameter that is highly suitable as an alternative to NDVI with the big advantage that clouds and darkness are not a problem to obtain VanderSat VOD. With daily observations, farmers can make more informed decisions. By combining microwave data obtained from different satellites VanderSat is revealing a revolutionary data set that can be used to retrieve crucial information about the vulnerability of our water and food resources at field level.