Gravity Recovery and Climate Experiment (GRACE) mission, launched in 2002, uses two spacecraft to map variations in the Earth’s gravity field. The gravitational research is, in part, collecting relevant agricultural data on factors such as groundwater availability and stress as they relate to global agricultural production areas. Maps developed using the GRACE data are able to identify the difference between climate-related drought conditions and the depletion of aquifers through groundwater extraction that exceeds recharge.
However, currently, this information is typically only available in specialized scientific journals. By making this information more available to farmers, the IoT, drawing on GRACE as a sensor, could help farmers make more efficient and effective use of water resources.