Further, the
emerging concern over climate and land use change
impact on agriculture needs accurate monitoring of
crop yield production. Precise use of fresh water
resources for irrigation is required for implementation
of sustainable water management policies and to
monitor high yields in a changing climate and rising
water demands. Soil moisture, water content in the
root zone, and vegetation indices are critical
parameters for crop yield forecasting, irrigation
management, and issuing early warning of droughts.