A Review of Irrigation Information Retrievals from Space and Their Utility for Users

Irrigation represents one of the most impactful human interventions in terrestrial water cycle. Knowing distribution and extent irrigated areas as well amount used for irrigation plays a central role modeling requirements quantifying impact on regional climate, river discharge, groundwater depletion. Obtaining high-quality global information about is challenging, especially terms quantification actually irrigation. Here, we review existing Earth observation datasets, models, algorithms mapping from field to scale. The current capacities are confronted with results survey user satellite-observed agricultural resources’ management. Based this information, identify shortcomings monitoring capabilities space phrase guidelines potential future satellite missions strategies.