Countries around the globe are improving their means for managing water resources, including irrigation water. These increased levels of management require increased accuracy in the quantification of various components of the hydrologic cycle, including evapotranspiration and water consumption by irrigated crops. Evapotranspiration is highly variable over time and with the type of vegetation. Water shortages reduce evapotranspiration rates. It is critical for water managers and planners and hydrologists to determine the spatial and temporal variation of ET over large land areas. This task is greatly simplified using the information that is available from remotely sensed imagery. Much progress has been made in using satellite images to predict ET. Accuracy of ET determination using remotely sensed data is sufficient now to apply the ET “maps” for purposes of planning and managing water use and for evaluating irrigation project performance and crop yields.

The main objective of the Workshop was to illustrate the benefits of quantifying and managing ET in irrigated agriculture, the current techniques to determine ET from remote sensing, applications of remote sensing for irrigated agriculture, and extended applications for prediction of soil moisture, crop yield and irrigation uniformity and scarcity. The goal of the Workshop was to bring together international experts, professionals, practitioners and decision-makers to illustrate the technology and experiences of implementing remote sensing in irrigated agriculture.

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