1996 Volume 1996 Issue 30 Pages 62-80
“Assessing and improving performance of irrigated agriculture” is one of five major research programs of the International Irrigation Management Institute (IIMI). It aims to develop internationally agreed assessment indicators for the comparative study of performance of irrigated agriculture in developing countries. This is a case study of the Muda Irrigation Project focusing on the effective rainfall.
A simple method to monitor and assess actual effective rainfall based on field water depth was proposed using commonly obtainable data sets in developing countries and field-tested it using monitored data in the Muda Project in comparison with other methods broadly applied over the world.
It was certified that the effective rainfall estimated by the proposed method reflects not only characters of rainfall distribution but also the quality of irrigation system management.