Chintapalli, S.M.
distributaries with a lag of 20-25 days the effective water shortage is for 6-11 days during grain formation stage.
5 CONCLUSIONS
Emerging technologies like Satellite remote sensing can be successfully utilised for deriving the spatial and temporal
agricultural information in irrigated command areas. Such information which is generally not collected and maintained in
any organised fashion in the conventional mechanisms is very useful for developing performance indicators of irrigation
system. Indicators revealing the spatial and temporal trends in agricultural situation in the irrigation system command area
can be derived exclusively from remote sensing data analysis. Organising the satellite derived spatial data and ground
observations /measurements and non-spatial attribute data, in a GIS environment, would be highly desirable to facilitate
analysis of irrigation performance and also for effective use of irrigation management models towards achieving the
sustainable management of irrigation systems.
6 ACKNOWLEDGMENTS
Greatful thanks are due to Dr. D. P. Rao, Director, Shri S. K. Bhan, Deputy Director (Applications), Shri A. K. Chakraborti,
Group Head, Water Resources Group, National Remote Sensing Agency, Hyderabad, India, for according permission and
for providing required facilities for successful completion of this study. Funding support forthe study in Bhakra irrigation
system was provided by International Water Management Institute (IWMI), Sri Lanka, and special thanks are due to Dr.
David Seckler, Dr. Chris Perry and Dr. R Sakthivadivel of IWMI. Valuable support and cooperation was received from
Irrigation Departments of Government of Haryana state and Government of Karnataka state. Without the help and
cooperation from colleagues in Water Resources Group and other supporting divisions this study could not have been
successfully completed.
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