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9. ACKNOWLEDGEMENTS 
This work has been carried out as a RSAM project of ISRO. 
Authors are extremely thankful to Dr. A.K.S. Gopalan, 
Director, Space Applications Center and Shri J.S. Parihar, 
Mission Director, RSAM for their keen interest in this study. 
We are thankful to Dr N. Kundu, scientist- IWM&ED, Calcutta 
for ground truth data collection support. Technical guidance 
provided by Dr M Chakraborty, Head, TSDD, SAC, is 
thankfully acknowledged. 
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