IMERG Rainfall Totals Over Sri Lanka (IMAGE) NASA/Goddard Space Flight Center Caption NASA's IMERG looked at rainfall from May 23 to early May 26, 2017 and estimated over 434 mm (17 inches) or rain had fallen. Credit Credits: NASA/JAXA, Hal Pierce Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.