GPM Image of Lan (IMAGE) NASA/Goddard Space Flight Center Caption On Oct. 22, the GPM core satellite analyzed Typhoon Lan's rainfall and cloud heights. GPM's radar measured rain falling at the extreme rate of greater than 297 mm (11.7 inches) per hour in the northwestern side of the typhoon's eye wall. Credit Credits: NASA/JAXA 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.