Rain Gauges Set Up in Smoky Mountains (IMAGE) NASA/Goddard Space Flight Center Caption Rain gauges and other rain monitoring equipment are set up throughout the Smoky Mountains (part of the Appalachians) to capture rainfall for the GPM ground validation taking place in North Carolina May 1 to June 15, 2014. Credit Image Credit: Duke University 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.