Atmospheric Rivers (IMAGE) Naval Research Laboratory Caption Screen capture of the world's atmospheric rivers, which account for most of the horizontal moisture transport outside of the tropics. NRL meteorologists plan to participate in a cooperative study in 2020 in the Eastern Pacific to improve their ability to forecast the rivers. Credit Image courtesy of the Cooperative Institute for Meteorological Satellite Studies/University of Wisconsin, Madison 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.