Elbe River in Germany (IMAGE) Helmholtz Association Caption Photo of the mouth of the river Saale into the Elbe. The study analyzed data from the four largest rivers in northern Germany - the Elbe, Weser, Aller and Ems - were analyzed over ten years. Credit André Künzelmann, UFZ 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.