Helen Dahlke, University of California - Davis (image) University of California - Davis Share Print E-Mail Caption UC Davis hydrologist Helen Dahlke stands in an almond orchard being flooding during winter rains as part of an experiment regarding the potential of recharging groundwater by flooding fields in the off season. Credit Joe Proudman/UC Davis Usage Restrictions Provide credit. Share Print E-Mail 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.