Anne: This year Anne was pleased to find a way to merge her interests in urban hydrology and using water stable isotopes as tools in hydrology. She and her colleagues published a paper that shows that stormwater detention ponds produce distinctive isotopic signatures that can be used to trace the influence of stormwater on the receiving urban streams. Using a two end-member mixing model, Anne’s team showed that a stormwater pond in suburban Charlotte, North Carolina had an outsized contribution to streamflow during hydrograph recession periods, thanks to the temporary storage and slow release of water from the pond. For more on this project, you can read the paper or take a look at slides from the talk Anne gave at the Geological Society of America meeting in November.