Rainwater harvesting/Research on rainwater harvesting

There is opportunity, room and history for research on rainwater harvesting for both academic institutions and citizen-science forms of studies and activism.

The North Carolina Water Resources Research Institute compiles a list of studies on the effect of roof surfaces on the quality of rainwater in Rainwater Harvesting—A Comprehensive Review of Literature.

Effect of Inlet/Outlet Configuration on Water Quality in a Rainwater Harvesting Tank
Dr. Mooyoung Han from Seoul University has done research on the effect of inlet/outlet location on water quality for rainwater.

Optimal rainwater tank design for control of particulate contaminants
Here is another paper from Dr. Mooyoung Han from Seoul University on improving the design of tanks and cistern for decreased particulate contamination at end source.