Bernard Jackson Cosby Jr¹, Bridget Emmett², Brian Reynolds³, James W Kirchner⁴, Colin Neal⁵, Chris Evans⁶, David Norris¹ and Three Generations of the Plynlimon Research Team, (1)Centre for Ecology and Hydrology, Bangor, United Kingdom, (2)NERC center for Ecology and Hydrology, Oxfordshire, United Kingdom, (3)Centre for Ecology and Hydrology (retired), Bangor, United Kingdom, (4)ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland, (5)Centre for Ecology and Hydrology (retired), Wallingford, United Kingdom, (6)NERC center for Ecology and Hydrology, Bangor, United Kingdom