Faisal B Ashraf Contact ashraffb@ornl.gov | 865.341.3131 All Publications Nordic socio-recreational ecosystem services in a hydropeaked river Estimating the economic value of hydropeaking externalities in regulated rivers Key Links Google Scholar LinkedIn Organizations Energy Science and Technology Directorate Water Power Program Biological and Environmental Systems Science Directorate Environmental Sciences Division Biodiversity and Sustainable Systems Section Water Resource Science and Engineering Group