Citizen science in hydrology and water resources: opportunities for knowledge generation, ecosystem service management, and sustainable development

1 Department of Civil and Environmental Engineering, Imperial College London, London, UK 2 Grantham Institute for Climate Change and the Environment, Imperial College London, London, UK 3 Departamento de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Quito, Ecuador 4 Department of Civil Engineering, Universiti Putra Malaysia, Serdang, Malaysia 5 Consortium for the Sustainable Development of the Andean Ecoregion (CONDESAN), Lima, Peru 6 School of Civil and Water Resources Engineering, Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia 7 Institute of Development Policy and Management, University of Antwerp, Antwerp, Belgium 8 Society of Hydrologists and Meteorologists (SOHAM Nepal), Kathmandu, Nepal 9 School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK 10 Public Administration and Policy Group, Wageningen University, Wageningen, Netherlands 11 Mountain Societies Research Institute, University of Central Asia, Bishkek, Kyrgyzstan 12 Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA