Mr Cullmann has joined the World Meteorological Organization (WMO) in 2015 as the Director of the Climate and Water Department. From 1 January 2020, he is the Director for Water and Cryosphere. He holds a Master in Hydrology, a PhD in Flood Forecasting as well as a Habilitation in Hydrology. Mr Cullmann was Director of the IHP/HWRP division (science and international cooperation) of the German Federal Institute of Hydrology from 2007 to 2015. From 2012 to 2014, he was President of the Intergovernmental Council of UNESCO’s water programme. Mr Cullmann also coordinated German support for UNEP’s water quality related activities, and he is familiar with data sharing arrangements in support of creating political trust in disputed situations. He was the Hydrological Advisor of German Permanent Representatives to WMO from 2007 to 2015.

Harry leads the Water Resources Systems Group at UKCEH. He is a hydrologist specialising in the measurement, management and assessment of hydrometric data. He has extensive experience of working in the UK and internationally on projects related to the collection and management of hydrological data and information. Harry is a member of the World Meteorological Organization's (WMO) Hydrological Coordination Panel and Chairs the Global Hydrometry Support Facility (HydroHub) Advisory Council.

Dr. Elizabeth Jamieson is a Senior Engineer for Canada’s National Hydrological Services, within Environment and Climate Change Canada (ECCC). Elizabeth is also an adjunct professor in the Department of Civil Engineering at the University of Ottawa. Elizabeth’s current role with ECCC is the national lead on hydrometric monitoring technology within the Water Survey of Canada (WSC), which is a program dedicated to collecting real-time and historical water level and flow data from a network of over 2000 hydrometric stations across Canada. Elizabeth has also been involved in WMO projects since 2012, most recently as Chair of Project X (a group of experts dedicated to the Assessment of the Performance of Flow Measurement Instruments and Techniques).

Alice Soares started her career in meteorology and oceanography in 1995 at the Portuguese Meteorological Service, dealing with weather and marine data-processing, forecasting and services. At the same time, Alice was awarded a visiting Professorship at the Lusophone University in Lisbon, to develop the academic programs in marine meteorology and related fields. Alice supervised numerous graduate students and taught courses in air-sea interaction, atmospheric thermodynamics, dynamic and synoptic meteorology, and atmospheric and oceanographic boundary layers.

In 2006, Alice was appointed Scientific Officer at the Ocean Affairs Division of the World Meteorological Organization (WMO); and in 2010, she was awarded the permanent position as Scientific Officer at the Data-processing and Forecasting System Division of WMO. Since 2018, Alice serves as Senior Hydromet Advisor with the World Bank, and provides expert advice to WMO, the French Development Agency (AFD), and the Indian Ocean Commission (IOC). Alice has co-authored numerous research papers, books, and regulatory and technical publications on meteorology (weather and climate) and oceanography.

Kevin Oberg is an expert in hydroacoustics, the application of acoustic instruments and techniques for measurements of water velocity, discharge, sediment transport, and other parameters. Until 2018 he served as the National Coordinator for Hydroacoustics in the U.S. Geological Survey, leading a team that developed and supported hdyroacoustics within the USGS and internationally. Kevin also led the Surface Velocity Work Group, a group that is developing and standardizing surface-velocity measurement methods for use in USGS data collection programs. Since his retirement from the USGS in 2018, he has continued to serve as Scientist Emeritus and as a private consultant.

Nick is a Senior Hydrometric Scientist working at UKCEH. Nick started working in hydrometry in 1987, and led on river discharge monitoring techniques at the UK Environment Agency for over a decade, where his role included instrumentation testing and validation, development of standards, training delivery, purchasing and liaison with manufacturers.
Nick moved to UKCEH in the summer of 2020 to lead on innovation in hydrometric tools and techniques.
Nick’s greatest passion is finding new, better ways to do things, and in sharing the learning and excitement that comes with this.

Flavia Tauro is Associate Professor of Hydrology at the University of Tuscia, Viterbo, Italy. She received her B.Sc. and M.Sc. degrees in Environmental Engineering from “Sapienza” University of Rome, Italy, in 2007 and 2009, respectively, and her M. Eng. degree in Civil and Environmental Engineering from the Massachusetts Institute of Technology, Cambridge, in 2009. In 2014 she graduated with a Ph.D. in Hydrology from “Sapienza” University of Rome and a Ph.D. in Mechanical Engineering from New York University Tandon School of Engineering. She was the recipient of the 2013 American Geophysical Union Horton (Hydrology) Award; the 2014 Gruppo Italiano di Idraulica (Gii) Award for Doctoral Thesis in Water Engineering; and the 2019 International Union of Geodesy and Geophysics (IUGG) Early Career Scientist Award.

Flavia’s research interests entail the design and creation of innovative systems to sense the hydrological cycle. She was among the first researchers to integrate image analysis techniques with unmanned aerial systems technology and furthered a range of fully noninvasive measurement systems for surface flow observations. Since 2010, she has coauthored more than 40 papers in the top journals in Hydrology.

Since 2015, she is serving as Chair of the Measurements and Observations in the XXI Century (MOXXI) working group of the International Association of Hydrological Sciences.

Mark Randall has over 15 years' experience in managing and maintaining an extensive network of hydrometric monitoring stations for the Queensland government (Australia), developing key skills in the collection, validation and analysis of hydrometric data. Since 2010, Mark has played a key role in developing and managing Australian national industry guidelines as a member of the Australian Bureau of Meteorology’s Water Monitoring Standards Technical Committee (WaMSteC). These guidelines set data collection standards of operation for hydrometric monitoring across state government and private monitoring organisations. In 2016, Mark began applying and validating image velocimetry techniques for calculating stream velocity and discharge using quadcopter drones and fixed cameras. In 2021, Mark led the development and publication of the first Australian national guideline document governing the application of these methods and has provided training and guidance to monitoring agencies around the world.

Sumit Sen is an Associate Professor in the Department of Hydrology and also serves as Head in the Centre for Excellence in Disaster Mitigation and Management at the Indian Institute of Technology Roorkee, India. His research activities involve field and modeling experiments to investigate water movement through various components of the watershed and to understand runoff generation mechanisms at various scale. He has also been conducting research on understanding springs as part of the larger Himalayan hydrology and water security. During the WMO HydroHub Second Innovation Call (November 2020 to April 2021) he worked with Riverlabs UK and University of Birmingham to operationalize LIDAR based non-contact water level sensors within the Central Water Commission in India.

Salvador Peña Haro holds a PhD from the Technical University of Valencia, Spain, on the subject of Hydraulic and Environmental Engineering during his studies he developed hydro-economic models. He worked at the ETH Zürich, Switzerland, in the Institute of Environmental Engineering (IfU) as a Post-doctoral researcher on integrated modeling. He has worked for more than 20 years on different topics related to water monitoring, modeling and management in different countries. Currently he is the Chief Technology Officer at the start-up photrack Ltd where they are developing new image-based technologies for environmental monitoring.

William Castaings is the CTO of TENEVIA, a French SME developing innovative solutions for measuring, monitoring and forecasting hydrosystems. Before joining TENEVIA, he carried out academic research activities in various organizations and received a PHD in applied mathematics from Grenoble-Alpes University. His main professional interest are river monitoring, hydraulic modelling and hydrological forecasting, computer vision and image processing, sensitivity and uncertainty analysis, data assimilation and artificial intelligence.

Jonny Higham is a Lecturer in Contemporary and Dynamic Processes at the University of Liverpool, he is also co-founder of FlowOnTheGo. Jonny is an engineer by training, a frustrated wannabe mathematician, and a newly “adopted” geographer. He previously was an Oak Ridge Research Fellow at for the US Department of Energy. Jonny’s research is broadly related to environmental fluid mechanics and measuring real-world flows. He is currently applying modal decompositions and optical flow tracking velocimetry to anything that moves. His University of Liverpool spin-out aims to bring river tracking to the masses using his smart phone and web browser apps.

Guillaume is CEO at vorteX.io, a french young startup that offers a real-time hydrological monitoring and notification service based on a in-situ constellation of smart and innovative space-based compact altimeters: the micro-stations. The goal of vorteX.io is to provide anytime/anywhere hydro-meteorological parameters thanks to its unique combination of an innovative sensor and a disruptive distribution model.

Mariano Re is Civil Engineer and M.S. in Environmental Sciences (University of Buenos Aires, Argentina). Hydrological Advisor for Argentina and member of the Study Group on Integrated Urban Services - SG-URB at the World Meteorological Organization (WMO). Researcher at Computational Hydraulics Program (PHC) of the Hydraulics Laboratory of the National Institute for Water (INA), Argentina. Teaching Assistant / Chief of Practical Applications at Computation Department of the School of Engineering at the University of Buenos Aires (FIUBA), Argentina. Expertise in the area of numerical modelling for the engineering approach to hydro-environmental problems. Two decades dedicated to the application of numerical methods in the simulation of hydrodynamical, water quality and sediment transport problems, water resources management, assessment of climate change impacts, and flood risk management.

Christophe has 28 years of experience in hydrology and management of related resources, demands, territories, risks and interfaces across a variety of hydroclimate and geographic settings. He holds a degree of “ingénieur agronome” and a PhD and habilitation in hydrology. He has added to his academic track an extensive international experience including 1.5 years in Iceland, 3.5 years in Tunisia, and research/capacity development projects in many regions throughout the world in the frame of bilateral, European and World Bank projects. Since 2011, he is the Secretary General of the IAHS – the International Association of Hydrological Sciences – facilitating worldwide scientific cooperation, knowledge exchange and outreach, and interacting with various global and UN programs and policy processes.

Jérôme Le Coz is a Scientist in the River Hydraulics team of the INRAE RiverLy research unit in Lyon, France. He has developed research and tools for the measurement and modelling of liquid and solid discharges in rivers, and for the quantification of associated uncertainties. He co-develops and distributes the free software BaRatin (rating curve estimation) and Fudaa-LSPIV (video-based streamgauging). He co-manages the French-speaking professional network Groupe Doppler Hydrométrie (435+ subscribers). He is a member of the AFNOR X10C national standardisation committee in Hydrometry and of WMO ProjectX. He chairs the international committee for the organisation of IAHR/WMO/IAHS hydrometry courses.

Mirjami Kuoppala works as a project manager at Finnish Environment Institute (SYKE). She has worked around 20 years on different projects related to software development and quality assurance concentrating now on environmental topics and data science. During her career she has gained working experience from both private and public sectors either in Finland or abroad.

Frank Annor is the CEO of TAHMO, a lecturer at the Kwame Nkrumah University of Science and Technology in Ghana, and a postdoctoral researcher at the Delft University of Technology in the Netherlands. His research work includes hydro-meteorological modeling and institutional arrangements for Water governance covering Agriculture and Early Warning Systems for droughts and Floods. He has over 18 years of work experience on resilience development in the water sector in Africa. Frank has worked in over 23 Countries in Sub-Saharan Africa where he leads the TAHMO initiative. He is currently working on TWIGA which is a European Union Horizon 2020 Research and Innovation project where they are pushing further recent advances in sensor and communication technology to provide cheaper and more robust in situ measurements covering a wider area at a higher resolution in sub-Saharan Africa. In the TWIGA project, Frank works with tech-hubs in Europe and Africa to feed the creation and growth of European and African start-ups that develop sensors and geo-services, delivering complete value chains from sensor to customer-ready information delivery.

Hessel Winsemius is an expert in large-scale hydrology, climate change and hydrological modelling. He holds a Cum Laude PhD on the use of large-scale satellite observations, in particular of the gravity field and evaporation processes, as complementary data for the construction and calibration of hydrological models in the Zambezi basin. He is senior hydrologist at Deltares where Hessel has acquired specialist knowledge on hydrological and hydraulic modelling, monitoring, global hydrology, model calibration, prediction of effects of climate change and land cover change, operational forecasting, use of large and open datasets, and uncertainty estimation. From 2018-2020, he was Associate Professor in Water Resources Management at Delft University of Technology, where he currently is guest researcher. Since 2020, he is also an associate with the Trans-African Hydro-Meteorological Observatory (TAHMO). Since 2021, Hessel is CEO of Rainbow Sensing.

At TU Delft, with Rainbow Sensing and TAHMO, Hessel has initiated and led PhD and student projects related to the improvement of hydrometric monitoring in Africa. He regularly supervises MSc and BSc students. He is co-lead of the ZAMSECUR NWO-WOTRO program focusing on improving the hydrological understanding of the Zambezi through new innovative monitoring and modelling approaches. He is a frequent author of scientific publications at all his affiliations.

Recent work with Rainbow Sensing includes contributions to the Tanzania Urban Resilience Program, ZAMSECUR for improved observations and understanding of hydrology in the Zambezi basin, the WMO HydroHub project OpenRiverCam, 3DStreetView, and ODMax, a software development project for the Australian National University to use 360-degree videos for photogrammetry purposes. He is and has been active in international projects in Southern Africa, Asia, United States and the Caribbean.

Muthiah Perumal who served the Department of Hydrology, Indian Institute of Technology (IIT) Roorkee, India as faculty till the time he retired in June 2020 has expertise in the areas of flood hydrology and hydrometry. He also served as the Head of the Department of Hydrology in the period 2012 to 2014. He obtained his B.E. degree in Civil Engineering in 1976 from the Coimbatore Institute of Technology, Coimbatore, M.Tech with specialization in Hydraulics and Water Resources Engineering from IIT Kanpur in 1978, M.Sc degree with specialization in Engineering Hydrology from the University College Galway, Ireland in 1981, and Ph.D degree in 1996 from the then University of Roorkee (now IITRoorkee). He was awarded the prestigious Lever-Hulme Post-Doctoral Fellowship to work with Professor Peter Enda O’Connell, University of Newcastle, UK during 1997-1998. Apart from contributing many papers to Journals, and national and international conferences, he has contributed to the edited books on specific topics, the notable one among them is a chapter on “Reservoir and Channel Routing” along with Professor Roland Price of IHE, The Netherlands in the Revised edition of Applied Hydrology (edited by Ven Te Chow). Recognizing his research contribution on the subject of flood hydrology, he was bestowed with Professor S.N. Gupta Memorial award for the year 2019 by the Indian Society of Hydraulics, Pune, India. He visits the Research Institute for Hydrogeological Protection (IRPI), Perugia, Italy for collaborative research studies in the area of flood hydrology and hydrometry.

Pete Marchetto is the Research Engineer and Instrumentation Scientist on staff at FieldKit and Conservify, where he is responsible for calibration, sensor selection, and evaluation, among other system testing and design tasks. Previously, he was an assistant professor at the University of Minnesota’s Bioproducts and Biosystems Engineering department specializing in novel biological and environmental instrumentation and equipment design for a variety of fields, from animal behavior to field hydrology to agronomy and beyond. Pete has a PhD in Biological and Environmental Engineering from Cornell University and his work there as both graduate student and postdoc was spent rigorously building and testing acoustic recording devices for the Cornell Lab of Ornithology and novel field instrumentation for the Cornell Soil and Water Lab. With two decades of experience as a calibration technician and builder of instrumentation, Pete brings considerable knowledge to the development of sensing systems and devices.

Juan Bianchi is a researcher in hydrometeorological information systems at the Hydrological Information and Alert Systems Division of the National Water Institute, Argentina (SSIyAH-INA). His areas of expertise include operational hydrology, hydrological modelling, data management, web development and remote sensing. He holds a Master’s in integrated Hydrological Watershed Management (University of La Plata, Argentina).

Francois Rainville has over 20 years' experience in hydrometric monitoring at Water Survey of Canada (WSC), part of National Hydrological Services, within Environment and Climate Change Canada (ECCC). Initially involved in the adoption of hydroacoustic technologies by WSC, Francois then worked for 10 years in standards and training prior to becoming manager for this same unit responsible for all standards, training, quality management and safety protocols in support of the WSC operations.

Stewart Child, Hydrologist – Consultant, has nearly 50 years hydrological and water resources experience which includes hydrometry, hydrometric network design and optimisation, water resources planning and hydrometric training. He has worked in several parts of the world including the UK, Botswana, Samoa, India, Palestine, Hong Kong, Zambia, Malawi, Namibia, Myanmar, and the Republic of Ireland. He is currently Chair of both the British and European Standards Committees on Hydrometry and was the chair of the ISO Hydrometry Sub-committee on Velocity area methods (2015 – 2017).

Tatsuya Kimura is the Director of the Public-Private Engagement (PPE) Office at the World Meteorological Organization (WMO) Secretariat. He has over 30 years of extensive experience working in Japan and internationally, mainly in meteorological service, with experience in Japan’s national hydrological service and climate change. He currently leads the PPE Office to promote greater collaboration among stakeholders in the public, private and academic sectors and civil society entities towards providing better services to governments, diverse economic sectors, and the general public.

After a Master's degree and a thesis in river hydraulics (2006), focused on flow measurement by image analysis, at Grenoble Alpes University, Alexandre Hauet worked as a researcher in France (CNRS, INRAE) and abroad (University of Iowa). He joined Électricité de France (EDF - DTG) in 2008 as a hydrometer engineer. Since 2012, he is in charge of the development of materials and methods related to hydro-climatological observation (water level, flow, rain, snow, temperature) at EDF, with a specialization in flow and current measurement (ADCP, dilution, non-intrusive methods, associated uncertainties). In 2020, Alexandre worked one year for NVE (Ministry of Energy, Oslo, Norway) on hydrometric issues. He co-develops Fudaa-LSPIV, a free software for video-based streamgauging and co-manages the French-speaking professional network Groupe Doppler Hydrométrie.

Mark is President of Innovative Hydrology Consulting. He serves as a consultant and one of the lead experts in hydromet observation and information systems to the World Bank. His activities focus on preparing and overseeing the execution of water resource related projects that span Disaster Risk Management (DRM), Water Resources, and Climate.

Mark has been fortunate to consult in over 40, mostly developing countries, spanning six of the seven continents. Mark uses these opportunities to instill global good practices in hydrometry, data transmission and dissemination in real-time focusing leading to sustainable outcomes.

Fabrice Fretz is a public administration professional with extensive experience in international development. He is currently a program manager at SDC's water division, in charge of the preparations for the 2023 Water Conference and collaborations with UN-Water, WMO and IUCN. Fabrice took over this position in the summer of 2020 after 3 years in West Africa as regional migration advisor for SDC.

Environmental engineer and MBA with more than 18 years’ experience working on environmental and water resources management, with broad international experience working at the private sector, public sector, multilateral organizations and academia; and a strong focus in water infrastructure and water policy. Currently leading several regional agendas at the IDB as the WEF Security Initiative at the IADB, which entails pilot research projects and infrastructure design operations along the Latin America and the Caribbean Region. He is also leading the Water Funds Program, the Bank’s flagship project on green infrastructure and nature-based solutions, the Water Security Agenda and the Bank’s Initiative for Transboundary and International Waters. He has published as lead author and as co-author numerous publications in world class journals on water, sustainability and environmental related issues.

Marie-Claire ten Veldhuis is Associate Professor at the Water Resources Group of Delft University of Technology. Her research focuses on using field observations to unravel the interactions between atmospheric conditions and (eco)hydrological systems, from micro- to system scales. She co-leads the 4TU Plantenna program where 11 research groups develop innovative sensor technology to measure in-plant condition non-invasively, as well as microclimatic variability in its immediate environment (‘towards an internet of plants’). She is also a member of the TWIGA Executive Board, working with a European-Africa consortium to develop Water, Weather, and Climate Information through In Situ observations for Geo-Services in AFRICA. This includes improving satellite-based rainfall estimates through Citizen Science and Deep Learning and developing ways for local farmers to better cope with dry spells during the planting season.

Louise runs Water in Sight - a startup enabling NHMSs’ Gauge Readers to send water and weather measurements online using their phones. Recently piloted across Malawi, their pragmatic digitization solution is easy to teach, learn and scale. Louise’s work on innovation draws on a decade working with the World Bank on hydromet and water in Africa, consultancies for Sweco and stints with Oxfam and other NGOs. Being a geographer at heart and by training, Louise returned to school for an EMBA in 2017 to better bridge climate and water challenges with innovation, business processes and private investment.

Robert K.M. Sunday fondly known as Sunday is a Hydrologist and Acting Assistant Director of Water Resources responsible for Transboundary Water Management and Cooperation. He works in the Ministry of Water in the United Republic of Tanzania. In the capacity of Hydrologist, he heads the Surface Water Group and coordinates functions of operational surface hydrology in the Ministry and across the nine Water Basins in the country. For the last ten years, he has developed interest in addressing challenges of operational hydrology in order to generate credible hydrological data.