Hydrological Sciences

1st International Training School on Urban Water Management and Nature-based Solutions for Sustainable Cities

Maria Magdalena Warter September 24, 2026

From 7-8 September 2026, the 1st International Training School on Urban Water Management and Nature-based Solutions for Sustainable Cities was held in Munich, Germany. Organised by researchers from the Technical University of Munich, the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, and the University of Cagliari in collaboration with the International Association of ...[Read More]

eDNA4Hydrology

Maria Magdalena Warter September 3, 2026

What flows around comes around For centuries, hydrologists have studied the flow of water through landscapes near and far. We measured flow rates, mapped aquifers and followed invisible paths of raindrops through soil and bedrock. Hydrology is a meticulous, beautiful science that has taught us much over the years. From the water cycle, surface water in rivers, wetlands and snowpack and groundwater ...[Read More]

Summary of the August 26th, 2026, Himalayan flash flood

György Hetényi and Shiba Subedi August 28, 2026

At the time of preparing this blog entry, we are less than 48 hours after the catastrophe which has hit the Himalaya. While the flow of new information continues, it is useful to summarize and clarify the key points around this event. WHAT? The massive destruction was caused by a flash flood. It was such a high energy that is rarely seen. Numerous videos can be found online. WHERE? The caus ...[Read More]

Drought in Europe

Bettina Schaefli August 18, 2026

Many of us are experiencing it right now: Europe is suffering from a long lasting large scale drought (Fig. 1), with record heat and low-flow levels that probably nobody of us has seen before; and current forecasts do not announce any relieve for the coming weeks. The pictures of record low levels in the river Rhine are scaring – knowing how strongly Europe depends on this fluvial transport ...[Read More]

Has groundwater finally gone mainstream?

Luka Vucinic August 13, 2026

Groundwater has always had an image problem. Throughout my career, I have lost count of how many times we have described groundwater as an “invisible resource” or similar. It is almost a cliché in hydrogeology. We use the phrase because it captures something really fundamental: groundwater is hidden physically, but it has also been hidden from public consciousness. What people cannot see or easily ...[Read More]

What machine learning can and cannot tell us about floods

Emma Ford July 23, 2026

Collage based on a picture by Imad Clicks via Pexel

Floods are shaped by complex and nonlinear interactions between weather patterns, rainfall, soil properties, topography, land cover, and how wet a catchment already is. This complexity is one reason machine learning (ML) is increasingly used in hydrology. ML models can learn patterns from large and complex datasets with many variables. Early in my PhD, while exploring machine learning models for ...[Read More]

HydroTalks: Prof. Thom Bogaard on Water and Landslides, Early Warning Systems, and IAHS-HELPING Decade

Thiruni Thirimanne and Archita Bhattacharyya July 9, 2026

For episode 11 of HydroTalks, we welcomed Prof. Thom Bogaard of Delft Technical University and visiting professor at Kasetsart University, Bangkok. His research explores the intersection of hydrology, geomorphology, ecology, and natural hazards. We discussed his work on understanding how water triggers landslides, improving regional early warning systems, and developing practical solutions that re ...[Read More]

Meet your ECS Rep – Archita Bhattacharyya

Annegret Roessler June 19, 2026

Archita Bhattacharyya is an Environmental Scientist and a research and development fellow at the Department of Environment, Food and Rural affairs, England. For 2026, she is the Early Career Scientist Representative for the Hydrological Sciences division. Can you tell us about the focus of your research? In my PhD, I focused on groundwater microbiology, especially how microbial communities change ...[Read More]

Dialogue is essential for advancing hydrological science

Thorsten Wagener June 18, 2026

A little over a decade ago, a group of us argued that “it takes a village to raise a hydrologist”. The skills and knowledge any hydrologist should be exposed to during their training goes far beyond what a single person can do and know. Even more, the experience of how water shapes and interacts with diverse landscapes all around the world cannot be obtained by a single person. This is true especi ...[Read More]

HydroTalks podcast: Introducing Ilias Pechlivanidis, the HS Division President-elect

Archita Bhattacharyya June 11, 2026

For this episode of HydroTalks, we’re thrilled to welcome Dr. Ilias Pechlivanidis, Senior Researcher and Associate Professor (Docent) in hydrology and water resources at the Swedish Meteorological and Hydrological Institute (SMHI), and Visiting Researcher at Uppsala University. He is currently the Vice President of the EGU Hydrological Sciences Division and will serve as Division President for th ...[Read More]