Hydro Explorer: An interactive web app to investigate changes in runoff timing and runoff seasonality all over the world

Rottler, Erwin ORCIDiD
Vormoor, Klaus
Francke, Till
Bronstert, Axel ORCIDiD

DOI: https://doi.org/10.23689/fidgeo-4251
Rottler, Erwin; Vormoor, Klaus; Francke, Till; Bronstert, Axel, 2021: Hydro Explorer: An interactive web app to investigate changes in runoff timing and runoff seasonality all over the world. In: River Research and Applications, 37, 4, 544-554, DOI: https://doi.org/10.23689/fidgeo-4251. 
 
Vormoor, Klaus; 1 Institute of Environmental Science and Geography University of Potsdam Potsdam Germany
Francke, Till; 1 Institute of Environmental Science and Geography University of Potsdam Potsdam Germany
Bronstert, Axel; 1 Institute of Environmental Science and Geography University of Potsdam Potsdam Germany

Abstract

Climatic changes and anthropogenic modifications of the river basin or river network have the potential to fundamentally alter river runoff. In the framework of this study, we aim to analyze and present historic changes in runoff timing and runoff seasonality observed at river gauges all over the world. In this regard, we develop the Hydro Explorer, an interactive web app, which enables the investigation of >7,000 daily resolution discharge time series from the Global Runoff Data Centre (GRDC). The interactive nature of the developed web app allows for a quick comparison of gauges, regions, methods, and time frames. We illustrate the available analytical tools by investigating changes in runoff timing and runoff seasonality in the Rhine River Basin. Since we provide the source code of the application, existing analytical approaches can be modified, new methods added, and the tool framework can be re‐used to visualize other data sets.