Thiago V. M. do Nascimento , Julia Rudlang, Marvin Höge, Ruud van der Ent, Máté Chappon, Jan Seibert, Markus Hrachowitz, Fabrizio Fenicia

Global hydrology datasets have become increasingly available, contributing to important scientific advances. However, in Europe, only a few such datasets were published and they only capture a fraction of the wealth of information national data providers have. We present “EStreams”, an extensive catalogue of openly available stream records and a dataset of hydro-climatic variables and landscape descriptors for 15,047 European catchments. The dataset spans up to 120 years of records, including catchment-aggregated hydro-climatic indices as well as landscape attributes (terrain, soils, lithology, vegetation and landcover). The catalogue includes detailed descriptions to allow users to directly access the sources of streamflow used, which overcomes data redistribution policies, different languages and structures of data portals. Furthermore, EStreams provides Python scripts for data retrieval, aggregation and processing. This approach enables users to readily and directly update their data as new records become available. Our goal is to extend current large-sample datasets and make a further step towards the integration of hydro-climatic and landscape data over Europe.