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Peer-reviewedCC BYEarth system science data

EARLS: a runoff reconstruction dataset for Europe

14 affiliations
  1. 1Helmholtz Centre for Environmental Research (Leipzig, Germany)
  2. 2Interdisciplinary Transformation University Austria (Linz, Austria)
  3. 3Department of Compound Environmental Risks, Helmholtz Centre for Environmental Research — UFZ, Leipzig, Germany
  4. 4Google Research, Munich, Germany
  5. 5Department of Compound Environmental Risks, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
  6. 6Department of Geography, University of Zurich, Zurich, Switzerland
  7. 7Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
  8. 8Climate Change, Extremes and Natural Hazards in Alpine Regions Research Center CERC, Davos Dorf, Switzerland
  9. 9Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
  10. 10WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland
  11. 11Google Research, Zurich, Switzerland
  12. 12Google Research, Zürich, Switzerland
  13. 13Center for Scalable Data Analytics and Artificial Intelligence (ScaDS.AI), Dresden/Leipzig, Germany
  14. 14Department of Hydro Sciences, TUD Dresden University of Technology, Dresden, Germany

Abstract

Data drives our understanding of hydrological processes, supports model development, and enables anticipatory water management. This contribution introduces EARLS: European Aggregated Reconstructions for Large-sample Studies. EARLS offers daily streamflow reconstructions for more than 10,000 basins in Europe including uncertainty estimates, covering the period from 1953 to 2023. The reconstruction is derived from a single Long Short-Term Memory (LSTM) based rainfall–runoff model trained on more than 5,000 basins. LSTMs represent the state of the art in rainfall–runoff modeling and are well suited to provide predictions in ungauged basins. We evaluate the quality of the reconstruction through quantitative evaluation on two held-out sets of basins and by conducting a qualitative assessment that compares EARLS-based peak flows and flood timing to previous large-scale hydrological studies. EARLS represents a new generation of datasets that harness the capabilities of Deep Learning to obtain accurate and high-resolution data. EARLS is available at https://doi.org/10.5281/zenodo.13864843 (Klotz et al., 2024b)

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BibTeX
@article{klotz2026earls,
  title = {{EARLS: a runoff reconstruction dataset for Europe}},
  author = {Daniel Klotz and Peter Miersch and Thiago Victor Medeiros do Nascimento and Fabrizio Fenicia and Corinna Frank and Martin Gauch and Jakob Zscheischler A},
  journal = {Earth system science data},
  year = {2026},
  month = jul,
  doi = {10.5194/essd-18-5485-2026},
  url = {https://doi.org/10.5194/essd-18-5485-2026},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - EARLS: a runoff reconstruction dataset for Europe
AU  - Daniel Klotz
AU  - Peter Miersch
AU  - Thiago Victor Medeiros do Nascimento
AU  - Fabrizio Fenicia
AU  - Corinna Frank
AU  - Martin Gauch
AU  - Jakob Zscheischler A
PY  - 2026
DA  - 2026/07/27
JO  - Earth system science data
DO  - 10.5194/essd-18-5485-2026
UR  - https://doi.org/10.5194/essd-18-5485-2026
AB  - Data drives our understanding of hydrological processes, supports model development, and enables anticipatory water management. This contribution introduces EARLS: European Aggregated Reconstructions for Large-sample Studies. EARLS offers daily streamflow reconstructions for more than 10,000 basins in Europe including uncertainty estimates, covering the period from 1953 to 2023. The reconstruction is derived from a single Long Short-Term Memory (LSTM) based rainfall–runoff model trained on more than 5,000 basins. LSTMs represent the state of the art in rainfall–runoff modeling and are well suited to provide predictions in ungauged basins. We evaluate the quality of the reconstruction through quantitative evaluation on two held-out sets of basins and by conducting a qualitative assessment that compares EARLS-based peak flows and flood timing to previous large-scale hydrological studies. EARLS represents a new generation of datasets that harness the capabilities of Deep Learning to obtain accurate and high-resolution data. EARLS is available at https://doi.org/10.5281/zenodo.13864843 (Klotz et al., 2024b)
SN  - 1866-3508
SN  - 1866-3516
ER  -