Global ERA5-based high-resolution river runoff (Version 1)

Hagemann, Stefan

Global ERA5-based high-resolution river runoff (Version 1)

doi:10.26050/WDCC/HDERA5_v1

Hagemann, Stefan

ExperimentDOI

CINAR CLICCS Discharge river runoff Subsurface runoff Surface runoff

Summary: ERA5 is the fifth generation of atmospheric reanalysis (Hersbach et al., 2020) produced by the European Centre for Medium-Range Weather Forecasts (ECMWF). It provides hourly data on many atmospheric, land-surface, and sea-state parameters at about 31 km resolution. It is frequently used to force regional climate models (RCMs) or ocean models. However, it lacks crucial information on riverine freshwater inflows at the land-ocean boundary. The latter is an important flux in ocean model or Earth System model applications, as it is affecting salinity and marine stratification in coastal areas. Therefore, we extended ERA5 with high-resolution river discharge from 1940-2024. Analogous to Hagemann and Stacke (2022), the global hydrology model HydroPy (Stacke and Hagemann 2021) and the Hydrological Discharge (HD) model (Vs. 5.2, Hagemann et al. 2023; Hagemann et al. 2020) were used to simulate daily discharge time series over the whole globe at 1/12° horizontal resolution.

HydroPy was driven by daily ERA5 forcing data from 1940-2024 to generate daily input fields of surface and subsurface runoff at the ERA5 resolution. In order to initialize the storages in the HydroPy model and to avoid any drift during the actual simulation period, we conducted a 30-years spin-up simulation by repeatedly using year 1940 of the ERA5 dataset as forcing. To generate river runoff, the HD model was operated globally at 5 arc minutes horizontal resolution. First, the forcing data of surface and sub-surface runoff simulated by HydroPy were interpolated to the HD model grid. Then, daily discharges were simulated with the HD model.

This work used resources of the Deutsches Klimarechenzentrum (DKRZ) granted via the Hereon part of the Helmholtz shareholder resources budget. Moreover, ERA5 datasets provided by DKRZ DM via the DKRZ data pool were used.
Project: coastDat-Land-Ocean-Fluxes (coastDat - Regional Water and Matter Fluxes at the Land-Ocean Interface)
Contact: Dr. Stefan Hagemann (
stefan.hagemann@nullhereon.de
0000-0001-5444-2945)
Location(s): global
Spatial Coverage: Longitude -180 to 180 Latitude -90 to 90
Temporal Coverage: 1940-01-01 to 2024-12-31 (calendrical)
Use constraints: Creative Commons Attribution 4.0 International (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0/)
Data Catalog: World Data Center for Climate
Size: 220.22 GiB (236459139703 Byte)
Format: NetCDF
Status: completely archived
Creation Date: 2025-06-25
Future Review Date: 2035-06-28

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Cite as: Hagemann, Stefan (2025). Global ERA5-based high-resolution river runoff (Version 1). World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/HDERA5_v1

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Funding: German Research Foundation
Grant/Award No: 390683824 - EXC 2037: Climate, Climatic Change, and Society (CLICCS)

FAIR

F-UJI result: total 70.83 %

Description: Summary:
Findable: 6 of 7 level;
Accessible: 2 of 3 level;
Interoperable: 3 of 4 level;
Reusable: 6 of 10 level
Method: F-UJI online v3.5.0 automated
Method Description: Checks performed by WDCC. Metrics documentation: https://doi.org/10.5281/zenodo.15045911 Metric Version: metrics_v0.8
Method Url: https://www.f-uji.net
Result Date: 2025-07-10

Scientific Quality Assurance (SQA)

SQA - Scientific Quality Assurance 'approved by author'

Result Date: 2025-07-08

Technical Quality Assurance (TQA)

TQA - Technical Quality Assurance 'approved by WDCC'

Description: 1. Number of data sets is correct and > 0: passed;
2. Size of every data set is > 0: passed;
3. The data sets and corresponding metadata are accessible: passed;
4. The data sizes are controlled and correct: passed;
5. The spatial-temporal coverage description (metadata) is consistent to the data: passed;
6. The format is correct: passed;
7. Variable description and data are consistent: passed
Method: WDCC-TQA checklist
Method Description: Checks performed by WDCC. The list of TQA metrics are documented in the 'WDCC User Guide for Data Publication' Chapter 8.1.1
Method Url: https://www.wdc-climate.de/docs/WDCC_User_Guide_Data_v1.pdf
Result Date: 2025-07-08

Contact type	Person	ORCID	Organization
Contact	Dr. Stefan Hagemann	0000-0001-5444-2945	Helmholtz-Zentrum Hereon
Author	Dr. Stefan Hagemann	0000-0001-5444-2945	Helmholtz-Zentrum Hereon
Investigator	Dr. Stefan Hagemann	0000-0001-5444-2945	Helmholtz-Zentrum Hereon
Funder	-	-	German Research Foundation

Is related to

[1] DOI Hagemann, Stefan; Stacke, Tobias; Ho-Hagemann, Ha T. M. (2020). High Resolution Discharge Simulations Over Europe and the Baltic Sea Catchment. doi:10.3389/feart.2020.00012

[2] DOI Hagemann, Stefan; Stacke, Tobias. (2023). Complementing ERA5 and E-OBS with high-resolution river discharge over Europe. doi:10.1016/j.oceano.2022.07.003

[3] DOI Kling, Harald; Fuchs, Martin; Paulin, Maria. (2012). Runoff conditions in the upper Danube basin under an ensemble of climate change scenarios. doi:10.1016/j.jhydrol.2012.01.011

Is compiled by

[1] DOI Stacke, Tobias; Hagemann, Stefan. (2021). HydroPy (v1.0): A new global hydrology model written in Python. doi:10.5194/gmd-2021-53

[2] DOI Hagemann, S., Ho-Hagemann, H. T., Hanke, M. (2023). The hydrological discharge model - a river runoff component for offline and coupled model applications (5.2.0). doi:10.5281/zenodo.7890682

Is derived from

[1] DOI Hersbach, Hans; Bell, Bill; Berrisford, Paul; Hirahara, Shoji; Horányi, András; Muñoz‐Sabater, Joaquín; Nicolas, Julien; Peubey, Carole; Radu, Raluca; Schepers, Dinand; Simmons, Adrian; Soci, Cornel; Abdalla, Saleh; Abellan, Xavier; Balsamo, Gianpaolo; Bechtold, Peter; Biavati, Gionata; Bidlot, Jean; Bonavita, Massimo; Chiara, Giovanna; Dahlgren, Per; Dee, Dick; Diamantakis, Michail; Dragani, Rossana; Flemming, Johannes; Forbes, Richard; Fuentes, Manuel; Geer, Alan; Haimberger, Leo; Healy, Sean; Hogan, Robin J.; Hólm, Elías; Janisková, Marta; Keeley, Sarah; Laloyaux, Patrick; Lopez, Philippe; Lupu, Cristina; Radnoti, Gabor; Rosnay, Patricia; Rozum, Iryna; Vamborg, Freja; Villaume, Sebastien; Thépaut, Jean‐Noël. (2020). The ERA5 global reanalysis. doi:10.1002/qj.3803

[2] DOI Hersbach, H.; Bell, B.; Berrisford, P.; Hirahara, S.; Horányi, A.; Muñoz‐Sabater, J.; Nicolas, J.; Peubey, C.; Radu, R.; Schepers, D.; Simmons, A.; Soci, C.; Abdalla, S.; Abellan, X.; Balsamo, G.; Bechtold, P.; Biavati, G.; Bidlot, J.; Bonavita, M.; De Chiara, G.; Dahlgren, P.; Dee, D.; Diamantakis, M.; Dragani, R.; Flemming, J.; Forbes, R.; Fuentes, M.; Geer, A.; Haimberger, L.; Healy, S.; Hogan, R.J.; Hólm, E.; Janisková, M.; Keeley, S.; Laloyaux, P.; Lopez, P.; Lupu, C.; Radnoti, G.; de Rosnay, P.; Rozum, I.; Vamborg, F.; Villaume, S.; Thépaut, J-N. (2017). Complete ERA5 from 1940: Fifth generation of ECMWF atmospheric reanalyses of the global climate. Copernicus Climate Change Service (C3S) Data Store (CDS) (Accessed on 15-JUN-2023) Data distribution by the German Climate Computing Center (DKRZ). doi:10.24381/cds.143582cf

Attached Datasets ( 2 )

Parent project(s)

coastDat - Regional Water and Matter Fluxes at the Land-Ocean Interface

[Entry acronym: HDERA5_v1] [Entry id: 5285901]