Global Daily River Discharge product at 0.5° resolution from ISBA-CTRIP simulations based on ERA5-GPCC forcing from 1950 to 2023
Authors/Creators
- 1. Centre National de Recherches Météorologiques
- 2. CNRS Délégation Midi-Pyrénées
Description
This product provides global daily river discharge at a resolution of 0.5 degree from 1950 to 2023. It is derived from an offline simulation conducted with the ISBA-CTRIP global land surface modeling system (Decharme et al. 2019) embedded in the SURFEX version 8 modeling platform. It was designed for use in large-scale hydrological applications, as well as in the the CNRM climate models that participate in CMIP6 but also in large scale hydrological applications. The model is driven by meteorological forcing data (temperature, precipitation, humidity, winds, etc) derived from the ERA5 global atmospheric reanalysis, but where montly precipitation is corrected to align with the GPPC observed precipitation product. GPCC Full Data Monthly Product Version 2022 at 0.5 degree resolution are used from 1950 to 2020. For the last three years (2021 to 2023), we used the GPCC Monitoring Product Version 2022, which is only available at 1 degree resolution, and then interpolated at 0.5 degree using a conservative remapping.
Table of contents
- outlet = river flows at the mouth of each river basin flowing into the ocean, inland sea or lake (m3/s) -> derived from rivo
- rivo = river flows at each point of the the hydrological network (m3/s)
- rivv = river velocity (m/s)
- river-parameters
- flowdir = flow direction at each point of the hydrological network -> North (1), North East (2), East (3), South East (4), South (5), South West (6), West (7), North West (8), Sea Outlet (9), Inland Outlet (12)
- areacellr = grid-cell area (m2)
- drarea = upstream drainage area at each point of the hydrological network (m2)
- basin_boundaries = River basin boundaries referenced by its number
Notes
Please also reference Decharme et al. (2019) in your reports or articles if you use these data.
Files
Additional details
References
- Decharme, B., Delire, C., Minvielle, M., Colin, J., Vergnes, J.-P., Alias, A., et al. (2019). Recent changes in the ISBA-CTRIP land surface system for use in the CNRM-CM6 climate model and in global off-line hydrological applications. Journal of Advances in Modeling Earth Systems, 11, 1207–1252. https://doi.org/10.1029/2018MS001545