An ensemble of daily simulated runoff data (1981–2099) under climate change conditions for 93 catchments in Switzerland (Hydro‐CH2018‐Runoff ensemble)

Muelchi, Regula Isabelle; Rössler, Ole; Schwanbeck, Jan; Weingartner, Rolf; Martius, Olivia (2021). An ensemble of daily simulated runoff data (1981–2099) under climate change conditions for 93 catchments in Switzerland (Hydro‐CH2018‐Runoff ensemble). Geoscience Data Journal Wiley 10.1002/gdj3.117

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We present a new ensemble of daily runoff simulations for meso-scale catchments in Switzerland for the period 1981–2099: The Hydro-CH2018-Runoff ensemble. The ensemble contains runoff simulations for 93 catchments in Switzerland covering a wide range of different catchment characteristics governed by pluvial, nival and glacial runoff regimes. The hydrological modelling system PREVAH was thoroughly calibrated and validated for each catchment. The simulations show satisfactory performance with a median Nash-Sutcliffe efficiency of 0.82 in the calibration and validation period. The calibrated parameters were then used to simulate runoff under climate change for each of the 93 catchments. These simulations were driven by the high-resolution new Swiss climate change scenarios (CH2018) consisting of 68 GCM-RCM combinations covering 3 different emission scenarios: RCP2.6, RCP4.5 and RCP8.5. The simulations show good agreement between simulated and observed runoff regimes in the reference period. The Hydro-CH2018-Runoff ensemble is publicly available under http://doi.org/10.5281/zenodo.3937485 (Muelchi, R., Rössler, O., Schwanbeck, J., Weingartner, R., and Martius, O. (2020) Hydro-CH2018-Runoff ensemble (version v1). Zenodo) and can be used for further impact studies.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography > Physical Geography > Unit Impact
08 Faculty of Science > Institute of Geography > Physical Geography

UniBE Contributor:

Mülchi, Regula Isabelle; Schwanbeck, Jan; Weingartner, Rolf and Romppainen-Martius, Olivia

Subjects:

500 Science > 550 Earth sciences & geology
900 History > 910 Geography & travel

ISSN:

2049-6060

Publisher:

Wiley

Funders:

[70] Bundesamt fur Umwelt (BAFU)

Language:

English

Submitter:

Yannick Barton

Date Deposited:

22 Jul 2021 09:36

Last Modified:

22 Jul 2021 09:36

Publisher DOI:

10.1002/gdj3.117

BORIS DOI:

10.48350/157563

URI:

https://boris.unibe.ch/id/eprint/157563

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