FRANÇAIS
A showcase of ÉTS researchers’ publications and other contributions
SEARCH

Evaluation of the ERA5 reanalysis as a potential reference dataset for hydrological modelling over North America

Downloads

Downloads per month over past year

Tarek, Mostafa, Brissette, Francois P. and Arsenault, Richard. 2020. « Evaluation of the ERA5 reanalysis as a potential reference dataset for hydrological modelling over North America ». Hydrology and Earth System Sciences, vol. 24, nº 5. pp. 2527-2544.
Compte des citations dans Scopus : 305.

[thumbnail of Arsenault-R-2020-20820.pdf]
Preview
PDF
Arsenault-R-2020-20820.pdf - Published Version
Use licence: Creative Commons CC BY.

Download (13MB) | Preview

Abstract

The European Centre for Medium-Range Weather Forecasts (ECMWF) recently released its most advanced reanalysis product, the ERA5 dataset. It was designed and generated with methods giving it multiple advantages over the previous release, the ERA-Interim reanalysis product. Notably, it has a finer spatial resolution, is archived at the hourly time step, uses a more advanced assimilation system and includes more sources of data. This paper aims to evaluate the ERA5 reanalysis as a potential reference dataset for hydrological modelling by considering the ERA5 precipitation and temperatures as proxies for observations in the hydrological modelling process, using two lumped hydrological models over 3138 North American catchments. This study shows that ERA5-based hydrological modelling performance is equivalent to using observations over most of North America, with the exception of the eastern half of the US, where observations lead to consistently better performance. ERA5 temperature and precipitation biases are consistently reduced compared to ERA-Interim and systematically more accurate for hydrological modelling. Differences between ERA5, ERA-Interim and observation datasets are mostly linked to precipitation, as temperature only marginally influences the hydrological simulation outcomes.

Item Type: Peer reviewed article published in a journal
Professor:
Professor
Brissette, François
Arsenault, Richard
Affiliation: Génie de la construction, Génie de la construction
Date Deposited: 16 Jun 2020 21:35
Last Modified: 17 Dec 2021 16:31
URI: https://espace2.etsmtl.ca/id/eprint/20820

Actions (login required)

View Item View Item