Crocus-ERA5 daily snow product over the Northern Hemisphere at 0.25° resolution

<p>The Crocus-ERA5 daily snow product is derived from the complex snow scheme Crocus coupled to the ISBA (Interactions between Soil&ndash;Biosphere&ndash;Atmosphere) land surface model (<a href="http://dx.doi.org/10.1175/JHM-D-12-012.1">Brun et al., 2013</a>) and embedded into the SURFEX numerical platform (<a href="https://www.umr-cnrm.fr/surfex/">https://www.umr-cnrm.fr/surfex/</a>). The model is driven by a meteorological forcing (temperature, precipitation, humidity, winds, etc) derived from the ERA5 global atmospheric reanalysis (<a href="https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5">https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5</a>). This product only concerns open field snowpack, i.e. only low vegetation is modeled (no forest). It covers the entire Northern Hemisphere at 0.25&deg; resolution over the 1950-07-01 to 2023-06-30 period. All snow characteristics (see later) are available at a dailly frequency. This product is the successor of the Crocus-ERA-Interim daily snow product (<a href="../records/10911538">Decharme, 2024</a>). It is used by the NOAA <a href="https://arctic.noaa.gov/report-card/">Artic Report Card</a> from 2021 to present for the annual survey of the Terrestrial Snow Cover anomalies over the Northern Hemisphere. An evaluation of the snow water equivalent product can be found in&nbsp;<a href="https://egusphere.copernicus.org/preprints/2024/egusphere-2023-3014/">Mudryk et al. (2024)</a> where it is compared to observations and to about twenty alternative datasets.</p>