Articles | Volume 17, issue 5
Research article
25 May 2023
Research article |  | 25 May 2023

Forcing and impact of the Northern Hemisphere continental snow cover in 1979–2014

Guillaume Gastineau, Claude Frankignoul, Yongqi Gao, Yu-Chiao Liang, Young-Oh Kwon, Annalisa Cherchi, Rohit Ghosh, Elisa Manzini, Daniela Matei, Jennifer Mecking, Lingling Suo, Tian Tian, Shuting Yang, and Ying Zhang

Data sets

MERRA-2 tavgM_2d_lnd_Nx: 2d, Monthly mean, Time-Averaged, Single-Level, Assimilation, Land Surface Diagnostics V5.12.4 Global Modeling and Assimilation Office (GMAO)

ERA5 monthly averaged data on single levels from 1959 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut

CanSISE Observation-Based Ensemble of Northern Hemisphere 900 Terrestrial Snow Water Equivalent, Version 2 L. R. Mudryk and C. Derksen

ERA5-Land monthly averaged data from 1981 to present J. Muñoz-Sabater

Rutgers Northern Hemisphere 24 km Weekly Snow Cover Extent, September 1980 Onward, Version 1 D. A. Robinson and T. W. Estilow

ESA GlobSnow v3.0 snow water equivalent (SWE) Kari Luojus, Jouni Pulliainen, Matias Takala, Juha Lemmetyinen, and Mikko Moisander

Short summary
Snow cover variability is important for many human activities. This study aims to understand the main drivers of snow cover in observations and models in order to better understand it and guide the improvement of climate models and forecasting systems. Analyses reveal a dominant role for sea surface temperature in the Pacific. Winter snow cover is also found to have important two-way interactions with the troposphere and stratosphere. No robust influence of the sea ice concentration is found.