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Snow mass estimates now more reliable

A new study in the journal Nature by reseachers from the Finnish Meteorological Institute (FMI) and the Environment and Climate Change Canada produce the first reliable estimate of snow mass change and has helped to identify different continental trends.

Using the new GlobSnow 3.0 dataset they show that the 1980–2018 annual maximum snow mass in the Northern Hemisphere was, on average, 3,062 ± 35 billion tonnes.

Using a bias correction method they reduce uncertainty from 33% to 7.4%.

Paper: Pulliainen, J., Luojus, K., Derksen, C. et al. Patterns and trends of Northern Hemisphere snow mass from 1980 to 2018. Nature 581, 294–298 (2020).