Snow in the changing sea-ice systems

• Published in: Nature Climate Change
• Main Authors: Webster, M, Gerland, S, Holland, M, Hunke, E, Kwok, R, Lecomte, O, Massom, R, Perovich, D, Sturm, M
• Format: Article in Journal/Newspaper
• Language: English
• Published: Nature Publishing Group 2018
• Subjects: Physical Sciences; Other physical sciences; Other physical sciences not elsewhere classified; Sea ice
• Online Access: https://doi.org/10.1038/s41558-018-0286-7; http://ecite.utas.edu.au/129173

Snow is the most reflective, and also the most insulative, natural material on Earth. Consequently, it is an integral part of the sea-ice and climate systems. However, the spatial and temporal heterogeneities of snow pose challenges for observing, understanding and modelling those systems under anthropogenic warming. Here, we survey the snowice system, then provide recommendations for overcoming present challenges. These include: collecting process-oriented observations for model diagnostics and understanding snowice feedbacks, and improving our remote sensing capabilities of snow for monitoring large-scale changes in snow on sea ice. These efforts could be achieved through stronger coordination between the observational, remote sensing and modelling communities, and would pay dividends through distinct improvements in predictions of polar environments.